Domain 3 Hardware

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Assuming all other processor specifications are the same, which of the following processor sizes will consume the least amount of power? 65 nm 45 nm 32 nm 90 nm

Explanation A 32 nm (nanometer) processor will consume the least amount of power (all other things being equal). A smaller process size means smaller transistors, which translates into a smaller CPU die with more transistors and less power consumption.

Which optical media has the greatest storage capacity? Dual-layer, single-sided DVD Compact disc Single-layer, single-sided Blu-ray disc Dual-layer, double-sided DVD

Explanation A Blu-ray disc has the greatest storage capacity of all optical media. A single-sided Blu-ray disc holds up to 25 GB of data. Dual-layer or double-sided discs double the storage capacity. Experimental 20 layer Blu-ray discs hold up to 500 GB. Single-layer, single-sided DVDs hold about 4.7 GB. A dual-layer or double-sided DVD can hold up to 8.5 GB; a dual-layer, double-sided DVD can hold up to 17 GB.

You are an IT professional that works with home users. One of your customers works from home and uses multiple Windows computers as well as an Apple Mac computer. Your customer wants to be able to switch between his computers without changing the keyboard and monitor currently in use. Which of the following devices would BEST facilitate sharing his monitor and other input devices with all of his computers? HDMI splitter USB multi-port hub KVM switch VGA splitter

Explanation A KVM (keyboard, video, and mouse) switch allows multiple computers to use a single keyboard, mouse, and monitor. KVM switches have multiple input groups. Each group accepts keyboard, video, and mouse connections from one computer. A single output group connects to the shared peripheral devices. Buttons on the KVM switch are used to toggle between each connected computer. Some KVMs allow you to switch devices using a special keyboard key combination. An HDMI splitter is used to take a single source (such as a computer) and distribute that HDMI signal to multiple output devices, such as monitors. A VGA splitter is a cable or device that allows you to separate a video signal into multiple connections and connect those individual signals to multiple devices. A multi-port USB hub is a device that expands a single Universal Serial Bus (USB) port into several so that there are more ports available to connect devices to a host system, similar to a power strip.

You have three computers in your office. You would like to reduce the time it takes to move from one computer to the next, and you would like to use only one keyboard, one monitor, and one mouse for all three computers. Which of the following devices BEST allows this type of setup? Router DVI USB hub KVM

Explanation A KVM (keyboard, video, mouse) switch would allow you to control all three computers with one keyboard, one monitor, and one mouse. The KVM switch has multiple input groups, and each group accepts keyboard, video, and mouse connections from a single computer. A single output group connects to the shared input/output devices. Buttons on the KVM switch or keyboard shortcut combinations allow you to toggle the input/output devices between computers. A USB hub allows multiple USB-compatible devices (up to 127) to be connected to a single USB connection, but the hub does not connect to or control multiple PCs. A router is a networking device that connects multiple networks. DVI is a standard for connectors to digital video cards.

One of the video editors in your company is worried that he may lose a lot of data if his hard drive fails. He has asked you to come up with a solution. To do this, you have decided to implement a RAID 10 solution on his desktop workstation. Which of the following is the MINIMUM number of hard disks that can be used? 2 3 4 5 6

Explanation A RAID 10 array nests a mirrored array within a striped array. To create a RAID 10 array, a minimum of four hard disks is required (two for the mirrored array and two more to stripe the mirror).

You have been asked to implement a RAID 5 solution for an engineer's desktop workstation. What is the minimum number of hard disks that can be used to configure RAID 5? 2 3 4 5 6

Explanation A RAID 5 array stripes data and parity information across multiple hard disks. To complete a RAID 5 array, a minimum of three hard disks is required. RAID 0 and RAID 1 can both be implemented with a minimum of two hard disks.

Which Blu-ray standard defines rewritable disks? BD-R BD-RE BD-ROM BD-R/RW

Explanation BD-RE is the Blu-ray standard that defines rewritable disks. BD-ROM is the read-only standard, and BD-R is the recordable standard. R/RW is used to designate rewritable CD and DVD discs, not Blu-ray discs.

A computer being used by the HR department needs to ensure that all of the data on that computer is protected from a single hard disk failure. The data needs to be read as quickly as possible, and the HR department would like to maximize drive use as much as possible. This computer can use up to three hard drives. Which of the following RAID types would meet these requirements and provide the BEST data protection? RAID 0 RAID 1 RAID 5 RAID 10

Explanation A RAID 5 volume combines disk striping across multiple disks with parity for data redundancy. Parity information is stored on each disk. If a single disk fails, its data can be recovered using the parity information stored on the remaining disks. RAID 5 also provides an increase in performance for read operations. With three drives, RAID 5 uses approximately 33% overhead, whereas RAID 1 and 10 use 50%. RAID 0 does not provide fault tolerance. If one disk in the set fails, all data is lost. RAID 10 requires a minimum of four disks; this computer only has three.

Which of the following functions are performed by the TPM? Encrypt data on the hard disk drive. Create a hash based on installed system components. Perform bulk encryption. Generate authentication credentials.

Explanation A Trusted Platform Module (TPM) is a hardware cryptoprocessor that resides on the motherboard that stores and generates cryptographic keys. Using these keys, the TPM can generate a hash value based on the components installed in the system. The hash value can be used to verify that system components have not been modified when the system boots. Because each system will have a unique hash value, the hash can also be used as a form of identification for the system. Keys generated by the TPM can be used for encryption and authentication, but the TPM does not perform the actual encryption.

Which security measure can be used to generate and store cryptographic keys? Chassis intrusion detection Trusted Platform Module (TPM) DriveLock BIOS/UEFI password

Explanation A Trusted Platform Module (TPM) is a special chip on the motherboard that generates and stores cryptographic keys. The TPM can be used by applications (such as Bitlocker on Windows systems) to generate and save keys that are used for encryption. DriveLock is a disk encryption solution. Chassis intrusion detection helps you identify when a system case has been opened. A BIOS/UEFI password controls access to the BIOS/UEFI setup program.

Which of the following components is a special hardware chip included on the computer motherboard that contains software in firmware that generates and stores cryptographic keys? BIOS/UEFI Trusted Platform Module (TPM) USB device BitLocker partition

Explanation A Trusted Platform Module (TPM) is a special hardware chip included on the computer motherboard that contains software in firmware that generates and stores cryptographic keys. The TPM chip must be enabled in the BIOS/UEFI. A USB device is used to save the BitLocker key on a system that does not have a TPM chip. Implementing BitLocker requires two NTFS partitions.

You work for a small company as the human resources specialist. Since the company is fairly small, you are maintaining all of the employee information on your desktop computer, which is running Windows 10. This computer has two high-capacity hard disks. You want to ensure that this information is protected from a hard disk failure, so you want to set up a Windows software RAID system. Which of the following would be your BEST solution? Use RAID 5 volumes. Use mirrored volumes. Use spanned volumes. Use striped volumes.

Explanation A Windows software RAID system can be configured in Windows 10 using the Windows Disk Management tool. Of the available options from within Disk Management, you would need to configure a mirrored volume to protect your data from a disk failure. Disk mirroring requires two available drives with sufficient storage. Once configured, the data written to a mirrored volume is duplicated to both drives. This duplication, or mirroring, means that if one of the mirrored drives fails, all of the data can still be retrieved from the remaining good drive. A spanned volume is a dynamic volume consisting of disk space on more than one physical disk. This method does not duplicate the data. If a spanned volume drive fails, the data is lost. A striped volume uses the free space on more than one physical hard disk to create a bigger volume similar to a spanned volume. However, a striped volume writes across all volumes in the stripe in small blocks, distributing the load across the disks in the volume. In other words, when a single file is written, some of the file will be on one disk, and the rest of the file will be on another disk. This makes writing files faster as the data to all of the disks in the strip at the same time. It does not, however, protect the data in the event of a disk failure. RAID 5 requires more than two disks.

You work at a computer repair store. You just upgraded the processor (CPU) in a customer's Windows-based computer. The customer purchased the latest AMD Phenom II processor, and you installed it in the computer. When you power the computer on, you only see a blank screen. Which of the following is MOST likely causing the computer displaying a blank screen? (Select TWO). Someone unplugged the computer without performing a proper shutdown first. The CPU is bad. The heat sink and fan were not installed correctly. The CPU is not supported by the BIOS. The power connector for the fan was not connected to the motherboard.

Explanation A bad CPU or a CPU not supported by the BIOS can cause the computer to display a blank screen when trying to power on. If the processor is not supported by the BIOS, you might be able to perform a BIOS update to make it recognize the new processor. However, you would need to install a supported processor first, flash the BIOS, and then re-install the new processor. An improperly installed fan or heat sink may cause issues shortly after power-on, but will not initially cause the computer to boot to a blank screen. Although you should always shutdown your computer using the proper steps, it is unlikely that this would cause the computer to boot to a blank screen.

A technician connects two network switches using a twisted pair cable. Neither switch supports auto-uplinking. Which of the following identifies the TIA wiring standard required on each end of the cable? Both ends must only be T568A. Both ends must only be T568B. One end must be T568A, and the other must be T568B.

Explanation A crossover cable connects two switches that don't support auto-uplinking. A crossover cable is constructed using the T568A wiring standard on one end and the T568B standard on the other end. If both ends are T568A, the cable is a straight-through cable. If both ends are T568B, the cable is a straight-through cable.

You want to upgrade all memory in your system with the fastest memory available. Which of the following should you choose? DDR4 DDR3 DDR2 Choose the type of memory that is supported by your motherboard.

Explanation Different memory module forms are not interchangeable. A motherboard will only accommodate one type of memory. Subsequently, the fastest memory in this case is the memory that fits in the system.

Match the peripheral devices on the left with the descriptions or examples on the right. Each peripheral device may be used once, more than once, or not at all. Used to scan hardware that contains an embedded microchip for authentication. Smart card reader Used to capture some type of analog signal and convert it into digital data. Digitizer Can be a stand-alone device or integrated with other peripherals, such as a keyboard. Smart card reader Used to scan users' unique physical features and use them to verify their identity. Biometric scanner Graphics tablets mostly used by graphic artists to capture hand-drawn images. Digitizer Fingerprint scanner. Biometric scanner Most commonly used in retail environments at checkout stands. Barcode reader

Explanation A digitizer captures some type of analog signal and converts it into digital data. For example, graphics tablets capture analog stylus strokes written on a pad and convert them to digital data. These are mostly used by graphic artists to capture hand-drawn images. Smart card readers are used as an authentication method. A smart card, which contains an embedded microchip, is inserted into the reader. The reader then scans the chip, verifies its contents, and authenticates the user. Smart card readers can be stand-alone devices or integrated with other peripherals (such as a keyboard). Biometric scanners are used as a form of authentication. They are able to scan users' unique physical features and use them to verify their identity. Biometric scanners commonly identify retinas, fingerprints, faces, and heart beats. A barcode reader is a device that can scan barcodes. Barcodes are most commonly used in retail environments at checkout stands. Shipping companies, hospitals, and other organizations use barcodes to track or inventory items.

You are a PC technician for a national computer retailer. A customer asks you to build three custom computers for him to use at his home office. He requests a gaming PC, a home office server, and a thick client workstation. Drag and drop each PC hardware configuration on the left to the most appropriate workstation type on the right. Home office server · 2 TB RAID 5 disk array · 600 W power supply · No audio adapter · Integrated video adapter Gaming PC · 1000 W power supply · 1 TB SATA HD · Dual SLI 6 GB PCIe video adapters · 5.1 channel surround sound adapter · Liquid CPU cooler Thick client workstation · 400 W power supply · 500 GB SATA HD · 512 MB PCIe video adapter · Basic desktop applications installed

Explanation A home office server needs to store a lot of data quickly and reliably. Video and audio performance are of less concern. However, the increased number of storage devices require an upgraded power supply. The following hardware issufficient for this system: · 2 TB RAID 5 disk array · 600 W power supply · No audio adapter · Integrated video adapter A thick client needs to be able to run desktop applications locally and also needs to connect to a remote desktop session. As such, it only needs to meet the minimum requirements for the local operating system and installed applications. The following hardware would be sufficient: · 400 W power supply · 500 GB SATA HD · 512 MB PCIe video adapter · Basic desktop applications installed A gaming PC needs high-end graphics and audio, such as dual SLI-linked video adapters. These devices consume a lot of power, so a high-end power supply will be required, as well as additional cooling capacity. The following hardware would be appropriate: · 1000 W power supply · 1 TB SATA HD · Dual SLI 6 GB PCIe video adapters · 5.1 channel surround sound adapter · Liquid CPU cooler

Which type of printer uses lasers and electrical charges to transfer images to paper? Thermal inkjet (bubble jet) Laser Dot matrix Piezoelectric crystal inkjet

Explanation A laser printer uses lasers and electrical charges to transfer images to paper. A thermal inkjet printer applies heat to the ink in print head nozzles, causing the ink to boil and expel itself from the nozzle. A piezoelectric printer uses pressure, not heat, to apply the ink. A dot matrix printer uses pins striking the ink ribbon to transfer the ink.

A sales person requires that a large number of document, data, presentation, image, and video files be accessible on their personal mobile device when making sales pitches to new customers. A cloud solution is not feasible, since cellular and internet connections are not always guaranteed at a customer site. Which of the following accessories would a technician suggest to BEST meet the sales person's requirements? Credit card reader Wireless hotspot Docking station Micro SD Card

Explanation A micro SD will add storage to a mobile device. Data files on the micro SD will be available even without cellular and Wi-Fi connectivity. The card can be moved to other devices to update the files. A docking station might be beneficial if a storage device is attached. However, the docking station would be clumsy to work with and is not the BEST solution. A wireless hotspot would not be possible if there is no cellular connectivity. A credit card reader would be helpful when collecting payment when a sale is made, but will not store data files.

Which connector on the back of a computer is used to attach a mouse to a modern PC system? Low-density (two row) female DB-15 High-density (three row) female DB-15 RJ45 USB

Explanation A mouse is most commonly attached to a computer using a USB connector. A DB-15 connector with two rows is commonly used for joysticks. The DB-15 connector with three rows is used for connecting CRT monitors to the video card. The RJ45 connector is used for Ethernet network connections.

Which of the following refers to placing two processors on a single processor chip or die? Multi-threading Multi-core Hyper-threading Multi-processor

Explanation A multi-core processor has multiple processor cores integrated into a single processor package. A multi-processor motherboard allows you to install two (or more) processors on the same motherboard. Hyper-threading is a feature of some Intel processors that allows a single processor to run threads in parallel, as opposed to the older and slower technology of processing threads linearly. Multi-threading is an operating system feature that allows more than one process to work at the same time.

Your computer has one single core processor installed. The motherboard supports processors with up to four cores. You want to upgrade your computer to a quad-core system. Which of the following will be part of your configuration? Remove the terminating resistor from slots where the new processor will be installed. Configure the system to use dual channel memory. Replace the existing processor. Add a second processor that matches the speed of the first processor.

Explanation A multi-core system supports processors that have multiple processors on a single processor die. Multi-core systems have a single processor slot. To upgrade this system, you need to remove the existing processor and replace it with one that has four cores. Multi-processor systems have multiple processor slots on the motherboard. All processors in the system should be of the same speed. Unused slots are filled with a terminating resistor. Dual-channel memory does not affect using dual processors or dual core processors.

Which of the following is a characteristic of a multi-processor system? Multiple cores on the same die Multiple processor sockets on the motherboard Ability to use over 4 GB of memory Shared L2 cache

Explanation A multiple-processor system has multiple CPUs, with each CPU requiring a different processor socket on the motherboard. A multi-core system is a processor with multiple CPUs on the same die. A multi-core system uses a single processor socket for multiple CPUs. L2 cache might be shared between two or more cores in a multi-core system, but would not be shared in a multiple-processor solution. 64-bit processors are required to be able to use more than 4 GB of memory.

Which of the following tools is specifically designed to test the DC voltage on a hard disk drive power connector? Loopback plug Multimeter Power supply tester Cable tester

Explanation A power supply tester is specifically designed to test DC voltage on most connectors coming from a PC power supply. A multimeter measures electrical properties such as voltage, amps, and resistance. A multimeter can also be used to test DC voltage on a Molex connector; however, it isn't a tool dedicated to this purpose. A cable tester verifies that a network can carry a signal from one end to the other and that all wires within the connector are in their correct positions. A loopback plug lets you test a port for proper functionality. The loopback plug crosses the receive and transmit wires. Essentially, this lets the computer send a signal to itself.

A user normally connects a laptop to a company's network using the laptop's internal wireless NIC. The laptop does not have an Ethernet port. The wireless network has failed, and the replacement part will take two days to arrive. Which of the following solutions will connect the laptop to the company's wired network? Enable a Bluetooth connection between the laptop and a computer that is connected to the network. Use a USB-to-RJ45 dongle and connect to a wall jack with an Ethernet cable. Use a USB-to-Wi-Fi dongle to replace the laptop's internal wireless NIC. Transfer files using an external USB flash drive and then move the flash drive to a computer that is connected to the network.

Explanation A simple solution is to use a USB-to-RJ45 dongle and connect to a wall jack with an Ethernet cable. The USB-to-Wi-Fi dongle would not work because the wireless network is not operating. Although important files could be transferred using a USB flash drive, transferring files does not connect the laptop to the network. A Bluetooth connection may be possible between the laptop and a computer that is connected to the network. However, special software or configurations must be used to pass network traffic from the laptop through the computer and to the network.

Brian is a new employee on the development team. As part of his job, he runs three virtual machines (VMs) on his computer. Each VM runs a different Windows license. After a while, Brian notices that his VMs are not running as fast as he thought. He has asked you to explore the issue. Which of the following BEST describes why Brian's VMs are running slowly? Brian's computer has a quad-core processor, but hyper-threading has not been configured. Brian's computer has a single dual-core CPU containing two central processing units. Brian's computer has a single-core CPU configured to use hyper-threading. Brian's computer has two physical CPUs, but hyper-threading has not been configured.

Explanation A single physical CPU core with hyper-threading appears as two logical CPUs to an operating system. While the operating system sees two CPUs for each core, the actual CPU hardware only has a single set of execution resources for each core. The CPU acts as if it has more cores than it does, but uses its own logic to speed up program execution. Two physical CPUs (even without hyper-threading) would be faster than a single-core CPU using hyper-threading. Likewise, a dual-core CPU is faster than a single core with hyper-threading. The Quad-core processor even without hyper-threading would be faster than a single-core CPU with hyper-threading.

You are in the process of purchasing several new Windows-based computers to replace broken or outdated computers. You have heard that solid state drives (SSDs) can significantly increase the overall performance of the system. Which of the following BEST describes the features of solid state drives (SSDs) compared to hard disk drives (HDDs)? (Select TWO). An SSD stores a large amount of storage cheaply. An SSD opens files faster than an HDD. An SSD can be adversely affected by magnetism. An SSD uses flash technology to store data. SSD spindles spin at a faster rate than HDD. An SDD has the best Mean Time Before Failure (MTBF).

Explanation A solid state drive is a flash device with a storage capacity similar to a small hard drive. Solid state drives are used as replacements for hard disk drives and store operating system, application, and data files. Solid state drives have several advantages. They: · Are faster than hard drives. · Have no moving parts. · Have lower power consumption than hard drives (which is good for laptops). · Are less susceptible to physical damage (from dropping) and immune to magnetic field damage. · Are smaller and lighter than hard drives. The main disadvantage of solid state drives is cost--they are several times more expensive than comparable hard drives. However, their advantages make them a good choice in many situations, especially for portable devices.

Which kind of connector do you use to connect a modem to a standard telephone line? RJ45 RG58 RJ11 F-type

Explanation A standard telephone line connector is an RJ11. RJ45 jacks are used for Ethernet twisted pair cables. Video cards and monitors with a built-in TV tuner have an F-type video connector. RG58 is used for 10Base2 Ethernet networking (also called Thinnet).

You are purchasing several PC system that will be used as thin clients in a large organization. Which of the following hardware selection criteria would be the MOST important for this system? RAID 0 array High-end video adapter 64-bit 8-core processor Gigabit Ethernet adapter

Explanation A thin client only needs to be able to connect to a remote desktop session, so it only needs to meet the minimum requirements for running Windows locally. You should select a system with the fastest network adapter supported by the network it will be connected to. Gigabit speeds (or faster) are recommended. This will help ensure that the remote desktop session provides a reasonable end user experience. A RAID 0 array, high-end video adapter, or 8-core CPU really isn't needed in this type of system.

You are the IT administrator for your company. You have several users who want to work from home by connecting to a server running at the corporate headquarters. Your manager has asked you to keep costs to a minimum as you provide computers for this environment. Which of the following types of PCs would work BEST for these remote users? Thin client CAD/CAM workstation Tablet Thick client

Explanation A thin client only needs to be able to connect to a remote desktop session. As such, it only needs to meet the minimum requirements for running Windows locally. A thick client, CAD/CAM workstation, and tablets have additional requirements to run their operating system and applications.

You have just purchased a new home and want to purchase a home theater computer system. Which of the following hardware selection criteria are the MOST important for this system? (Select TWO). RAID 5 disk array RAM configured to run in quad-channel mode HTPC form factor Video card with HDMI output 64-bit processor with 12 cores

Explanation A video card with HDMI output and an HTPC form factor is more appropriate for a home theater system. A RAID 5 disk array, 12-core CPU, and quad-channel RAM are more appropriate for a virtualization workstation.

You decided to upgrade your PC with a faster processor. To do this, you ordered a new motherboard over the Internet that supports the processor you want to use. When it arrives, you discover that the motherboard uses the Micro-ATX form factor. Your current case is an ATX mid-tower with a standard ATX motherboard inside. What steps must be taken for the Micro-ATX motherboard to work in the ATX case? Return the motherboard and replace it with an ATX form factor motherboard as the Micro-ATX will not fit without modifying the case. No additional steps are necessary, the Micro-ATX motherboard can be installed in the ATX case. Drill new holes in the Micro-ATX motherboard to match the mounting hole pattern in the ATX case. Drill new holes in the ATX case to match the mounting hole pattern in the Micro-ATX motherboard.

Explanation ATX mid-tower cases support all ATX form factors, including Micro-ATX. The main difference between ATX and Micro-ATX is the number of bus and memory slots on the motherboard.

You are using a crimper to attach an RJ45 connector to a Cat 6 UTP cable. You need to use the T568A standard to connect the individual wires to the connector. Which wire should be connected to pin 1? Green with white Blue Green Orange with white

Explanation According to the T568A standard, the green with white wire should be connected to pin 1 in the RJ45 connector.

Match the cooling system types on the left with the appropriate characteristics and uses on the right. Each cooling system type can be used once, more than once, or not at all. Used for cooling high-end video cards Active heat sink Used for cooling high-end gaming computers Liquid cooling Has a fan attached to the heat sink Active heat sink Used for cooling CPUs Active heat sink Exhausts hot air out of the back of the case Power supply Used for cooling memory modules Passive heat sink Used for cooling high-performance systems Liquid cooling Has no fan attached to the heat sink Passive heat sink

Explanation Active heat sinks have an attached fan that helps cool off the component at a faster rate. Active heat sinks are used with the following components: · CPUs · High-end video cards Passive heat sinks do not have a fan and instead rely on increased surface area and passive air movement to cool the component. Passive heat sinks are used with the following components: · Low-end video cards · Memory modules ATX power supplies aid in cooling by exhausting hot air out the back of the case. Liquid cooling systems are used when air cooling is not sufficient. Because liquid cooling can dissipate heat much faster than air cooling, it is primarily used for high-end gaming computers and high-performance systems. Case fans create a pressurized system that allows air to flow through the case in a specific way.

You have just installed a maintenance kit in your laser printer. Which of the following is the BEST next step to perform? Correct Answer: Use the automatic cleaning feature. Correct Answer: Check the gap between the print head and the paper. Correct Answer: Reset the page count. Correct Answer: Reinstall the print drivers.

Explanation After installing a maintenance kit in your laser printer, you should reset the page count. The parts in a maintenance kit are replaced on a regular basis (usually after about 20,000 pages of printing).On dot matrix printers, you should check the gap between the printer head and the paper to avoid printer images become faint. Use an inkjet's automatic cleaning feature if letters have missing lines. The print drivers may need reinstallation if they become corrupt.

You have just set up a new laser printer for the company president on her Windows workstation. You have installed the printer and the drivers. What should you do next? Report to your supervisor that the job was completed. Share the printer over the network with the rest of the organization. Edit the printer properties to configure device-specific settings. Document the steps you took to complete the configuration.

Explanation After installing a printer, you should configure device-specific settings before performing any further tasks. Documenting the steps you took to complete the configuration and reporting to your supervisor that the job was completed are good things to do, but not until after you have configured device-specific settings. Sharing the printer over the network is not required unless specified in the implementation plan or statement of work.

You installed a new toner cartridge in a company-owned laser printer and did some maintenance tasks that you noticed needed to be done. Which of the following BEST describes the next step you should perform? Correct Answer: Reset the page count. Correct Answer: Check the gap between the printer head and the paper. Correct Answer: Use the automatic cleaning feature. Correct Answer: Reinstall the print drivers.

Explanation After performing regular maintenance tasks on a laser printer, you should reset the page count. A printer needs maintenance on a regular basis (usually after about 20,000 pages of printing), so it helps to know how many pages have been printed since the last time it was serviced. On dot matrix printers, you should check the gap between the printer head and the paper to avoid printer images becoming faint. Use an inkjet's automatic cleaning feature if letters have missing lines. The print drivers would only need reinstallation if they had become corrupted.

You replaced the print cartridge on an inkjet printer. Which of the following BEST describes the next step you should perform? Correct Answer: Send the printer to the factory for a realignment. Correct Answer: Calibrate the printer. Correct Answer: Replace the ribbon. Correct Answer: Replace the fuser roller assembly.

Explanation After replacing print cartridges, perform a calibration. The calibration uses the self-test to check the printed image and make minor adjustments automatically. Calibration helps avoid blurry text, misalignment (jagged lines), and incorrect colors. Dot matrix printers use a ribbon and should be replaced if printer images become faint. Fuser roller assemblies are found in laser printers and should be replaced or cleaned if there are lines or splotches at regular intervals on the print job.

One of the employees in your company calls and complains that text printed on the laser printer smudges easily and is staining hands and cloths. Which of the following, if adjusted or replaced, would BEST fix the printer? Correct Answer: Laser Correct Answer: Fuser unit Correct Answer: Toner hopper Correct Answer: Photoreceptor drum Correct Answer: OPC drum

Explanation After the toner has been applied to the paper, the pater passes through two heated rollers known as the fuser, or fuser unit. The heat and pressure from the rollers fuse the toner particles into the fibers of the paper. If the toner on the finished printed paper is smudging, the most likely issue is that the fuser unit is malfunctioning in some way. Since the text is being printed, the toner hopper is dispensing toner. The photoreceptor and the environmentally friendly version known as the organic photo conductor drums (OPC drums )received the charge from the corona wire. If these parts were not working, the text would not be transferred to the paper. Likewise, if the laser were not working, the image of the text would not be drawn on the photoreceptor drum, and the paper would come out blank.

You've just set up a color laser printer on a customer's Windows workstation. You've connected it to the workstation using a USB cable and have loaded the appropriate drivers. Which of the following are the BEST steps to take next? (Select TWO). Do nothing. Your work is done. Set the printer driver to print grayscale by default to reduce color toner consumption. Edit the printer properties to configure paper tray and other device-specific settings. Verify that it is working correctly by printing a test page. Use the USBTEST utility in Windows to verify that the USB connection is working properly. Use Driver Rollback to make a backup copy of the new printer driver.

Explanation After you install a new printer for a customer, client, or user, configure device-specific settings and then print a test page to verify that the printer is working properly.

Your company needs to print a lot of high-quality black-and-white text documents. These documents need to be printed as quickly and inexpensively as possible. The printer must also have the capacity to perform duplex printing. Which of the following printers BEST meets the printing requirements for your company? Thermal Inkjet Laser Dot matrix

Explanation Although laser printers may cost more to purchase, in the long run, the cost to print black-and-white text (with occasional graphics) will be less per page than an inkjet printer. Dot matrix printers are inexpensive, but they are slow, do not offer two-sided printing, and have a low quality output. Thermal printers typically cost more to purchase and require specialty materials, making them more expensive than a laser printer for the type of work this company requires.

Which connector is used with unshielded twisted pair (UTP) cable? BNC RJ45 AUI DIX

Explanation An RJ45 connector is used with unshielded twisted pair (UTP) cable. BNC and AUI are used with coaxial cables. DIX is an Ethernet protocol.

A few of your employees have complained that their computers sometimes shut down spontaneously. You have noticed that these employees all work in a part of the building where the air condition does not adequately cool the room. These employees also use CPU-intensive programs. You suspect that the spontaneous shutdowns are caused by overheating. Which of the following is the SIMPLEST way to monitor the temperature of the computer's CPU? Placing a thermostat on the CPU. Placing a thermostat on the PC at the warmest location. Viewing the temperature from within the BIOS. Touching the PCs with your hand or fingers.

Explanation An easy way to check the temperature of your computer's CPU is to boot to the BIOS and locate the hardware monitor section. Different BIOS programs have different section labels. Some of the more common labels are H/W Monitor, Status, and PC Health. From within this section, you can view the temperature of your CPU. The other methods listed will not give you an accurate CPU temperature.

A computer was brought into your help desk center for repair. You have been told that it randomly locks up. Which of the following is MOST likely causing this issue? Faulty mouse or keyboard Failing network adapter Overheated processor Loose monitor cable

Explanation An overheated processor is the most likely cause of random system lockups. A loose monitor cable will only affect the display and cause the image to cut out or distort. A faulty mouse or keyboard only causes problems with user input. A failing network adapter will cause networking issues, such as internet connection loss, but the system will still be able to run.

You are a high school student learning about computers and how to build them. As a class project, you have built a new computer. You power on your computer and begin to configure the system. After a short while, you notice smoke coming from the PC, and shortly after that, the computer stops working. After removing the computer case, you see that the CPU and surrounding areas are burnt and very hot. You realize that the costly mistake you made was not using a heat sink. When rebuilding your computer, which of the following cooling systems would MOST efficiently remove heat from the CPU? Passive heat sink, thermal paste, liquid pipes, and fan Passive heat sink with thermal paste Heat sink, thermal paste, and fan Passive heat sink Active heat sink, thermal paste, liquid pipes, and fan

Explanation At a minimum, a heat sink should always be used in conjunction with a fan. The fan's job is to blow air over the heat sink to increase the air flow which, in turn, removes heat from the heat sink faster. Although this is a good solution for many systems, a better cooling system is one that incorporates a heat sink, fan, and pipes filled with water. The heat pipes that are filled with a liquid absorbs heat from the CPU. Doing this actually causes the liquid within the pipe to evaporate. Since vapor is less dense than the liquid around it, the vapor rises towards the heat sink on the other end of the heat pipe. This type of heat sink also includes a fan that cools the vapor, causing it to re-condense back into a liquid, which then drops back down to the CPU on the other end of the heat pipe. This cycle repeats indefinitely to remove heat from the CPU. In all cases, heat sinks should be attached using a thermal paste. Active heat sinks use an electric power to run the fan or any other devices to actively divert heat away from the components. Passive heat sinks have no mechanical parts, making them dependable and easy to install.

You are a PC technician for a national computer retailer. You are asked to build each of the systems listed on the right. You need to use the most appropriate hardware components to ensure that each of these systems will fulfill its intended role. Drag and drop the most appropriate list of components on the left to the system type on the right that needs the component to function fully. (One list of components will not be the most appropriate for any listed system.) Home office server · 2 TB RAID 5-disk array · 600W power supply · No audio adapter · Integrated video adapter Gaming PC · 1000W power supply · 1 TB SATA HD · Dual SLI 6GB PCIe video adapters · 5.1 channel surround sound adapter · Liquid CPU cooler Home theater PC · HDMI output · Compact form factor · 5.1 channel surround sound adapter · TV tuner adapter Virtualization workstation · AMD 12-core 4 GHz CPU · 4 TB SATA HD · 32 GB DDR4 RAM · Hardware-assisted virtualization Thin client workstation · Intel Celeron dual-core 2.7 GHz CPU · 500 GB SATA HD · 2 GB DDR3 RAM · Few or no applications installed Audio/video editing workstation · Intel Core i7 six-core 3.4 GHz CPU · 2 TB SSD SATA HD · 16 GB DDR4 RAM · High-end audio adapter with speaker system · High-end video adapter with dual displays

Explanation Audio/video editing workstation: · Select the most powerful processor that you can afford. Audio and video editing applications require a great deal of processing power. A 64-bit multi-core processor should be the minimum processor considered. · Implement a high-end video adapter with dual displays. Audio and video editing applications require extensive video processing and screen real estate. · Implement a high-end audio adapter and speaker system. · Implement a very large and very fast hard disk drive. Audio and video editing applications require extensive disk space and speed. You may want to consider using an SSD drive instead of a traditional hard disk. Virtualization workstation: · Virtualization hosts require extensive RAM and CPU processing power. Each virtual machine running on the system must share the system processor and RAM; therefore, you need to implement the maximum amount of RAM supported by the motherboard in dual- or triple-channel mode. · A 64-bit multi-core processor should be the minimum processor considered. You may want to consider a system with multiple processors. · Video and audio performance are of secondary concern. Gaming system: · Gaming applications require a great deal of processing power. A 64-bit multi-core processor should be the minimum processor considered. · Gaming applications can cause the systems processor, RAM, and video adapter to generate excessive heat. You should implement a high-end cooling solution to dissipate this heat. · Implement a high-end video adapter with a GPU. Gaming applications require a great deal of video processing. · Implement a high-end audio adapter with a surround-sound speaker system. Home theater system: · Implement a high-end audio adapter with a surround-sound speaker system. · Implement a video adapter with a TV tuner and HDMI output. · To save space, you may want to select a system that uses the Home Theater PC (HTPC) compact form factor. Thin client: · A thin client only needs to be able to connect to a remote desktop session. As such, it needs to meet only the minimum requirements for running Windows locally. · A thin client workstation needs to be optimized to run only very basic applications. Ensure the system has enough processing power, disk space, and RAM to support the applications that will be installed on it. · Install the fastest network adapter supported by the network it will be connected to. Gigabit speeds (or faster) are recommended. This will help ensure that the remote desktop session provides a reasonable end-user experience. Home or small office server: · A home or small office server is typically used for media streaming, file sharing, and printer sharing. As such, you should install the fastest network adapter supported by the network it will be connected to. Gigabit speeds (or faster) are recommended. · You should implement a storage solution that provides both speed and redundancy to protect data. You should consider using a RAID array that uses striping (for performance) along with mirroring or parity (for protection). RAID 5, RAID 1+0, or RAID 0+1 would be good choices. · A 64-bit multi-core processor should be the minimum processor considered. · Implement the recommended amount of RAM for your server operating system in dual- or triple-channel mode.

You have been asked to recommend a printer that will be used in a travel agency. The printer will be used to print airline tickets. Each ticket has four pages (multi-part carbon-based forms), and the same information must show up on all four pages with a single pass of the printer. Which printer type would you recommend? Dye sublimation Ink Jet Impact Laser

Explanation Because dot matrix (impact) printers strike the image onto paper, they are good printers to use when carbon-copy documents are being printed. A dye sublimation printer uses film-embedded dye. Laser printers use lasers and electrical charges to transfer images to paper. Inkjet printers spray ink from ink stored in a reservoir.

You have recently been called to troubleshoot network connectivity problems at a user's workstation. You have found that the network cable runs across high-traffic areas on the floor, causing the cable to wear through and break. You have replaced the cable with a plenum-rated and shielded twisted pair cable. You would like to minimize the problem and prevent it from happening again. Which of the following will BEST protect the cable from further damage? Run the cable through the ceiling area instead of across the floor. Run the cable under the carpet. Encase the cable in a protective shield and secure the cable to prevent it from slipping. Periodically check the cable for kinks and wear. Replace the cable when necessary.

Explanation Because the cable is a plenum-rated cable, you can run the cable through the ceiling area. This is the best method of preventing wear to the cables. The cable shielding will also protect the cable from some electromagnetic interference. However, you should be sure to avoid running the cable directly across light fixtures.

You are building one of your customers a home theater PC (HTPC) to connect to an HDTV and high-definition audio system. The customer is going to be playing mostly Blu-ray movies on the system. Which of the following features should the sound card include? (Select TWO). Line-level in port MIDI support Dolby Digital, DTS support, or SDDS support IEEE 1394 port S/PDIF output

Explanation Because the customer is using the computer as an HTPC, the sound card should include support for high-quality sound output, such as Dolby Digital, DTS, or SDDS support. In addition, the sound card should support a digital output, such as S/PDIF. Line-level in (line in) ports are used to receive analog audio signals from musical instruments or CD players, which is not necessary for this computer. IEEE 1394 ports are used to connect FireWire devices. MIDI support, which allows digital synthesizer recording, is also unnecessary for this particular computer.

After removing the printed paper from your laser printer, the toner smudges and can be wiped off in places. Which of the following is the MOST likely problem? Correct Answer: Primary corona Correct Answer: Print drum Correct Answer: Secondary corona Correct Answer: Fuser rollers

Explanation Because the fuser rollers heat and press the entire paper, dirty fuser rollers are the most likely problem. The other components do not touch the paper directly.

You have just finished upgrading the 250 W power supply in your desktop computer to a 450 W power supply. Now the BIOS doesn't recognize one of the hard disk drives in the system during POST. Which of the following troubleshooting steps is the BEST to try first? Replace the power supply. Make sure that the hard disk is connected to the power supply. Use the switch on the power supply to switch from 110 volts to 220 volts. Reconfigure the hard disk to use the higher-wattage power supply using jumpers on the drive. Manually enter the hard disk parameters in the BIOS.

Explanation Because you have just made a system change, you should check items related to the change you have made. In this case, check to make sure that power connectors are plugged in.

You have just finished upgrading the CPU in your desktop system. After running for about 15 minutes, the system spontaneously shuts down. Which steps should you take to begin troubleshooting the issue? (Select TWO). Remove any unnecessary components and run the system. Check the CPU fan power. Check the power supply voltage switch. Replace the power supply. Check the thermal shutdown threshold in the BIOS.

Explanation Because you have just replaced the processor, the most likely cause of the problem is related to the CPU. System lockups and restarts can be caused by an overheated processor. Make sure that the CPU fan is running and that you have used thermal paste between the CPU and the heat sink. Also, check to see what the thermal shutdown rating is for the new CPU and verify that the thermal shutdown threshold is set in the BIOS accordingly.

You recently upgraded the processor in your laptop computer to a faster processor. The computer runs, but after you use it for several minutes, it shuts down unexpectedly. Which of the following steps would you MOST likely perform first to troubleshoot this issue? Make sure the case fans are plugged in. Test the memory for errors. Use a multimeter to test the inverter. Charge the battery and then run the laptop from the battery.

Explanation Because you have recently replaced the processor, check things related to the processor or to items you had to disconnect and reconnect when replacing the processor. In addition, periodic shutdowns are often caused by overheating. Because of the limited space in a notebook case, the processor uses a heat pipe to pull heat toward the side of the case, where a small fan can vent the heat from the case. Make sure the system case fans are plugged in and work properly.

Joe is working on a design team that uses a computer-aided design (CAD) system. Joe has been complaining that it takes too long to perform tasks such as panning, rotating, and zooming. You have been asked to look at Joe's computer and to make any changes required to increase Joe's productivity. Which of the following changes would BEST meet Joe's needs? Increase the memory for the onboard video embedded in the motherboard. Add a second high-capacity hard drive to Joe's computer. Add a very high-end video board. Configure Joe's workstation with dual monitors.

Explanation CAD applications need workstation graphics cards that can manipulate complex geometry and computing. Therefore, the best solution presented is to add a very high-end video board with a fast GPU. The GPU's job is to process all graphical information and output it to a display, which will increase performance for CAD-type systems. The onboard embedded video will not be sufficient for high-end applications such as a CAD system. Adding a second drive or monitor will not increase the performance of the issues Joe is describing.

A technician is installing a cable modem that supplies internet connectivity for a home office. Which of the following cabling types would be used to connect the cable modem to the cable wall outlet? CAT 6a RG6 Multimode fiber CAT 5e

Explanation Cable modems are connected to a cable wall outlet using coaxial cabling. RG6 is the most common coaxial cable used for this connection. CAT 5e, CAT 6a, and multimode fiber cables can't be used to connect cable modems to a cable wall outlet.

Which of the following accurately describes case fans? (Select TWO). Do not have a specific design for moving air. Create a pressurized system inside the case. To reduce dust and debris, they should all exhaust hot air. Only necessary on high-end gaming systems. Pull cool air from the front and blow hot air out the back.

Explanation Case fans create a pressurized system that allows air to flow through the case in a specific way. · Intake fans (at the front) pull air inside the case to cool components. · Outtake fans (at the back and top) exhaust warm air from inside the case. Because all computers generate heat, case fans are necessary on even basic computers to properly dissipate heat and prevent overheating issues. Even though intake case fans will pull in dust and debris, having all the case fans exhaust air would be extremely inefficient and could cause overheating issues. Case fan filters can be installed if dust and debris is an issue.

You would like to install Windows on a computer that previously had another operating system installed on it, but you are not sure if the audio card is compatible. The installed audio card is a SoundMax D1371 (PCI) card. Which of the following BEST describes the next step you should perform? Check the manufacturer website for compatibility information. View the device manager and check the current driver details. Change from a PCI card to USB. Use a card known to be compatible with Windows.

Explanation Check the manufacturer website to verify compatibility between specific hardware devices and the operating system. While you could also go to the HCL, you are likely to get better compatibility information from the manufacturer.

A technician is replacing a cable modem. The cable from the cable company has an inner solid wire conductor and an outer mesh conductor separated by PVC plastic insulation. Which of the following network cable types is being used? Straight-through cable Twisted pair cable Fiber optic cable Coaxial cable

Explanation Coaxial cabling has an inner conductor that is a solid wire made of copper or copper-coated tin. The outer mesh conductor, or shield, is made of aluminum or tin-coated copper. A PVC plastic insulator surrounds the inner conductor and insulates the signal from the mesh conductor. Twisted pair cabling consists of pairs of insulated copper conductors that are twisted together to minimize crosstalk. Fiber optic cabling carries light signals through a glass or plastic core surrounded by cladding and sheathing. A straight-through cable is a twisted pair patch cable.

Which of the following are advantages of using fiber optic cabling for a network, as opposed to other types of cabling? (Select TWO.) Increased flexibility Immunity to electromagnetic interference Greater cable distances without a repeater Faster installation Lower installation cost

Explanation Compared to other types of cabling, fiber optic cabling allows greater cable distances without a repeater and is immune to electromagnetic interference. However, installation costs more and takes longer. In addition, fiber optic cabling is much less flexible than other cabling.

To improve system performance, you have configured a motherboard to run with a higher multiplier than what the CPU is specified to use. Since doing this, the system has become unstable and crashes frequently. To restore system stability, which of the following should be completed? Back off on the overclocking settings until the system runs in a stable manner. Replace the CMOS battery to make sure the real-time clock has the correct time. Make sure the BIOS firmware supports the overclocking settings you're using. Make sure the switch on the power supply is set to the correct voltage.

Explanation Configuring a motherboard to run with a higher multiplier than what the CPU specifies is called overclocking. If the system becomes unstable and crashes frequently, the multiplier may be set higher than the CPU can handle. To resolve this issue, lower the multiplier until the system becomes stable again. The real-time clock on the motherboard is not a factor in this scenario and has no role in overclocking. If the power supply is set to the wrong voltage, system components can be damaged, but not cause the behavior described in the scenario. BIOS firmware is not a factor in overclocking issues.

You want to configure your computer so that a password is required before the operating system will load. What should you do? Require complex passwords in the local security policy. Configure a user password in the BIOS/UEFI. Configure chassis instruction detection. Configure an administrator password in the BIOS/UEFI.

Explanation Configuring a user password in the BIOS/UEFI requires that a valid password is entered before the operating system will load. When an administrative password is set, it must be entered in order to access the firmware setup program. Chassis intrusion detection helps you identify when a system case has been opened. Password settings in the local security policy control passwords associated with user accounts that are configured within the operating system. These passwords are used after the system loads the operating system, not before.

The manufacturing department consists of 50 employees. Due to the number of employees in this department, the company cannot afford to have a printer for each user. Your company has purchased a new and very expensive laser jet printer for this department's use. This printer needs to be configured so all users in the department have the ability to print to this device from their own computers. Which of the following printer connections would BEST facilitate multiple user access? Serial Parallel Network USB

Explanation Connecting the printer to a network cable allows users from multiple locations to connect to the printer. Although a printer can be connected to a PC using the other types of connections, they would not grant access to all users. A network cable will connect the printer to the same router that the other computers in the department are using.

Which of the following will ensure optimal system cooling? (Select THREE). Remove the side panel on the case. Remove unused expansion slot covers to increase air flow. Leave space between the case and any walls or obstructions. Keep the ambient temperature below 80° F. Bundle cables together and secure unused cables to the case. Stack hard drives next to each other.

Explanation Consider the following recommendations to ensure optimal system cooling: · Keep the case free of dust and debris. Excess dust can restrict airflow and prevent proper heat transfer. · Reduce the number of airflow obstructions. o Employ proper cable management (bundle cables together and secure unused cables to the case). o Space out multiple hard disk drives instead of stacking them next to each other. · Maintain appropriate ambient temperatures. Optimal ambient temperatures are between 60 and 80 degrees Fahrenheit. · Ensure proper ventilation; leave space between the computer and any walls or desks. · Preserve negative pressure inside the case by keeping all covers and shields installed (unused expansion cards, I/O shield, front drive bays).

Which of the following BEST describes a key feature of the DisplayPort interface used for connecting video monitors to computers? DisplayPort can send both video and audio signals over the same cable. DisplayPort is electrically equivalent to DVI and HDMI. DisplayPort carries both analog and digital signals. DisplayPort utilizes the same connectors as HDMI.

Explanation DisplayPort is an alternative to HDMI. Like HDMI, DisplayPort can send both video and audio signals over the same cable (if audio is supported by the video card and monitor). DisplayPort uses a digital-only signal. DisplayPort uses a different signal format than DVI or HDMI. However, DisplayPort supports sending DVI or HDMI signals over the same port using a simple adapter. DisplayPort uses a different connector than HDMI. The connector is asymmetrical and has only one side beveled.

Which type of printer uses an inked ribbon? Laser Dot matrix Dye sublimation Ink jet

Explanation Dot matrix printers use an inked ribbon. The printing mechanism strikes the ribbon to put ink onto the paper. A dye sublimation printer is a non-impact printer that uses film-embedded dye. Inkjet printers are quiet, non-impact printers that store ink in a reservoir. Bubble jet printers are the most popular form of inkjet printers. Laser printers use lasers and electrical charges to transfer images to paper.

You work as the IT administrator for a small news station. Jill, an employee in building 2, works in the audio/video editing department and would like to increase her productivity. For example, she would like to be able to run multiple programs simultaneously and be able to compare video clips side-by-side. Which of the following configuration changes would provide the BEST solution for Jill? Provide Jill with a second computer. Grant Jill access to a remote workstation. Configure Jill's computer to have dual monitors. Configure Jill's computer with a higher resolution.

Explanation Dual monitors have been proven to increase productivity by 20-30 percent. Providing Jill with a second monitor will allow her to easily compare her video clips side-by-side by placing different clips on each monitor. Adding a second computer would be very expensive and would make Jill's work more difficult because of the challenges of working on separate computers. Configuring Jill's computer with a higher resolution may help if it is available, but she would still be limited in the amount of space available to view and work with her files.

Which of the following are true regarding a dual-channel memory bandwidth configuration? (Select TWO). Bandwidth is increased by 5-15%. The memory controller must support dual-channels. Bandwidth is doubled. Only DDR2 memory is supported.

Explanation Dual-channel systems increase the memory bandwidth by only 5-15%, although it does have a 100% theoretical increase. Dual-channel support is mainly a function of the motherboard, not the memory itself. DDR, DDR2, and DDR3 can all work in dual-channel systems (depending on the memory supported by the motherboard); a triple channel system can only use DDR3.

Jan, a user in the documentation department, printed a very large document. When Jan's boss walked by the printer and saw the large stack of papers, he called you and asked if you could configure the printer to help reduce the amount of paper used by her department. Which of the following printer configuration would BEST facilitate the manager's request? Duplexing Orientation Collating Faxing

Explanation Duplexing is the process of printing on both sides of the paper, which could reduce the amount of paper used by about 50%. Page orientation is the direction in which a document is printed. The two basic types of page orientation are portrait (vertical) and landscape (horizontal). Faxing is the telephonic transmission of scanned printed material (both text and images), normally to a telephone number connected to a printer or other output device. Collating is gathering and arranging individual sheets or other printed components into a pre-determined sequence.

Which of the following is a wired networking method most commonly used today by desktop PCs and other network devices to connect to a local area network? Ethernet Bluetooth 802.11n ArcNet Token Ring

Explanation Ethernet is a wired local area network (LAN) standard. Most laptops and desktop computers have built-in Ethernet network ports. Bluetooth is a wireless standard that allows the creation of short-range Personal Area Networks (PANs). Token Ring and ArcNet are older wired network standards that are nearly obsolete and not commonly used in a modern LAN. 802.11n is a wireless standard used in local area networks.

While changing the toner cartridge in your laser printer, you accidently spill toner in and around the printer. Which of the following is the BEST method for cleaning up the spilled toner? Correct Answer: Use a household vacuum. Correct Answer: Wipe up most of the toner using a warm, wet cloth, and then vacuum. Correct Answer: Scoop up large portions and then use a static cloth to wipe up the remaining toner. Correct Answer: Use an anti-static micro-filtering vacuum.

Explanation Excess toner should be removed from a laser printer with an anti-static and micro-filtering vacuum. A regular vacuum will build up an electrostatic charge from the toner, which could shock you, damage the printer, or damage your vacuum. Using any kind of liquid to clean up a toner spill could cause damage to the printer and may permanently adhere the toner to the printer. Although you should try to collect as much of the toner as possible using some type of scoop, doing this and wiping the spilled toner will not clean the printer thoroughly. If you do use a cloth, it should be a static-free cloth.

A technician works in a factory where there is a significant amount of EMI (electromagnetic interference) emissions. Due to this EMI, several of the computers that control the factory's manufacturing machines are unable to communicate with the network. Which of the following network cabling options would be the BEST for reestablishing network communications? Cat 5e Cat 7 Fiber optic Coaxial

Explanation Fiber optic cabling is totally immune to EMI and provides the highest level of EMI protection. Coaxial cabling is highly resistant to EMI, but is not as good as fiber optic cabling. Due to the number of twists, Cat 7 cabling provides better protection from EMI than Cat 5e cabling. Cat 7 can also be procured with added EMI shielding. However, Cat 7, with or without shielding, is not as good as fiber optic cabling. Cat 5e provides good protection from EMI. However, Cat 7, coaxial, and fiber optic cabling provide better protection.

You are building a new computer that will contain two hard disks. To provide increased performance, you have decided to configure the drives using RAID technology. Which of the following will BEST meet your needs? RAID 0 RAID 5 RAID 1 RAID 2

Explanation RAID 0 (striping) uses two or more disks and provides an increase in performance, but not fault tolerance. RAID 1 (mirroring) uses two disks to provide fault tolerance, but not an increase in performance. RAID 5 uses a minimum of three disks and provides both fault tolerance and an increase in read performance.

You have been using the same computer for several years. To extend its service life, you decide to upgrade the processor. You check the motherboard documentation and purchase the fastest processor supported by the motherboard. However, when you start the computer, it beeps regularly, nothing is displayed on the screen, and it doesn't start. While troubleshooting this computer, which of the following would be BEST to try first? Update the UEFI firmware. Press F8 while booting the computer. Return the CPU for a new one. Upgrade the motherboard.

Explanation Flashing the BIOS or UEFI firmware is often required to upgrade system components that are part of the motherboard, such as upgrading to a faster processor. If the motherboard documentation lists the processor as supported but it is not correctly recognized, updating the BIOS or UEFI firmware to the latest version may fix the problem. Pressing F8 while the system is booting displays the advanced boot menu on older versions of Windows. Replacing the motherboard is probably not required because the motherboard was working correctly previously and the documentation indicates that the new CPU is supported. You would only replace the CPU if you determined that it is faulty.

You have been using the same computer for several years. To improve performance, you decide to upgrade the processor. You check the motherboard documentation and purchase the fastest processor supported by the motherboard. However, when you try to start the computer, it beeps regularly, and nothing is displayed on the screen. Which of the following actions would MOST likely rectify this issue? (Select TWO). Reinstall the old processor in the motherboard. Return the CPU for a new one. Press F8 while booting the computer. Verify that the CPU fan is connected to the motherboard. Flash the UEFI firmware.

Explanation Flashing the BIOS or UEFI firmware is often required to upgrade system components, such as upgrading to a faster processor. If the motherboard documentation lists the processor as supported but it is not correctly recognized, updating the BIOS or UEFI firmware to the latest version may fix the problem. Before you can do this, you must reinstall the old processor in the system to get it back up and running again. Pressing F8 while booting the system displays the advanced boot menu on older versions of Windows. Replacing the motherboard probably isn't required because the motherboard was working correctly with the older CPU and the documentation indicates that the new CPU is compatible. Only replace the CPU if you have determined that it is faulty.

A customer wants to add an additional video card to her computer so she can play the latest computer games. As a result, this system will now have a multi-GPU configuration. Which of the following statements are true? (Select TWO). Linking only shares memory resources, not GPU resources. Linking video cards also provides additional video output ports. An SLI video card can be linked with a CrossFire video card. For the best performance, both video cards should be identical. The motherboard should support either SLI or CrossFire.

Explanation For increased performance, especially in games, multiple video cards can be linked together using a special bridge clip. This allows multiple GPUs to draw a single screen. For the best performance, both video cards should be identical. In addition, the motherboard must be compatible with either SLI (used by NVIDA cards) or CrossFire (used by AMD cards). Because each cards is sharing the processing load, the memory banks and GPU in both video cards are being used. In a multi-GPU configuration, the secondary (bottom) card's display connectors are typically disabled.

You are in the process of building a new computer. You would like to configure your computer to use Crossfire to improve performance when playing your favorite game. Which of the following will be part of the configuration process? Purchase two identical video cards. Purchase a video card that supports the HDMI standards. Purchase a video card that supports HDCP. Purchase a video card that supports the DVI standards.

You are in the process of building a new computer. You would like to configure your computer to use SLI to improve performance while playing your favorite game. Which of the following will MOST likely be part of the configuration process? (Select THREE). Purchase two graphics cards with SLI and similar specifications. Purchase a 7200 rpm or better hard drive. Purchase a motherboard with integrated video and an add-on card that supports the VGA standards. Purchase dual 1200-watt power supplies. Purchase a motherboard with two (or more) PCIe x16 slots. Purchase a motherboard with integrated video and an AGP 8x slot. Connect at least one monitor to the graphics card.

Explanation For increased performance, especially in games, you can install multiple video cards and link those cards together so that multiple GPUs draw a single screen. Scalable Link Interface (SLI) from NVIDIA and CrossFireX from AMD are two different methods for linking video cards. In most cases, you will need to install identical video cards, or at least video cards with very similar specifications. Cards are linked using a special bridge clip or through software (depending on the implementation). Both the motherboard and the video cards must support the selected method (either SLI or CrossFireX). The motherboard must have at least two 16x PCIe slots. Some motherboards are able to link an onboard graphic controller and video card installed in a single PCIe slot. Connect the monitor to an output port on the first video card. VGA is an older video technology and would not be used for SLI. Graphic card power requirements, even for SLI, would not require dual 1200-watt power supplies. Hard drive speed is independent of SLI.

You are in the process of purchasing several new computers to replace broken or outdated computers. After much research, you have determined to purchase computers that use AMD sockets. Which of the following BEST describes an AMD and why you would select this option? (Select TWO). Typically, an AMD uses a Pin Grid Array (PGA) socket type. Typically, AMD chips are less expensive. Typically, an AMD uses numbers to represent the number of pins on the socket. Typically, an AMD has a larger market share. Typically, an AMD uses a land grid array (LGA) socket type.

Explanation Generally speaking, CPUs manufactured by AMD tend to be less expensive than those manufactured by Intel, but they also don't perform quite as well as Intel CPUs. AMD chips typically use a pin grid array (PGA) socket type and do not include a number in their name to represent the pins used on the chip.

The CEO of your small company has asked you to connect his laptop computer to the small conference room LED TV. The CEO will be showing a new promotional video that demonstrates the new company strategy through images and sound. Which of the following cable types would work BEST for connecting his laptop to the display? Composite DVI HDMI VGA

Explanation HDMI is the default cable standard for newer electronic devices, such as Blu-Ray players and LED TVs. HDMI can carry both digital video and audio signals. Most modern computers include an HDMI port. DVI and VGA only supports video signals. Composite cables support video, but not audio.

Match each storage device type on the left with its description and benefits on the right. A thick magnetic disk made of aluminum platters. Uses read/write heads to access data stored on the platters. Hard disk drive (HDD) A flash device and storage capacity similar to a small hard drive. Solid state drive (SSD) Uses lasers to read and write information stored in the form of pits in their reflective coating. Optical disc Providesup to several terabytes in storage capacity, and cost per megabyte is very low. Hard disk drive (HDD) Faster than other devices. No moving parts. Lasts longer than other storage devices. Solid state drive (SSD) Ideal for music and video. Portable and cheap with a long shelf life. Optical disc

Explanation Hard disk drives (HDD) are thick magnetic disks made of aluminum platters. They use read/write heads to access data stored on the platters. They provide up to several terabytes of storage capacity, and their cost per megabyte is very low. A solid state drive (SSD) is a flash device with storage capacity similar to a small hard drive. They are faster than other devices. They have no moving parts and last longer than other storage devices. Optical discs use lasers to read and write information that is stored in the form of pits in their reflective coating. They are ideal for storing and playing music and video. They are portable and cheap and have a long shelf life.

You are building an HTPC (home theater PC) that will be connected to an HDTV. You want to be able to play Blu-ray movies on the HTPC. Which of the following features should your video card and HDTV MOST likely support? DirectX OpenGL HDCP HDTV

Explanation High-bandwidth digital content protection (HDCP) is a method for protecting digital media, such as Blu-ray movies, from being intercepted and copied. When playing protected content from a PC, the optical device, video card, and external display must all support HDCP. Both DirectX and OpenGL are API collections that are used to improve graphic, animation, and multimedia creations. HDTV is a high-definition signal used to broadcast digital TV signals.

Anna has been backing up her data on a hot swappable drive mounted in an external hard drive docking station. This docking station holds two drives. Anna would like to exchange one of the drives with a drive of higher storage capacity. Which of the following is the BEST method for replacing the drive? Remove and replace the drive after using the Safely Remove Hardware feature to shut down the device. Remove and replace the drive without powering off the computer. Power off the computer. Remove and replace the drive. Power on the computer and test the drive. From Control Panel, use the Disk Management tool to prepare the bad drive for ejection.

Explanation Hot swappable devices (such as a hard disk) are devices that you can add or remove without shutting down the computer. When you connect a hot swappable device, Windows automatically detects the device, configures a driver (if one is not already installed), and enables the device. Although you can remove and replace the drive without powering off the compute, you should always use the Safely Remove Hardware feature to shut down the device before unplugging it from the system. Doing so will ensure that the data on the device is not corrupted. Using the Disk Management tool is not required.

When using Intel chips, which of the following features BEST allows a single processor to run two threads in parallel instead of processing single threads linearly? Hyper-threading Multi-processing Dual core Overclocking

Explanation Hyper-threading allows a single processor to run threads in parallel, as opposed to processing threads linearly. Multi-processing is an operating system's ability to use multiple CPUs. Overclocking causes the processor to operate at a higher speed. Dual Core is a type of processor that offers better performance by combining two or more independent processors into a single integrated chip.

Your laser printer prints a vertical black line on every page. You change the toner cartridge, but the problem does not go away. What is the MOST likely problem? Correct Answer: A corona wire is dirty. Correct Answer: The photosensitive drum is wearing out. Correct Answer: The paper is poor quality. Correct Answer: The fuser assembly is damaged.

Explanation If a corona wire is dirty, it might not create a uniform charge. As a result, the toner might not be attracted correctly to the photosensitive drum or paper. A vertical stripe is a typical symptom of this problem. Be careful when cleaning a corona wire because they are delicate.

One of the users in your company notices some strange behavior on his computer. After describing what is being seen, you do a little research and determine that the best course of action is to update the UEFI firmware. Before performing the upgrade, if possible, which of the following is the BEST action to take? Upgrade the processor. Connect the computer to a UPS. Password protect the system. Change the motherboard battery.

Explanation If possible, you should connect the computer to an uninterruptible power supply (UPS) before updating the UEFI firmware. Losing power during the update process can cause catastrophic problems. Most BIOS/UEFI setup programs provide an option to save existing settings to a file; you should also back up your existing UEFI settings before you update. Upgrading the processor, changing the motherboard battery, or setting a system password are not required prior to updating the UEFI firmware.

If a printer is not Wi-Fi capable, how can it be set up to provide the most reliable wireless printing? Share the printer from a computer that has a wireless network connection. If the printer is Ethernet capable, it can be connected to the network through a wireless router. If the printer has a USB port, plug in a USB wireless adapter. If the printer is Bonjour-enabled, it can be discovered by workstations using the Bonjour service.

Explanation If the printer is not Wi-Fi capable but has an Ethernet port, it can be connected to the network through a wireless router. Just use an Ethernet cable to connect the printer to a port on the wireless router. Users on the same network as the wireless router will be able to send jobs to the printer as if the printer has a wired connection. (All users will have to install the driver for that printer on their workstations.) The wireless router option is more reliable than connecting the printer to a workstation that has a wireless connection to the network and then sharing the printer from that workstation. The workstation performs the same role as the wireless router, but the workstation will be shut down a lot more often than the wireless router would be. A USB wireless adapter will not provide a wireless connection for a printer because the adapter needs to be connected to a device with an operating system and the capacity to install drivers. Bonjour can only be used for wireless printing if the printer is already using a Wi-Fi connection to the network.

You are configuring a new system, and you want to use a RAID 0 array for the operating system using SATA disks and the RAID functionality built into the motherboard. Which of the following BEST describes the action you will take as part of the configuration? Set master/slave jumpers on the hard drives. Load the RAID drivers during operating system installation. In the BIOS, set the disk mode to IDE. Set the disk mode to AHCI in the BIOS.

Explanation If you are using an onboard RAID controller with SATA drives, edit the CMOS settings and identify the drive type as RAID. This tells the system to load the onboard BIOS for accessing the connected drives. If you want to install the operating system on a RAID array, you need to manually load the controller driver so that Windows can see the RAID array.

Consider the external ports for a typical PC system (pictured below). Drag the port type on the left to the letter on the right that best identifies it. (Each type can be used once.) A HDMI B Thunderbolt C IEEE 1394 D USB E VGA F DVI G RJ45 H RJ11 I Fiber S/PDIF J Audio Jack

Explanation In this example, the computer back panel has the following ports: · HDMI - connects HDMI display devices. · Thunderbolt - combines PCI Express (PCIe) and DisplayPort signals into a single interface. · IEEE 1394 - connects devices that require fast communication speeds. · USB - connects external USB devices (such as a keyboard, mouse, printer, or storage device). · VGA - connects VGA display devices. · DVI - connects DVI display devices. · RJ45 - connects the computer to an Ethernet network. · RJ11 - used by telephones and modems to send analog signals. · Fiber S/PDIF - sends a digital audio signal to high-end audio devices, such as home theatre systems. · Audio jacks - connects analog audio devices (such as speakers, headphones, and microphones).

You have a computer with three hard disks. A RAID 0 volume uses space on Disk 1 and Disk 2. A RAID 1 volume uses space on Disk 2 and Disk 3. Disk 2 fails. Which of the following is true? Data on both volumes is still accessible. Data on both volumes is not accessible. Data on the RAID 0 volume is accessible; data on the RAID 1 volume is not. Data on the RAID 1 volume is accessible; data on the RAID 0 volume is not.

Explanation In this scenario, Disk 2 is shared between both volumes. If Disk 2 fails, the RAID 1 volume is still accessible because RAID 1 (mirrored) volumes can sustain a loss of a single disk. The data on the RAID 0 volume is not accessible. RAID 0 uses striping, which distributes the data evenly between multiple disks. If a single disk fails, the entire volume is lost.

You have a computer with a Pentium 4 CPU and two PC-2400 DDR modules. The motherboard has room for two additional memory modules, and you'd like to install two PC-4000 modules. Which of the following statements is true? All memory will operate at 500 MHz. Half of the memory will operate at 300 MHz, and the other half at 500 MHz. All memory will operate at 300 MHz. You cannot mix memory modules with different ratings.

Explanation In this scenario, all memory will operate at 300 MHz. When you mix memory with different speed ratings, all memory will operate at the slowest frequency. Memory can operate at a frequency lower than its rating. The only way to get memory to operate at a higher frequency is to overclock the memory. However, memory is tested and rated at the highest frequency at which it is stable. While you can likely get some small performance gains through overclocking, it is unlikely that you will be able to push the PC-2400 memory up to PC-4000 and still have a stable system.

You have installed a new computer with a quad-core 64-bit processor, 6 GB of memory, and a PCIe video card with 512 MB of memory. After installing the operating system, you see less than 4 GB of memory showing as available in Windows. Which of the following actions would MOST likely rectify this issue? Disable the AGP aperture in the BIOS. Install a 64-bit version of the operating system. Flash the BIOS. Update the memory controller driver in Device Manager.

Explanation In this scenario, the most likely cause is the operating system being a 32-bit operating system. You must use a 64-bit operating system to use memory above 4 GB. The AGP aperture is a method for sharing system memory with an AGP video card instead of PCIe. With shared memory, some of the memory is used by the video card and is not available for the system. You do not update memory controller drivers.

Your motherboard has two memory slots and supports a maximum of 8 GB of RAM. You are using a 32-bit version of Windows. After installing two 4 GB modules and booting your system, you find that Windows only recognizes 3.5 GB of RAM. Which of the following would MOST likely fix this issue? Reboot the computer and run memory diagnostic tests on the memory. Make sure that both modules are seated properly in their slots. Change the memory timings in the BIOS to a slower (higher) setting. Return both modules for a replacement. Upgrade to a 64-bit version of Windows.

Explanation In this situation you are using a 32-bit version of Windows which can only address a maximum of 4 GB of RAM. Some of the 4 GB is used by drivers, so it only reports 3.5 GB of system RAM. Upgrading to a 64-bit version of Windows should fix the problem. The BIOS should display the total amount of system memory during POST. If it does not count the proper amount of memory, verify that the memory is inserted correctly. In most cases, you do not need to change the memory timings. When you do, it is typically because the system is unstable or crashes. Testing memory helps you identify when specific memory storage locations are going bad. Device Manager does not enable memory the BIOS doesn't recognize.

Which of the following terms describes a PC card that you can insert and remove without rebooting the computer? Plug-and-play Hot play AT attachment Hot swappable

Explanation Inserting and removing PC cards without rebooting the computer is called hot swapping. This feature is also called dynamic reconfiguration. Plug-and-play devices are automatically detected by the system and the driver is automatically loaded. Unless the bus and the device is hot swappable, plug-and-play devices should be added or removed with the system shut down. AT attachment (ATA) is the standard interface for transferring data from storage devices such as hard disk drives and optical drives.

Which of the following devices would you add to a computer if you needed to take inventory at a retail store by scanning the UPC symbols on products? Trackball Bar code reader Scanner Touch screen

Explanation Installing a bar code reader will allow you to take inventory at a retail store by scanning the UPC symbols on products. A scanner is used to scan documents. A touch screen is an interactive monitor for a computer. A trackball is a type of mouse.

A customer would like you to install a high-end video card suitable for gaming. Your installation and configuration SHOULD include which of the following? (Select THREE). Add additional RAM to your computer to accommodate the new card's demands. Disable power to the integrated graphics. Install new the video drivers from CD and then install updated drivers from the internet. Link the integrated graphics to the new high-end video card using the bridge clip. Configure the PC to use the integrated graphics if available and needed. Ensure that the video card is compatible with the expansion slot. Disable the integrated graphics in all cases so they do not interfere with the new video card.

Explanation It is imperative that you always ensure that the video card is compatible with the expansion slot in which the video card will be installed. In some cases, you may have to disable the integrated graphics. However, if possible, you should configure the computer to default back to the integrated graphics if the new high-end graphics card fails or is removed. Otherwise, you may not be able to access the BIOS/UFI firmware to change the computer back to the integrated graphics. Some high-end graphic cards may require a connection to the power supply, but you do not need to disable power to the integrated graphics. You typically only need twice as much system memory as your graphics car has VRAM. Since this computer has 16GB RAM and the card is only 4GB, no additional RAM is required.

You want to build a computer that can stand upright on a desk and takes up the least amount of space possible. Which case type should you select? Mini-ITX tower Micro-ATX slim tower ATX mid-tower HTPC

Explanation Micro-ATX slim towers are designed to be able to stand upright on desks, reducing the amount of space they require. An ATX mid-tower case would take up a considerable amount of space on a desk and are not designed to be small. While Mini-ITX towers can sit on desks, they take up more space than a Micro-ATX slim tower that is designed to stand upright. HTPC cases are design to be used with TVs and home theatre systems.

Which of the following motherboard form factors BEST allows for low-consumption power supplies? Mini-ITX EATX NLX microATX

Explanation Mini-ITX motherboards are designed for low-power, small, form factor computers. Some Mini-ITX motherboards are designed to be used with 100 watt power supplies.

Use the above diagram to match the case type labels on the left with their corresponding cases, identified by letters on the right. A Mini-ITX Tower B Micro-ATX Slim Tower C Micro-ATX Tower D ATX Mid-Tower E ATX Full-Tower

Explanation Mini-ITX towers are designed to house Mini-ITX motherboards. They are typically smaller than Micro-ATX towers. The ITX form factor was designed for low-power, small, form factor (SFF) computers. The most common ITX form factor is the Mini-ITX form factor. Mini-ITX towers are often used with home theaters PC (HTPCs). Micro-ATX slim towers are typically half the width of a Micro-ATX tower and are designed to lay flat or upright. Micro-ATX towers are smaller cases designed to be placed on desktops. Micro-ATX towers typically only have one drive bay and are compatible with the micro-ATX and Mini-ITX form factors. ATX mid-tower cases are slightly smaller than ATX full-tower cases. Mid-tower cases have fewer external and internal bays. ATX mid-tower cases are compatible with the Standard ATX, microATX, Mini-ITX, and some EATX form factors. ATX full-tower cases are the largest computer cases. Full-tower cases have a lot of space for external and internal components. ATX full-tower cases are compatible with the Standard ATX, microATX, and EATX form factors. The ATX (advanced technology extended) form factor is the most commonly used form factor. Because of its popularity, several variants of the ATX form factor exist. Each variant has different specifications for dimensions and number of expansion slots. However, all ATX variants share the following characteristics: · Back plate measurements (6.25" x 1.75") · Power supply specifications as follows; 24-pin ATX power connector, on/off switch runs from the case to the motherboard, and soft-power control (OS can turn the computer off) · Expansion slot locations and spacing (0.8" between slots) · Mounting hole locations · CPU location (top of board near power supply)

You are helping a customer over the phone. The customer needs to connect a monitor that uses a digital interface. Which port should you instruct her to look for on the back of her PC? SVGA DB-15 3-row Serial DB-15 DVI USB

Explanation Modern digital monitors use a DVI connector (typically DVI-D or DVI-I). Serial DB-15 connectors are used for external serial devices such as modems. DB-15 3-row connectors are used to connect older analog SVGA monitors. USB ports are used to connect a variety of devices, but not a monitor.

Which of the following is the most common method for removing RAM from a motherboard? Move the tabs holding the RAM out of the way; pull straight up to remove the RAM. Pull the RAM module up from one corner and then twist to release the other corner. Tip the RAM module at a 45-degree angle while pulling on it. Remove the screw from the one side; pull straight up to remove the RAM.

Explanation Most RAM is held in place with small tabs on either end. Push the tabs down to rotate them back and then pull the RAM straight up.

You are installing a high-end PCIe x16 video card in a new computer. The video card has connectors for two displays. The card also has dual fans to cool the unit. Which of the following will MOST likely be part of the installation? Connect a CrossFire bridge cable to the video card. Enable the motherboard's integrated graphics in the BIOS. Connect a 6- or 8-pin power connector to the video card. Enable the video card's second monitor connector in the BIOS.

Explanation Most high-end PCIe x16 video cards require a special 6-pin or 8-pin power connector for additional power. Be sure to connect the power after inserting the card in the system and prior to turning the system on. If the motherboard has integrated graphics, it should be disabled in the BIOS when installing a dedicated video card. CrossFire bridge cables are used when installing two video cards in a multi-GPU configuration. Multiple display connectors on a video card do not need to be configured or enabled.

Your company has decided to use only SATA drives in their systems. Which of the following is true of MOST newer SATA drives? They can be added to or removed from a system without shutting down the computer, but they must be enabled from Device Manager. After you install the latest driver from Device Manager, they can be added to or removed from a system without shutting down the computer. They can be added to or removed from a system without shutting down the computer. They can be plugged into a system without shutting down the computer, but not removed without shutting down.

Explanation Most newer SATA drives are hot swappable, which means: · They can be added and removed without shutting down the computer. · Windows automatically detects the device, configures a driver (if one is not already installed), and enables the device.

Your company relocated you from the United States to their United Kingdom office in London. You brought your personal computer with you and are in the process of setting it up. Your computer was previously configured to receive 115 VAC, but the electricity in London uses 230 VAC. Which of the following would allow your computer to run on 230 VAC? Inspect the power supply unit for a manual voltage switch and move it to 230 VAC otherwise no action is necessary. Purchase a new power supply that is compatible with 230 VAC. Edit the BIOS and modify the voltage input setting. Purchase a voltage converter and plug your computer into the converter box.

Explanation Most power supplies have the capacity to receive either 115 and 230 volts of power just by toggling a switch on the power supply case. Modern power supplies support automatic voltage switching and no action is necessary. You can use this switch when using the power supply in other countries. 115 volts setting is used in the United States. 230 volts is used in Europe and the United Kingdom.

Which connector is most commonly used to connect printers to desktop PC systems? Ethernet network card IEEE 1284 802.11 wireless card USB Firewire

Explanation Most printers use a USB connector to connect directly to a desktop PC system. In the past, IEEE 1284 connectors were the most commonly used connectors, but that is no longer the case. A limited number of Firewire printers are available, but they are not as commonly used to connect printers and computer networks as USB. 802.11 wireless and Ethernet cards.

Which feature allows a tablet to recognize multiple finger touches at the same time? Accelerometer Resistive touchscreen Multi-touch Gyroscope

Explanation Most tablet devices use a capacitive touchscreen interface, meaning that they require conductive material, such as your finger tip, for input. Capacitive touchscreens provide multi-touch capabilities, which allow the tablet to recognize multiple finger touches at the same time. Gyroscopes and accelerometers are used to detect acceleration of the device. Most modern tablets do not use resistive touchscreens, which don't provide multi-touch capabilities.

Due to a blackout, power is no longer coming from the wall outlet, and your computer is now off. You do not have a UPS, and you need to remove a disc out of the DVD drive. What is the easiest method for retrieving the disc? Remove the drive and carefully pry open the tray. Add a UPS between the wall outlet and the computer. Press the drive's eject button while pressing the computer's restart button. Push an unbent paper clip into the hole on the front of the drive.

Explanation Optical drives have an emergency eject hole. To open the disc tray when the drive does not have power, push a thin, rigid object (such as an unbent paper clip) into the hole to open the disc tray. Adding a UPS to the computer may provide enough power to eject the disc, but is not the easiest method. Prying the tray open will most likely damage the drive. Pressing the Eject button on the drive and the Restart button on the machine will not eject the disc.

Which of the following are optical storage devices? (Select THREE.) SSD SDHC CD USB flash drive HDD DVD BD

Explanation Optical storage devices use lasers for both reading and writing information. The following are all optical storage devices: · CD (Compact Disc) · DVD (Digital Video Disc or Digital Versatile Disc) · BD (Blu-ray Disc) HDDs (Hard Disk Drives) are magnetic storage devices. A flash device stores information using programmable non-volatile flash memory. USB flash drive, SSDs (Solid State Drives), and SDHC memory cards are flash devices.

After working without problems for a couple of years, your computer has begun to lock up. You suspect that it is a thermal issue, but you can't find any component that is not functioning correctly. You have not replaced the CPU or installed any new devices. The CPU cooling fan and the power supply fan are working properly. The lock-ups are happening with increasing frequency. Which of the following is the MOST common condition that might explain these symptoms? The power supply has been switched to the wrong voltage setting. The internal temperature sensor is beginning to malfunction intermittently. An accumulation of dust has gradually built up. The BIOS has never been flashed and has gotten more and more out of date.

Explanation Over time, an accumulation of dust can gradually build up and cause significant overheating by constricting airflow through the system case. Vent holes and heatsink fins can become clogged with dust, which prevents heat dissipation. Remove the dust with compressed air or an anti-static vacuum. The BIOS should be flashed when firmware updates are available, but failing to do this will not lead to system overheating. Switching the power supply to the wrong voltage can damage system components, but this would not lead to the system locking up more frequently over time--the damage would happen immediately. A malfunctioning heat monitor could cause the system to lock up, but the frequency is likely to be intermittent, not consistently increasing in frequency.

What is the name for the routine that tests the motherboard, memory, disk controllers, video, keyboard and other system hardware? BIOS CSST CMOS POST

Explanation POST stands for power on self-test. It is the routine that tests system hardware on startup. The BIOS chip is firmware (hardware hard-coded with software) attached to the motherboard and is essential in booting the computer. The CMOS battery supplies power to the real-time clock to maintain the date and time.

Which of the following is an error detection technique that can detect errors with only one bit? EDO ECC Non-parity Parity

Explanation Parity error detection can only detect errors with only one bit, while Error Correcting Code (ECC) can detect errors with more than one bit. EDO is not a type of error correction, it is a type of memory that can start a new access cycle while keeping the data output of the previous cycle active.

Consider the cable connectors used by various peripheral devices (pictured below). Drag the letter on the left to the peripheral device on the right that would most likely use the connector type. External storage device G Analog monitor D Video camera C HDTV A Dial-up modem H Digital monitor (without audio) E Network adapter F Headphones B

Explanation Peripheral devices use specific connector types to connect to a computer. The following connector types are pictured: · HDMI - used to send high-quality digital video and audio signals to LCD monitors and HDTVs. · Fiber S/PDIF - used for home theatre systems or Dolby Digital surround sound systems. · IEEE 1394 - used to connect devices that require fast communication speeds, such as video cameras and external hard drives. · VGA (DB-15) - used by analog monitors. · DVI - used by digital monitors and does not carry audio. · RJ45 - used by Ethernet network adapters and other networking devices. · USB - used by USB devices (such as external storage devices). · RJ11 - used by dial-up modems. · TRS jack - used by analog audio devices (such as speakers and headphones).

You are installing networking cable in the air space between the ceiling and the roof of a building. Which type of cabling should you use? Multi-mode fiber STP PVC Plenum

Explanation Plenum cable is fire resistant and non-toxic, making it optimal for wiring above ceiling tiles. PVC cable cannot be used to wire above ceilings because it is toxic when burned. Both STP and fiber optic cables can be rated for plenum areas, but are not fire resistant.

A technician is running a network above a dropped ceiling that is also used for ventilation. The cable must be twisted pair and must be capable of Gigabit Ethernet speeds. Which of the following cables should be used? Plenum-rated multimode fiber Riser-rated CAT-5e Riser-rated RG-58 Plenum-rated CAT-6a

Explanation Plenum-rated CAT-6a cables can transfer data at 10 Gbps and can be placed in plenum spaces used for ventilation. Riser-rated RG-58 cables are coaxial and can transfer data at 10 Mbps. Plenum-rated cables can be used in riser applications, but riser-rated cables can't be used in plenum applications. Riser-rated CAT-5e cables can transfer data at 1 Gbps, but can't be used in plenum applications. Plenum-rated multimode fiber can transfer data at 10 Gbps, but is not twisted pair.

You have a laptop with a dual-core processor that has the following characteristics: · 1024 KB L2 cache · 125 Watts · 45nm process size You want to upgrade the processor to one that uses less power. Which of the following characteristics would MOST likely identify a processor that uses less power? 512 KB L2 cache Single-core processor 32nm process size 90 Watts

Explanation Power consumption for a processor is measured in Watts. A 90-Watt processor consumes less power than a 125-Watt processor. It is possible that a single-core processor, one with less cache, or one with a smaller process size will consume less power. However, only the Watt rating will tell you for sure how much power the processor requires.

Which of the following statements are true regarding power supply wattage? (Select TWO). A system's wattage requirement does not depend on the amount of devices in the system. The wattage requirement for each individual circuit uses formula W = V x A. A system's wattage requirement equals the highest wattage requirement for a single individual circuit. The watt rating indicates how much power can be supplied to various devices. The lower the wattage rating, the more amps a power supply can deliver.

Explanation Power supplies are rated in watts. The watt rating indicates how much power can be supplied to various devices. The more devices you have in your computer, the more wattage you will require. You can calculate the system's wattage requirements using the following method: 1. Find the watt requirement for each component by multiplying volts by amps (W = V x A). 2. Add each value together to find the total watt requirements.

Which of the following virtual printing options allows you to convert a Word document into a .jpg file? Print to Image Print to XPS Print to File Print to PDF

Explanation Print to Image allows you to print any document into an image file that is independent of the application you use to view them. For example, you can convert a Word document into a .jpg file. The resulting images are print-ready and optimized for websites, smartphones, and tablets. You can also print them on a physical printer for excellent printouts. Print to the XPS allows you to create .xps files using any program that you can print from in Windows. Use the Print to XPS Document Writer when you want to view, save, share, digitally sign, and protect your document's content. The Print to PDF feature allows you to print your document to PDF format. Print to File saves the formatting and layout information of your file so a printer can create the document without the program or computer that created it.

You replaced the ink cartridges in a color inkjet printer. Users are now complaining that print quality has degraded, lines are fuzzy, and the colored areas in images are starting or stopping before they should. Which inkjet maintenance task do you need to perform? Correct Answer: Printer cartridge calibration Correct Answer: Cartridge replacement using new cartridges instead of refills Correct Answer: Carriage and belt realignment Correct Answer: Print head cleaning

Explanation Printer cartridge calibration is a task that needs to be done every time ink cartridges are replaced. Most inkjet printers include a calibration utility that you can use to align the new print head in the new cartridge. Skipping this task will cause print quality to degrade, with lines becoming fuzzy and the colored areas in images starting or stopping before they should.

You have created a large course that describes how to install and use the software created by your company. You created the document using FrameMaker, which uses its own proprietary file format. Because your customers don't use FrameMaker, you need to print the document in a format that all of your customers can use. Your customers use Windows, Linux, and Mac operating systems. Which of the following print methods would provide the BEST output for your customers to use? Correct Answer: Print the file to paper and ship it to your customers. Correct Answer: Print the file to XPS. Correct Answer: Print the file to the Fax printer. Correct Answer: Print the file to PDF.

Explanation Printing to the virtual PDF printer would produce a document that all three OS platforms can easily view. Printing to XPS would also work for Windows users, but would be difficult for those using Linux and Mac systems, since most don't support XPS by default (although third-party tools are available). Printing to FAX or to paper is impractical and cost-prohibited because of the cost of printing and shipping.

You have been asked to configure the drives in a computer. The end user wants to use striping without incorporating any fault tolerance. Which of the following will BEST meet these requirements? Expanded volume set RAID 5 RAID 1 RAID 0

Explanation RAID 0 uses disk striping and offers no fault tolerance. Disk striping breaks data into units and stores the units across a series of disks by reading and writing to all disks simultaneously. A failure of one disk in the set means all data is lost. This is the fastest of all RAID types. RAID 5 also uses disk striping, but provides fault tolerance for a single disk failure. RAID 1 provides fault tolerance, but does not use striping. An expanded volume set is a volume that spans more than one hard drive. An expanded volume set also offers no fault tolerance, yet does not use striping.

Ben is concerned about losing data due to a hard disk failure. His computer will only support a maximum of three disks. To protect his data, you have decided to use RAID (redundant array of independent disks). Which of the following RAID types would give Ben the BEST mirrored data protection? RAID 0 RAID 1 RAID 5 RAID 10

Explanation RAID 1 is the only mirrored solution that can work on three or less drives. RAID 0 and RAID 5 protects data using stripping. RAID 10 uses mirroring, but requires a minimum of four disks.

One of your customers wants you to build a personal server that he can use in his home. One of his concerns is making sure he has at least one backup of their data stored on the server in the event that a disk fails. You have decided to back up his data using RAID. Since this server is for personal use only, the customer wants to keep costs down. Therefore, he would like to keep the number of drives to a minimum. Which of the following RAID systems would BEST meet the customer's specifications? RAID 0 RAID 1 RAID 5 RAID 10

Explanation RAID 1 will protect memory from a single disk failure and provides high-read performance. It also only requires a minimum of two disks. RAID 5 would also protect data from a single disk failure, but requires a minimum of three disks, and RAID 10 requires a minimum of four disks.

Which of the following drive configurations uses striping with parity for fault tolerance? RAID 0 RAID 1 RAID 5 RAID 10

Explanation RAID 5 also uses disk striping, but provides fault tolerance for a single disk failure. Disk striping breaks data into units and stores the units across a series of disks by reading and writing to all disks simultaneously. RAID 0 uses disk striping and offers no fault tolerance. A failure of one disk in the set means all data is lost. RAID 1 provides fault tolerance, but does not use striping. A RAID 10 array nests a mirrored array within a striped array.

What is an advantage of RAID 5 over RAID 1? RAID 5 continues to operate with a failure in two disks; RAID 1 can only operate with a failure of one disk. RAID 5 provides redundancy for the disk controller. RAID 5 improves performance over RAID 1. RAID 5 provides redundancy; RAID 1 does not.

Explanation RAID 5 provides both fault tolerance and improved performance. RAID 1 (mirroring) provides only fault tolerance with no performance benefit. Both RAID 5 and RAID 1 can only sustain a loss of one disk in the set. Use multiple disk controllers to provide redundancy for the disk controller.

You are the network technician for a small company. One of your responsibilities is to ensure that all new hardware is connected and functioning properly. You have several different types of connections that are used for various types of hardware. One of the types of cable available to you is an RJ45 cable. Which of the following BEST describes where this cable would most likely be used? Fax machine connection Voice over IP connection Telephone connection Modem connection

Explanation RJ45 ports are used to create Ethernet networks by connecting multiple computers and networking devices. RJ45 ports have eight connector pins. Voice over IP (VoIP). RJ11 ports are used by telephones and modems to send analog signals. RJ11 ports have four connector pins.

Your system crashes at various times: sometimes on startup, sometimes when running a software application, sometime when a certain group of applications is running. You suspect a malfunctioning CPU, but none of the common issues seem to be present. You have not configured overclocking. There is no overheating. The CPU is seated correctly and locked into its socket. What can you do to definitively determine if the CPU is causing the system crashes? Switch to a comparable CPU from a different manufacturer. Replace the suspect CPU with a known good CPU of the same make and model. Downgrade to a CPU that has fewer cores and is less demanding on your system resources. Throttle the processor to reduce the operating frequency and minimize power consumption.

Explanation Replacing the suspect CPU with a known good CPU of the same make and model is the best way to determine if the CPU is the problem. There is only one variable in this test. If the system stops crashing after the CPU was replaced, it is safe to assume that the suspect CPU was not functioning properly. Any other course of action introduces more variables to the environment. If intermittent problems continue to occur, you are no closer to finding the cause.

You work as the IT administrator for a small corporate network. One of the company employees needs to add an additional PCI card to the motherboard. When you open the computer, you see that the card purchased will not fit due to the card's height. Which of the following is the BEST method for using the newly purchased card? Use a parallel card to allow the new card to be installed parallel to the motherboard. Use a riser card to allow the new card to be installed parallel to the motherboard. Use a firewire card to allow the new card to be installed parallel to the motherboard. Use an expanded case to accommodate the height of the newly purchased card.

Explanation Riser cards attach to the motherboard and have expansion cards on the side. Using these expansion slots allow you to install additional cards parallel to the motherboard. This is especially useful in low-profile computers. A parallel card adds additional parallel ports used for such things as a printer. A firewire card gives the computer the ability to connect to a device using firewire.

Which component in a laser printer applies toner to the drum, causing the toner to stick to the charged areas on the drum? Fuser Developing roller Secondary corona Primary corona

Explanation The developing roller applies toner to the drum. The toner sticks to the charged areas on the drum. The transfer roller charges the paper to attract the toner. The primary corona prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge. Depending on the printer, the primary corona may be wires or rollers. Fusing rollers attach the toner to the paper by pressing and melting it.

For a special project, you have been asked to recommend the lowest profile desktop computers available. You are attempting to put together the specifications for these machines. Which of the following types of cards are attached to the motherboard to allow expansion cards to plug into them instead of the motherboard? PCMCIA Communications and Networking Riser Riser VESA Local Bus

Explanation Riser cards attach to the motherboard and have expansion cards plug into them instead of the motherboard. The primary benefit of a riser card is that, by installing expansion cards parallel to the motherboard, it's possible to create a low-profile design. Communications and Networking Riser (CNR) is a type of expansion slot found on some motherboards that is used for network and sound expansion boards. Personal Computer Memory Card International Association (PCMIA) cards were used several years ago to add devices to laptops. VESA Local Bus was also a type of expansion slot found on older motherboards that was primarily used for the video interface.

You are building a new computer and want to purchase a motherboard that has integrated sound with digital audio output. Which of the following ports would you MOST likely find on the motherboard faceplate that indicates digital audio support? DB-15 F-type Mini-TRS S/PDIF Mini-DIN

Explanation S/PDIF audio is a digital audio output. A TOSLINK connector is a connector used by fiber optic digital audio. An RCA connector for audio is also digital audio using coaxial cable. Mini-TRS ports on the sound card indicate analog audio input and output. A DB-15 connector on a sound card is used to connect MIDI devices. A mini-DIN connector is used on video cards for S-video input and output. An F-type connector is used for TV input from cable or an antenna.

What is a major benefit STP provides that UTP does not? Ability to install longer cable lengths Greater resistance to interference Lower cost Safer for installations in overhead ceiling spaces

Explanation Shielded Twisted Pair (STP) has a grounded outer copper shield around the bundle of twisted pairs or around each pair. This provides added protection against EMI. Unshielded Twisted Pair (UTP) does not have a grounded outer copper shield.

Ida, one of the employees in the sales department, needs a way to display her PowerPoint sales presentation to a large group of potential customers. She has asked you to set up the conference room in preparation for her presentation. You will need to purchase a display system for the conference room. Which of the following display systems would be the BEST to purchase? A large LCD monitor A large Plasma monitor A large OLED monitor A large screen and a projector

Explanation Since Ida is presenting to a large group, most monitors would be too small to view from the back of a room. Therefore, using a projector and screen will provide the best view of her presentation.

The marketing department has hired a new employee. Prior to the new employee's first day at work, you have set up and configured a new laptop computer. The computer and all of the peripherals were purchased from the same vendor. After the new employee begins work, you receive a phone call stating that the wireless mouse is not working. Which of the following is the MOST likely reason the mouse isn't working? The USB mouse receiver is not plugged into the computer. The USB mouse driver is too old for the current mouse. The USB mouse is not a wireless mouse and needs to be plugged into the computer. The USB mouse is malfunctioning.

Explanation Since the computer and mouse are all new and were all purchased from the same vendor, the likelihood of the mouse and the driver not working is very slim. Therefore, the MOST likely reason is that the USB receiver for the mouse is not plugged in or is not seated correctly.

You have just received an order of various system components from an order you placed several weeks ago. One of the components is labeled as SODIMM memory. For which of the following was this memory MOST likely purchased? Laptop computers Desktop workstations Servers Printers

Explanation Small outline dual in-line memory modules (SODIMM) is a compact form factor of DIMM. It is typically used in smaller computers, such as laptops.

Susan works in the research and development department. She has recently purchased a large high-speed external drive and has attached the drive to her computer using a USB cable. Her drive requires a minimum bandwidth of 400 Mbps and at least 900 milliamps (mA) to function. Although the correct drivers are installed, the drive is not functioning. To troubleshoot the problem, she has connected her drive to her coworker's computer where the drive functions properly. No additional cables are required for this drive. Which of the following is the MOST likely reason Susan's external hard drive is not working? Susan has connected her drive to a USB 3.0 port, which does not support the maximum bandwidth required. Susan has connected her drive to a USB 3.0 port, which does not have enough power for her drive. Susan has connected her drive to a USB 2.0 port, which does not support the maximum bandwidth required. Susan has connected her drive to a USB 3.0 port, but the drive is only made to work with a 2.0 port. Susan has connected her drive to a USB 2.0 port, which does not have enough power for her drive.

Explanation Susan has connected her drive to a USB 2.0 port, which does not support the requirements for her drive. Large high-speed USB drives require more power than a USB 1.0 or 2.0 can provide. USB 2.0 supports a maximum bandwidth of 480 Mbps and is, therefore, fast enough for Susan's drive. A 2.0 port only supports a maximum power consumption of 500 milliamps.

You have just finished upgrading the CPU in your desktop system. After running the system for about 10 minutes, the system locks up and automatically restarts. Which of the following is the BEST first step in troubleshooting the problem? (Select TWO). Remove any unneeded components and run the system. Check the power supply voltage switch. Check the CPU fan power. Replace the power supply. Make sure the heat sink is properly mounted and has thermal paste.

Explanation System lockups and restarts can be caused by several problems, including an overheated processor. Because the CPU has just been replaced, this is the most likely cause of the problem. First, you should make sure the CPU fan is running. After that, you should check if the heat sink is properly mounted and has thermal paste between it and the CPU.

Which of the following printers would produce the highest print quality? Correct Answer: 24-pin Correct Answer: 300 DPI Correct Answer: 600 DPI Correct Answer: 18-pin

Explanation The dots per inch (DPI) describe the level of detail produced by a printer. The higher the DPI, the higher the print quality.

An employee complains that every time they turn their computer off, the computer's time is set to 12:00 p.m., and the date is set back to January 1, 1990. Which of the following is the MOST likely cause of this anomaly? The CMOS battery has failed. The CMOS chip is failing. The CMOS settings are not being saved before powering off the computer. The CMOS chip on the motherboard is loose.

Explanation The CMOS (a physical part of the motherboard) is a memory chip that houses setting configurations. The CMOS is able to maintain its setting when the computer is powered off by using a CMOS battery. If the CMOS battery is failing, you may see the effects, such as the time and day being slightly off. If the CMOS battery has failed, it will typically reset the date and time back to the date the CMOS was created. The CMOS is reset and loses all custom settings if the CMOS battery fails. Additionally, the system clock resets when the CMOS loses power.

A technician must press a cable connector's retaining tab to remove a faulty fiber optic network cable. Which of the following connectors does the cable use? RJ11 ST LC RJ45

Explanation The LC connector is used with fiber optic cabling. It has a retaining tab that locks the connector in place. The ST connector is used with fiber optic cabling. It is locked in place using a push and twist action. The RJ11 connector is used with twisted pair cabling. It supports up to two pairs of wires. It has a retaining tab that locks the connector in place. The RJ45 connector is used with twisted pair cabling. It supports up to four pairs of wires. It has a retaining tab that locks the connector in place.

You have a DVD-ROM disc with no label, and you want to know if it has any important files on it. You insert the DVD-ROM into your optical media drive, then you double-click the drive letter for the optical drive to see the contents of the disc. If the DVD-ROM is not a valid disc, which error message will you see? Foreign Missing Unreadable No Media

Explanation The No Media status shows for an optical or removable media drive that does not contain a valid disc. A Foreign disk is a dynamic disk that was created in one system and moved to another system. The Unreadable status indicates a hardware failure, I/O errors or other corruption but might also be caused by a delay in reading the disk in Disk Management. The Missing status shows when a dynamic disk has failed.

Which expansion slot is best for high-end dedicated video cards? PCIe x1 PCI-X PCIe x16 AGP

Explanation The PCIe x16 expansion bus is the preferred bus for high-speed video cards. A PCIe x1 slot is not as fast as a PCIe x16 slot, and most video cards are designed for the x16 slot. APG is an older interface that is not used anymore. The PCIe bus was created to replace the PCI-X bus and, as such, has faster data transmissions.

What type of USB 3.0 connector is shown here? Type-B Type-A Micro-B

Explanation The blue tab indicates that the connector is a USB 3.0 Type-A connector and capable of USB 3.0 speeds. USB 3.0 Type-A connectors are backwards compatible with all previous USB versions. The USB 3.0 Type-B connector is larger in size and designed to carry both data and power. Due to their increased size, USB 3.0 Type-B connectors cannot be plugged into older USB Type-B ports. However, USB 3.0 peripherals that use this port are able to accept older USB Type-B connectors. The USB 3.0 Micro-B connector is used by portable devices, such as compact external storage devices, digital cameras, or smartphones.

Which of the following types of printers heats the ink in its print head to print? Laser Thermal Bubble jet (inkjet) Piezoelectric crystal inkjet

Explanation The bubble jet inkjet printer applies heat to the ink and squirts it through tiny nozzles in the print head and onto the paper. A laser printer also uses heat, but the heat is applied to thermal rollers (not a print head). A piezoelectric printer uses pressure to apply ink. A thermal printer uses heat to cause a reaction on specially treated paper.

Which of the following BEST describes the chipset? Facilitates communication between the processor, memory, and peripheral devices. Designed to be compatible with a specific type of memory module. Connections to the motherboard's front panel connectors, which are also called headers. Allows you to expand the capabilities of your computer by installing expansion cards.

Explanation The chipset is a group of chips that facilitates communication between the processor, memory, and peripheral devices.With chipsets: · The memory controller and graphics controller are on the CPU. · The remaining functionality is combined into a single controller chip. · Intel processors use the Platform Controller Hub (PCH). · AMD processors use the Fusion Controller Hub (FCH). · The front-side bus is replaced by the Direct Media Interface (DMI). Expansion slots (also called expansion buses) allow you to expand the capabilities of your computer by installing expansion cards. Memory slots are designed to be compatible with a specific type of memory module. Internal connectors are ports that are connected to the motherboard's front panel connectors, which are also called headers.

This question includes an image to help you answer the question. View Image This question includes an image to help you answer the question. View Image The manager of the research and development team needs to make a PowerPoint presentation for her team members (no audio). Her presentation requires her computer to be connected to a large high-definition television. You have been asked to ensure that the computer is connected and functioning properly prior to her presentation. In the process of setting up the computer, you find that the computer video port (see image 1) is different from the port found on the TV (see image 2). Which of the following adapters MUST you use to connect the computer to the TV? RCA to HDMI VGA to HDMI DVI to HDMI RCA to USB VGA to USB DVI to USB

Explanation The computer has a DVI connector, while the TV has an HDMI connector. Therefore, you will need to use a DVI-to-HDMI adapter. DVI is a digital signal in the same format as the video portion of HDMI. However, DVI doesn't carry the audio signal like HDMI does. This means that if you are only using the video signal (such as showing a PowerPoint slide show), you can use a simple DVI-to-HDMI plug adapter that changes the physical connections.

You are trying to troubleshoot a desktop power supply issue using a voltmeter. Which of the following options are the MOST common voltages produced by the power supply? (Select TWO). +/- 5 v +/- 110 v +/- 120 v +/- 10 v +/- 12 v

Explanation The computer power supply provides +/- 5 v and +/-12 v. Many power supplies also provide +/- 3.3 volts, although 3.3 volts is not used in many newer components and is optional in recent specifications. Most power supplies accept AC 110/115 or 220/230 volts as input.

You have a computer system with a dual-core processor. You would like to upgrade to a quad-core processor, but you don't want to replace the motherboard. Which of the following steps SHOULD you perform first? Read the motherboard documentation to identify which processors are supported. Replace the VRM. Install the processor. Edit the BIOS to allow quad-core CPUs. Configure jumpers on the motherboard to allow four CPU cores.

Explanation The first thing you need to do before purchasing and installing a new processor is use the motherboard documentation to verify that the new processor is supported by your existing motherboard. After you have determined that the new processor is supported by the motherboard, you can take additional steps, such as installing the processor, editing the CMOS, configuring jumpers, and replacing the VRM if necessary.

You are purchasing a PC system that will be used as a file and print server in a small business. Which of the following hardware selection criteria is the MOST important for this system? (Select TWO). High-end video adapter with GPU HDMI output RAID 1+0 array 64-bit multi-core processor RAID 0 array

Explanation The following hardware selection criteria is most important for a PC system that will be used as a file and printer server in a small business: · RAID 1+0 array · 64-bit multi-core processor A high-end video board with HDMI output is not required for a server system. A RAID 0 array offers performance, but does not protect data with redundancy.

You have just upgraded the CPU on your computer. You consulted the motherboard documentation to make sure the CPU is compatible with the motherboard. However, when you turned the system on, it locks up shortly after startup. While troubleshooting this issue, which of the following are the BEST steps to try first? (Select TWO). Replace the CMOS battery. Make sure the CPU is seated properly, oriented properly, and locked into the socket. Look for something that could be causing the new CPU to overheat. Test the power supply using a multimeter. Make sure the power cord is plugged in and the power supply switch is in the On position.

Explanation The most common issues that occur when a new CPU has been installed are: 1. The system locks up because it gets too hot. You should check for the following: · The heatsink and fan are not placed correctly or are in poor condition · Thermal paste or the thermal pad have not been used between the processor and the heatsink · The heatsink is not firmly attached to the processor 2. The system locks up because the CPU is not properly seated or is oriented incorrectly.

You have just finished replacing the motherboard in your friend Ethan's computer with the same type of motherboard it originally had. You tested the motherboard by powering it on and verifying that the operating system started, and his applications were working. Now Ethan is complaining that his computer no longer recognizes his external hard drive. Which of the following is MOST likely causing the external hard drive not to function? The USB front panel connector was not properly connected. The replacement motherboard does not support external hard drives. Ethan's hard drive has failed. The computer's power supply was not connected properly.

Explanation The most likely cause is that the USB cable is not connected or is not connected properly. It is unlikely that the hard drive suddenly failed. Since the operating system and applications are functioning properly, the power supply is functioning correctly as well.

You have a Windows system with two SATA hard drives, one used for the operating system and the other used for storing data. You have traced recent problems to a fault in the system motherboard. You replaced the motherboard and reconnected all the hardware. When you started the computer, the system showed the startup information screen, but then returned an error that an operating system could not be found. What should you do? (Select TWO. Each option is part of the complete solution.) Press F6 during startup and load the SATA drivers. Boot into Safe Mode and import the disks in Disk Management. Verify the operating system SATA drive is configured as the boot drive in the UEFI configuration. Change the boot order in the UEFI configuration. Boot into the recovery console and run the bootrec /rebuildbcd command.

Explanation The most likely cause is that the boot configuration in the UEFI firmware of the new motherboard needs to be modified. First, you should specify that the SATA hard disk with the operating system installed is the hard disk to boot from. Then set the boot order to boot from the hard disk first. When you replace the motherboard, the UEFI chips are replaced and previous boot configuration is lost.

You would like to upgrade the processor in your system to a 64-bit processor. Which of the components will you most likely need to upgrade as well to take full advantage of the new processor? RAM Operating system BIOS Hard disk

Explanation The motherboard and the operating system must be able to support the processor in use. Many 64-bit CPUs can run a 32-bit version of the operating system. However, the operating system will run only in 32-bit mode and will not take full advantage of the 64-bit processor. Even if you stick with the 32-bit operating system, chances are you will need to upgrade the hardware abstraction layer (HAL) to one that is compatible with the 64-bit processor. The BIOS must support the 64-bit processor. However, when you upgrade the motherboard, you will get a new BIOS chip, so upgrading the BIOS will not be an issue.

Which network component connects a device to the transmission media and allows it to send and receive messages? Bridge Switch Network interface card Protocol

Explanation The network interface card (NIC) allows a device to send and receive messages over the transmission media.

You have a desktop computer that uses a 250-watt power supply. You recently added a four-disk RAID 10 array to the system, and now it spontaneously shuts down. Which of the following would MOST likely rectify this issue? Upgrade to smaller capacity hard drives. Use the switch on the power supply to switch from 115 VAC to 230 VAC. Upgrade to a power supply that provides more watts. Upgrade to a power supply that provides more volts.

Explanation The number of devices a powers supply can support is directly related to the number of watts the power supply provides. In this situation, the new RAID array, along with all of the other components in the system, is drawing more watts than the power supply can provide. A watt is a rating of the amount of work that the power supply can do. Volts are a measure of electrical pressure and are not directly related to the number of devices it will support. The voltage is dependent on the wall socket's voltage. The voltage switch on the power supply should match the voltage at the wall outlet. 115 is used in the United States, while 230 is typically used in Europe.

You have purchased a new LED monitor for your computer. On the back of the monitor, you see the following port (pictured below). Which type of cable should you use to connect the monitor to your computer? DisplayPort cable HDMI cable VGA cable DVI cable

Explanation The pictured port is a DisplayPort, which uses a DisplayPort cable. HD displays, such as LED and LCD monitors, use DisplayPorts. DisplayPorts can be identified by their rectangular shape, with one beveled corner. HDMI ports have two beveled corners and are a bit smaller than DisplayPorts. VGA ports have three rows of 5-pin holes. DVI ports are larger than other video ports and have up to 24 pin holes.

You are servicing a client's computer that has been randomly restarting. You decide to test the power supply using a multimeter. You connect the positive lead to the yellow wire on one of the Molex connectors. Which of the following BEST describes the action you should take based on the multimeter reading shown below? Keep using the power supply, but stop using that particular Molex connector. Continue using the power supply until the voltage on the yellow wire drops to less than 9 volts. Switch the voltage selector on the back of the power supply to 230 volts AC. Replace the power supply because it is failing.

Explanation The power supply in this scenario is failing. Any time the voltage on the yellow wire of a Molex connector drops below about 11 volts, the power supply should be replaced. Switching the power supply to use 230 volts AC will not fix the issue. Low voltage issues aren't contained to a single connector, so even if you stop using that particular Molex connector, the system will still have problems.

Which component in a laser printer prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge? Transfer corona Organic photoconductor (OPC) drum Fuser Primary corona

Explanation The primary corona (also called the main corona or the charge corona) prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge. Depending on the printer, the primary corona will be wires or rollers. The Ooganic photoconductor (OPC) drum is just another name for the photosensitive drum. The transfer corona (sometimes called the secondary corona) charges the paper to attract the toner. Fusing rollers attach the toner to the paper by pressing and melting it.

Which of the following allows a computer to communicate with a printer? Printer port Print driver Print spooler Print queue

Explanation The print driver is the software that allows the computer to communicate with the printer. The print queue is the portion of the hard drive where print jobs are stored before going to the printer. The printer port is the means by which a printer connects to a print server.

Which term refers to the portion of the hard drive where print jobs are stored before going to the print device? Print queue Print device Print driver Printer port

Explanation The print queue is the portion of the hard drive where print jobs are stored before going to the print device. The print device is the physical device connected to the print server where print output occurs. The print driver is the software that allows the printer to communicate with the print device. The printer port is the hardware that allows a print device to connect to a print server.

Your company has decided to hire a full-time video editor. You have been asked to find a system with the level of display quality needed by someone who will be working with video all day. Which of the following video related specifications will have the greatest impact on display quality? (Select TWO). GPU configuration Display connector type Resolution Memory Refresh rate

Explanation The quality of video is determined by both the video card and the external display. When selecting a video card, the following specifications should be considered: · Resolution: the number of pixels displayed on the screen. A higher resolution means that more information can be shown on the screen (screen "real estate"). A video card is rated by its max resolution, which is the highest possible resolution it can display (e.g., 1920 x 1080 or 4096 x 2160). A video editor is going to need as much real estate as you can afford. · Refresh rate: the number of times in one second that the GPU draws a frame. Refresh rates are measured in hertz. A refresh rate of 70 Hz or lower may cause eye fatigue. An optimal refresh rate is between 75 Hz and 85 Hz. The display specifications should match the video card specifications. Memory, GPU configuration, and display connection type are all factors that will contribute to video performance or compatibility with the display. But these factors do not directly determine the display quality.

A customer is upgrading the routers and switches in their network. The signal source in these network devices is a light-pulse. Which of the following network cabling options is MOST likely being used in this upgrade? Wireless Twisted pair Fiber optic Copper

Explanation The signal source used with Fiber optic cables is a light pulses. Fiber optic cabling can be a laser, but most often, it is an LED The signal source used with wireless networks is radio waves or infrared waves. The signal in twisted pair cabling is an electric signal and is not produced by an LED. The signal in copper cabling is an electric signal and is not produced by an LED.

Which component in a laser printer charges the paper to attract toner? Transfer roller Primary corona Drum Fuser

Explanation The transfer roller charges the paper to attract the toner. The primary corona prepares the photosensitive drum for writing by causing it to receive a negative electrostatic charge. Depending on the printer, the primary corona may be wires or rollers. A laser beam changes the charge on the surface of the drum in a pattern of the page's image. The toner sticks to the charged areas on the drum. Fusing rollers attach the toner to the paper by pressing and melting it.

Which of the following methods can be used to connect a printer to a network? (Select TWO.) Connect your printer to an external print server device that is connected to the network. Plug a USB-to-Ethernet adapter in your printer's USB port. Plug a network cable into your printer's USB port. Plug an Ethernet cable into the network port in the printer. Plug a network cable into your printer's serial port.

Explanation There are two common ways to make a printer a network printer. Most printers come with an integrated network card or have a slot for adding a network card. Otherwise, it is possible to connect it to the network using an external printer server. The external print server functions as a gateway between the printer's parallel interface and the network topology. While a USB-to-Ethernet adapter can be used to connect a workstation to a wired network, it won't work with a printer, as software drivers must be loaded on the host for the adapter to work.

While sorting through a box of cables in your storage room, you find one that matches the configuration shown in the image. Which of the following BEST describes the type of cable configuration and the purpose for which it would be used? RJ11 configuration used to connect wireless routers to phone line connections. Rollover cable configuration used to connect computers to routers for console management. Crossover cable configuration used to connect computers directly to one another for networking. Patch (or straight-though) cable configuration used to connect computers to network devices, such as switches and hubs.

Explanation This is a crossover cable configuration. Using this configuration, computers can connect directly to one another. The easiest way to create a crossover cable is to arrange the wires in the first connector using the T568A standard and arrange the wires in the second connector using the T568B standard.

Which of the following processor features used is MOST likely to dynamically reduce power consumption based on current operating conditions? Overclocking Multi-core Throttling Caching Hyper-threading

Explanation Throttling modifies the operating characteristics of a processor based on current conditions. Overclocking is a feature offered on special motherboards that causes the processor to operate at a higher speed. A multi-core processor has multiple processor cores integrated into a single processor package. Hyper-threading is a feature of some Intel processors that allows the CPU to process threads in parallel. Caching, when used to describe processors, is a temporary storage area for data that is waiting for the processor.

You are configuring an ADSL connection. Which of the following will be part of the configuration? (Select TWO.) Filters or splitters An RG6 cable RJ11 connectors Analog modem F-type connectors

Explanation To connect to the internet through a DSL connection: · Install an internal DSL card in a single computer or connect a DSL router to the phone line. · Use a phone cable with an RJ11 connector to connect the DSL card or router to the phone line. For ADSL, place filters (splitters) on the line everywhere that an analog phone is used. · Do not install a filter on the line connected to the DSL router. Analog modems are used for dial-up internet access. F-type connectors and RG-6 cable are used for cable internet access.

You are a trainer for your company and often teach courses in a classroom located on-campus or in a hotel conference room. In your office, which is separate from the classroom, you have two external monitors connected to your laptop, and you are able to display different content on each monitor. However, when teaching, you only have your laptop and a projection unit. To make teaching easier, you want the same content to show on both the laptop monitor and the projection screen. Which of the following multiple display options would be BEST to select when teaching? Show only on 1. Show only on 2. Duplicate these displays. Extend these displays.

Explanation To display the exact same content on your laptop monitor and the projection screen, you will need to duplicate the displays. Extending the displays allows you to have different content on the laptop monitor than that shown on the projection screen. Showing on only 1 or 2 will limit the output to either the laptop monitor (1) or the projection screen (2), but not both.

You need to connect a new USB scanner to the USB port on your computer. However, the first time you plugged the scanner in, it was not recognized. What should you do? Start the Add a Device wizard and then connect the scanner to the USB port. Install the scanner drivers and then connect the scanner to the USB port and complete the Add a Device wizard when it pops up. Connect the scanner to the USB port. Complete the Add a Device wizard, which includes installing the drivers. Connect the scanner to the USB port.

Explanation To install USB devices, start by installing the driver. Then connect the device to the USB port. The operating system will detect the device and configure it automatically. The driver is used to tell the operating system how to communicate with the device.

You have an existing system that has a single DDR3 memory module installed. You would like to add more memory to the three remaining empty memory slots. Which of the following steps should MOST likely be taken to make sure you get the right memory for the system? (Select TWO). Purchase the slowest modules to ensure compatibility. Update the BIOS and then purchase the newest memory modules available. Check the motherboard documentation to find which modules are supported. Purchase the fastest modules possible. Purchase additional modules that are the same as what is currently installed.

Explanation To purchase the correct memory for your system, you can: · Check the motherboard documentation or the motherboard manufacturer's website to identify supported memory modules. · Purchase modules that are the same as what is currently installed. Be aware, however, that some motherboards may have limitations on the capacity of modules supported. For example, if a motherboard has four slots, you might be able to fill all slots only when memory modules are 1 GB or smaller. If you use larger modules, you may not be allowed to fill all of the slots. · Use an online configuration tool from a leading memory manufacturer to identify supported modules. Updating the BIOS might enable the motherboard to support newer memory modules, but you will still need to verify which modules are supported.

To fix a problem you are having with your PC, you have determined that you must flash the computer's BIOS. Which of the following would MOST likely need to be completed prior to flashing the BIOS? (Select TWO). Locate the flash utility or tool that was shipped with your PC. Create a backup of the hard disk in the event of a failure. Test the memory to ensure that it is functioning properly. Download the flash utility or tool from the manufacturer's website. Properly identify the motherboard.

Explanation To successfully flash your BIOS, it is critical that you research and know the exact make, model, and revision of your motherboard to ensure that the correct flash file is used. Using the wrong flash file will probably cause errors. Although your computer may have shipped with a tool to perform a BIOS flash, it is best to download the latest tool to ensure that the flash is performed correctly. Testing the memory and creating a hard backup will not aid you while flashing a PC's BIOS.

You need to purchase a case that meets the following criteria: · Compatible with most form factors · At least two external and internal bays · Good balance of size and space Which case type should you purchase? ATX full-tower Micro-ATX tower Mini-ITX tower ATX mid-tower

Explanation You should purchase an ATX mid-tower case. ATX mid-tower cases are compatible with the most motherboard form factors and typically have at least two external bays. Most ATX full-tower cases are not compatible with Mini-ITX motherboards and are larger than necessary for most applications. Micro-ATX towers are only compatible with microATX and Mini-ITX form factors. Mini-ITX towers are only compatible with the Mini-ITX form factor.

You are in the process of configuring a new computer. The motherboard has four memory slots and supports dual-channel memory. You install two memory modules. When you boot the computer, the BIOS recognizes both modules, but the memory is not configured to run in dual-channel mode. What should you do? Replace the memory with dual-channel capable memory. Add continuity modules to unused memory slots. Change the CAS latency to a higher setting. Move the modules to the correct motherboard slots.

Explanation To use dual-channel memory, you will need to install memory in the correct slots. Depending on the motherboard, the two slots might be next to each other or alternating. Consult the motherboard documentation for the correct configuration. Dual-channel support is mainly a function of the motherboard, not the memory itself. Continuity modules are used with Rambus RAM; if continuity modules were required on this system, none of the memory would have been detected. The CAS latency is used for memory timing. You might modify the timing if the system is unstable at the current memory timing settings.

What type of peripheral device is typically found on a laptop computer and allows the user to control the cursor with a finger? Gamepad Mouse Motion sensor Touch pad Scanner

Explanation Touch pads are typically found on notebook computers and are used in place of a mouse. Users slide their finger on the touch pad to manipulate the cursor. Motion sensors are devices that are able to detect the slightest amount of movement in an area. They are typically used with security systems and require special software and configuration. Gamepads are handheld controllers with directional controls on the left and buttons on the right. Scanners are used to scan hard-copy images and documents and convert them into digital input for the PC. A mouse is a hand-held device used to manipulate the cursor.

Steve has a color inkjet printer attached to his local computer. He has been complaining that when he prints a color document, the colors don't seem to be as realistic as usual, and sometimes seem faded. Which of the following actions would MOST likely restore Steve's printer back to its normal print quality? (Select TWO. Each option is a complete solution.) Correct Answer: Replace the ink cartridges. Correct Answer: Adjust the temperature. Correct Answer: Replace the solid ink sticks for the missing or faded colors. Correct Answer: Clean the print heads. Correct Answer: Clean the printing ribbons.

Explanation Two of the most probable causes are dirty print heads and low ink. Cleaning the print heads and verifying that all of the ink cartridges contain ink will typically solve this type of issue. Inkjet printers do not use solid ink sticks. Solid ink sticks are for solid ink printers. Inkjet printer do not need to be warmed, as heat is not related to the printing process, as is the case with dye sublimation printing. Thermal printers may require their printer ribbon to be cleaned. However, the print ribbon in an inkjet printer is a wide gray cable connecting the print head to the printer's system board and does not need to be cleaned.

You just bought a new computer. This system uses UEFI firmware and comes with Windows 10 preinstalled. You recently accessed the manufacturer's support website and saw that a UEFI firmware update has been released. You download the update. However, when you try to install the update, an error message is displayed that indicates the digital signature on the update file is invalid. Which of the following is MOST likely caused this to happen? The system has a rootkit malware infection. SecureBoot has been enabled in the UEFI firmware configuration. The update file has been tampered with. Interim UEFI updates released since the system was manufactured need to be installed before you can install the latest update.

Explanation UEFI requires firmware updates to be digitally signed by the hardware vendor. Using digital signatures, unauthorized changes to firmware updates (such as the insertion of malware) can be detected. The SecureBoot feature requires that operating systems be digitally signed before they can be booted on the system. The latest UEFI update most likely includes all of the changes implemented in early updates. There is no indication that the system has been infected with rootkit malware in this scenario.

Which of the following (1 BEST describes the technology designed to replace the BIOS and (2 is a firmware solution for controlling the startup process and loading the computer operating system into memory? BIOS 2 CMOS EEPROM UEFI

Explanation UEFI was designed to replace the BIOS and is a firmware solution for controlling the startup process and loading the computer operating system into memory. CMOS is a legacy computer chip technology that was used to store system information prior to the introduction of EEPROM. EEPROM is a non-volatile memory chip that stores the system startup information configured through UEFI. BIOS 2 does not exist.

Which of the following are benefits UEFI provides that BIOS does not? (Select three.) Allows individual bytes to be erased and reprogrammed. Supports drives larger than 2.2 TB. Supports 64-bit firmware device drivers. Provides non-volatile storage of system startup information. Does not need to be flashed as frequently. Faster startup times.

Explanation Unlike BIOS, UEFI provides the following benefits: · Faster startup times. · Supports drives larger than 2.2 terabytes. · Supports 64-bit firmware device drivers. · Provides better security to protect against bootkit (malware attacks on the boot process) attacks. Similar to BIOS, UEFI does need to be flashed when updates are available to make new features available on the computer. EEPROM is the technology that provides non-volatile memory and allows individual bytes to be erased and reprogrammed.

Your computer currently uses a 5,400 RPM hard disk. You want to improve your computer's overall performance by optimizing your hard disk performance. Which of the following would be the MOST effective means for optimizing your hard disk performance? (Select TWO). Upgrade your hard disk interface to SATA 2. Upgrade your hard disk interface to SATA 3. Upgrade your hard disk interface to eSATAp. Upgrade to a 10,000 RPM hard disk. Upgrade to a 7,200 RPM hard disk. Implement RAID 0 on the current hard disk.

Explanation Upgrading to a 10,000 RPM hard disk and upgrading to a SATA 3 disk interface are the two most effective steps you can take to improve your computer's overall performance. The 7,200 RPM hard disk is not the fastest hard disk option. At 600 Mbps, the SATA 3 disk interface is twice as fast as the SATA 2 interface. Although hard disk drives are not capable of sending data at the full 600 Mbps, they can go faster than the SATA 2 interface allows. Implementing RAID 0 does improve hard disk performance, but it requires a minimum of two disks. Adding another hard disk while keeping your current 5,400 RPM disk would not improve your hard disk performance as much as upgrading to 10,000 RPM hard disk with a SATA 3 disk interface.

You are building a new computer from both new and used parts. The video card is a PCIe video card that requires an 8-pin power connector. However, your power supply doesn't have an 8-pin PCIe power connector. Which solution would be the least expensive option for your system? Connect the 8-pin processor cable to the video card. Use an adapter cable to connect two 4-pin Molex connectors to the 8-pin PCIe connector. Purchase a new video card that does not require a power connector. Purchase a new power supply with the necessary connector.

Explanation Use an adapter cable to convert 4-pin Molex connectors to the connectors you require. You can typically purchase adapters for PCIe video, SATA power, or processor power cables. Purchasing a new power supply or video card would work, but would be more expensive than using an adapter.

Which printer management components would you use to view the port a printer uses? (Select TWO.) Print queue Print server properties Print queue properties Print spooling service Printer properties

Explanation Use the print server properties or the printer properties to view the port used by a printer. Print server properties displays printer ports used on the computer. The printer properties displays the port for the individual printer, as well as all printer ports for the computer. The Print Spooling service is a software process that captures print jobs from applications, places them in the print queue, and then sends each print job to the print device. The print queue is a location on the hard disk that holds print jobs waiting to be processed.

Which printer permission would you assign to a user so that she can pause the printer? Manage documents Manage this printer Print Pause printers

Explanation Users with the Manage this printer permission can pause the printer and edit the printer properties, but cannot manage any documents waiting to be printed. Users with the Manage documents permission can manage all documents in the queue (pause, resume, delete, or rearrange the order). Users with the Print permission can print using the printer. The Pause printers permission does not exist.

You need to connect a monitor that provides an HDMI port and a VGA port to a video adapter in a PC system that uses a DVI-D connector. Which of the following options would provide the BEST display quality at the lowest cost? It's not possible to connect this monitor to this PC. Use an adapter to connect the monitor HDMI port to the DVI-D connector on the PC. Purchase a new monitor with a DVI-D port. Use an adapter to connect the monitor VGA port to the DVI-D connector on the PC.

Explanation Using an adapter to connect the DVI-D connector on the video adapter to the HDMI port provides the best quality output at the lowest cost. Because DVI-D and HDMI both use digital signaling, the signal is not degraded during conversion. In fact, HDMI was specifically designed to support DVI-D signaling. DVI-D to HDMI converters can be purchased for less than $20.00 USD. Using a DVI-D-to-VGA adapter would allow you to connect the video board to the monitor; however, this type of adapter must convert digital signals to analog signals, which would likely degrade the signal slightly. Purchasing a new monitor with a DVI-D port would provide a high-quality signal, but would cost much more than the other alternatives.

You are providing telephone support for a user who is trying to connect a computer to a projector. You know that the projector only has a VGA port. How would you describe the connector that the user should look for? Rectangular with one beveled corner Round with 6 pins D-shaped with 25 pins D-shaped with 15 pins

Explanation VGA ports, also called DE-15 ports, are named for their characteristic D-shape and 15 pins. A D-shaped port with 25 pins is a parallel port. A round port with 6 pins is a PS/2 port. A rectangular port with one beveled corner is a DisplayPort.

Which printer management component would you use to view the drivers used by a printer? Print queue Print server properties Printer properties Print spooling service

Explanation View the printer properties to see the drivers used by a printer. You can also use the printer properties to view the port used by a printer, manage user permissions, and configure color management profiles. Use the print server properties to view all printer ports used on the computer. This function can also be used to view the print drivers used on the system, including drivers required by network users, notifications, and the spooler location. The Print spooling service is a software process that captures print jobs from applications, places them in the print queue, and then sends each print job to the print device. The print queue is a location on the hard disk that holds print jobs waiting to be processed.

You own a custom PC retail store. A small business client asks you to build three workstations for her organization: · Virtualization workstation · Video editing workstation · Thin client PC Drag and drop each PC hardware configuration on the left to the most appropriate workstation type on the right. Thin client PC · Intel Celeron dual-core 2.7GHz CPU · 320 GB SATA HD · 2 GB DDR3 RAM · Few or no applications installed Video editing workstation · Intel Core i7 six-core 3.4 GHz CPU · 1 TB SSD SATA HD · 16 GB DDR4 RAM · Video capture card Virtualization Workstation · AMD 12-core 4 GHZ CPU · 4 TB SATA HD · 32 GB DDR4 RAM · Hardware-assisted virtualization (HAV)

Explanation Virtual machines place a very heavy load on the host hypervisor's RAM and CPU. Therefore, the most important criteria to be included in the design for this workstation are the following components: · AMD 12-core 4 GHZ CPU · 4 TB SATA HD · 32 GB DDR4 RAM · Hardware-assisted virtualization (HAV) A thin client only needs to be able to connect to a remote desktop session. As such, it only needs to meet the minimum requirements for running Windows locally. The following hardware is sufficient: · Intel Celeron dual-core 2.7GHz CPU · 320 GB SATA HD · 2 GB DDR3 RAM · Few or no applications installed An audio/video editing workstation has specialized requirements to allow it to process media files. The following hardware is appropriate: · Intel Core i7 six-core 3.4 GHz CPU · 1 TB SSD SATA HD · 16 GB DDR4 RAM · Video capture card

A user has called to complain that her computer won't boot. It stops on the system startup screen right after the memory has been tested and displays a 301 keyboard error. Which of the following troubleshooting steps is the BEST to try first? Download and install the latest keyboard driver from the manufacturer's website. Verify that no keys are being pressed down during POST. Have the user remove all memory modules and replace them one at a time until the error reoccurs. Install a new keyboard on the computer. Check your keyboard settings in Control Panel. Verify that the latest UEFI firmware updates have been applied.

Explanation You should have the user verify that no keyboard keys are being pressed during POST. With any error, you should always check the obvious first. This error is almost always caused by a stuck key on the keyboard or something resting on a keyboard key. On rare occasions, you may need to install a new keyboard; however, you should look for these obvious problems first.

You are a PC technician for a national computer retailer. A business customer asks you to build three custom computers to be used by employees at a branch office: · CAD / CAM design workstation · Home theater PC · Virtualization workstation Drag and drop each PC hardware configuration on the left to the most appropriate workstation type on the right. CAD / CAM design workstation · 2 GB GDDR5 PCIe video adapter · 16 GB PC3-21300 DDR4 ECC RAM · 1 TB SATA HD Virtualization workstation · 32 GB PC4-21300 DDR4 RAM · 4 TB SATA HD · Integrated video adapter Home theater PC · HDMI output · Compact form factor · 5.1 channel surround sound adapter · TV tuner adapter

Explanation Virtual machines place a very heavy load on the host hypervisor's RAM and CPU. Video and audio performance is of secondary concern. Therefore, the most important criteria to be included in the design for this workstation would be: · 32 GB PC4-21300 DDR4 RAM · 4 TB SATA HD · Integrated video adapter A CAD / CAM workstation also places a heavy load on the the system CPU and RAM. In addition, because of the extensive mathematical calculations used by the software on these systems, it is strongly recommended that ECC memory be used. A high-end video adapter that uses GDDR5 memory instead of DDR3 memory is also recommended. The following hardware is sufficient: · 2 GB GDDR5 PCIe video adapter · 16 GB PC3-21300 DDR4 ECC RAM · 1 TB SATA HD A home theater PC (HTPC) is a dedicated system that is optimized to play media on a television set. The following hardware is appropriate: · HDMI output · Compact form factor · 5.1 channel surround sound adapter · TV tuner adapter

You have been tasked with designing a workstation that will run VMware Workstation virtualization software. A software engineer will use it to run virtual machines for application development and testing. Which of the following criteria should MOST likely be included in your design for this system? (Select TWO). HTPC form factor RAID 5 disk array Video card with HDMI output 64-bit processor with eight cores RAM configured to run in quad-channel mode

Explanation Virtual machines place a very heavy load on the host system's RAM and CPU. Therefore, the most important criteria to be included in the design for this workstation would be: · RAM configured to run in quad-channel mode · 64-bit processor with eight cores A video card with HDMI output and an HTPC form factor would be more appropriate for a home theater system. A RAID 5 disk array would be appropriate for a virtualization workstation, but is less important than the choice of processor and RAM.

A customer needs to use several applications. Currently, the computer cannot keep all the necessary applications open at the same time. Which of the following components should you consider upgrading? Memory Hard disk drive CPU System boardExplanation eSATAp (also known as Power over eSATA or Power eSATA) is meant to replace eSATA. It combines the functionality of eSATA and USB ports with a source of power in a single connector. It integrates data and device power into a single cable, and the connector and port are neither L-shaped nor rectangular. SATA1 is the original SATA standard. It provided 1.5 Gbps (150 MBps) data transfer. SATA2 supports up to 3 Gbps (300 MBps). SATA3 supports up to 6 Gbps (600 MBps). It mainly addresses solid state drives with SATA (hard disk drives are not capable of sending data at this rate). eSATA is a subset of other standards specifically for externally connected devices.

Explanation When an application is started, it is loaded into memory. If the computer does not have sufficient memory, the application cannot start. To remedy the problem, add more memory to the computer. Upgrade the hard disk to provide additional storage space for files. Upgrade the CPU to execute programs faster or to provide advanced processing features. Upgrade the system board to support new components, such as newer memory modules, CPUs, or bus types.

You are running Windows 10 on your computer. You want to decrease the time it takes to write data to your drives. To do this, you have decided to create a Windows software RAID system using a striped volume. Before you create the striped volume, which action MUST you take? Format your disks to use MBR partitions. Use a multi-partition volume on a basic disk. Format your disks to use GPT partitions. Convert basic disks to dynamic disks.

Explanation When creating a Windows software RAID on Windows 10, all of the drive used for the RAID system must be configured as dynamic disks. The step of formatting your disks comes after the step of configuring your drives as either basic or dynamic. Like basic disks, dynamic disks can use the MBR or GPT partition styles on systems that support both. With older versions of Windows, a basic disk included a multi-partition volume. To encourage the use of dynamic disks, multi-partition volume support was removed from basic disks and is now exclusively supported on dynamic disks.

You work for a company based in Phoenix, Arizona, which is a very hot and dry area. Several people in the research department have reported that even though their files are printing to their laser printer correctly, a much lighter copy of the same text also prints within 2 to 3 cm of the original text. Which of the following would MOST likely fix this type of ghosting image? Correct Answer: Vacuum the fuser assembly to clean off excessive ink toner. Correct Answer: Use a heavier weight paper to avoid paper shift. Correct Answer: Replace the imaging drum, as it is probably at end of life. Correct Answer: Remove the toner container and gently shake it to loosen clumped image toner.

Explanation When ghost images are within 2 to 3 cm of the original image, this is an indication that the ghosting is caused by the imaging drum. When a drum unit comes to the end of its useable life cycle, it may not discharge properly, leaving behind faint traces of the previous printing job. An imaging drum can also become defective and discharge incorrectly between print runs, also causing ghosting to occur. In either case, the best solution it to replace the imaging drum. Using heavier weight paper will not fix ghosting images. If the drum is bad, the ghosting will still be present regardless of the weight of paper. Heavier weight paper can actually cause ghosting to occur if the ghosting issue is the result of a faulty fuser unit. If this printer was in a high-humidity environment, it is possible that the toner may clump together inside the cartridge. When this happens, the toner powder does not get distributed evenly when printing, which can lead to ghost images on the page. However, Arizona is a very dry environment, so this probably isn't the issue.

You're troubleshooting an older laser printer that is creating accordion jams where the paper is crumpled as it exits the printer moving into the output tray. Which of the following will MOST likely fix this problem? Correct Answer: Replace the drum. Correct Answer: Replace the toner cartridge. Correct Answer: Replace the fuser wires. Correct Answer: Use heavier paper. Correct Answer: Install a maintenance kit.

Explanation You should install a maintenance kit. Accordion jams are usually caused by worn rollers. Replacement rollers are included in most maintenance kits. Replacing the cartridge, drum, or fuser wires is necessary to correct print quality problems.

The PCI sound card in your computer has stopped working. You decide to use the motherboard's integrated sound until you can replace the PCI sound card. After removing the PCI sound card and powering on the computer, you have no sound ,and the built-in sound card does not show up in Device Manager. To solve this issue, which of the following is the BEST action to try first? Update the drivers for the device. Enable the sound card in Device Manager. Edit the CMOS settings and enable the onboard sound. Update the necessary audio codecs.

Explanation When installing dedicated expansion card, you will typically disable the onboard device so that only the device you want to use shows in Device Manager. To make the onboard device detectable to Windows, enable the device in the CMOS settings. You cannot update the device drivers or enable the device until Windows can detect the device and it appears in Device Manager. An audio codec is a file format for saving audio files. Sound cards require codecs to play sound files; however, the sound card must be properly configured before a codec can be used.

A technician wants to connect a computer to a high-definition television (HDTV). The technician has attached an HDMI cable from the video card to the television, however, the video card is only sending a video signal over the cable. The technician decides to use the audio pass-through technique to deliver audio to the television. An audio output cable is connected to the video card and television. Which of the following options was used for the audio pass-through? HDCP DirectX/OpenGL HDMI out Multi-GPU

Explanation With audio pass-through, an audio output cable is connected to the video card. The video card combines the audio signal with the video signal for HDMI output. This option is often called HDTV out. Multi-GPU links video cards together to share the graphic processing load between the two GPUs. DirectX is a collection of application program interfaces (APIs) that improves graphic, animation, and multimedia creations. OpenGL is an alternative standard to DirectX that is used by some applications. Most video cards support both DirectX and OpenGL. HDCP is a method for protecting digital media.

If a printer is connected directly to a Windows workstation, what can be done to allow other workstations on the same network to send print jobs to this printer? Configure the workstation as a print driver. Configure the printer to be a print server. Configure the printer to be a shared printer. The printer can only be shared by disconnecting it from the workstation and connecting it to the network.

Explanation You can configure a printer attached to a Windows workstation as a network printer by configuring it to be a shared printer. This is done by accessing the Devices and Printers panel on the workstation and then opening the printer's Properties window and configuring the settings on the Sharing tab.

A user wants to use a laptop to display a presentation on a large TV monitor that has an HDMI connection. Which of the following laptop ports or connections can be used to add this display device? (Select TWO). USB port using a USB-to-Wireless dongle DisplayPort using a DisplayPort-to-HDMI cable USB port using a USB-to-RJ45 dongle USB port using a USB-to-HDMI adapter Expresscard connection using a Expresscard Ethernet adapter

Explanation You can connect a laptop to an HDMI monitor by connecting a DisplayPort-to-HDMI cable to the DisplayPort connection on the laptop and the HDMI connection on the monitor. You can also use a USB-to-HDMI adapter to convert the USB display signals from the laptop to HDMI signals, which are received by the monitor. A USB-to-Wireless dongle is used for networking, not for display monitors. An Expresscard Ethernet adapter is used for networking, not for display monitors. A USB-to-RJ45 dongle is used for networking, not for display monitors.

You have a computer with a dual-core 64-bit processor that uses the x86-x64 instruction set. You want to install the 32-bit application on the computer. Which of the following BEST describes the action you should perform? Install the application normally. Replace the processor with a 32-bit processor. During installation, install the 32-bit compatibility drivers. Edit the BIOS and configure the processor to run in 32-bit mode.

Explanation You can install a 32-bit application on a system with a 64-bit processor. If the processor runs the x86-64 architecture, the processor itself is capable of running the 32-bit application without modifications.

You have an existing computer running Windows 10. You want to configure a RAID 1 array in the computer. You install two new SATA drives, then use the RAID controller integrated in the motherboard to define a RAID 1 array using them. When you boot the computer, Windows does not show the logical RAID drive. What should you do? Set the jumpers on the drives to use SATA I mode. In the BIOS, change the SATA disk mode to RAID. Install the drivers for the RAID controller. In the BIOS, change the SATA disk mode to AHCI.

Explanation You must install the RAID driver so that Windows recognizes arrays created by the motherboard RAID utility. Without the driver, Windows will not be able to see the logical drive defined by the array. When you define the array, you configure the BIOS to use RAID as the SATA type. If you had not completed this step, you would not be able to run the RAID configuration utility. Use AHCI to configure SATA drives to support hot swapping.

A customer has brought a computer in to be repaired. He said he thinks that the sound card has stopped working because no audio is produced when music, video, or DVDs are played. Which troubleshooting step should you take first? (Select TWO.) Replace the sound card with a known good spare. Download and install the latest sound card drivers. Verify that no IRQ or I/O port address conflicts exist between the card and other devices in the system. Verify that speakers are plugged into the correct jack and are powered on. Verify that the volume isn't muted.

Explanation You should first verify that the speakers are plugged in correctly and powered on. You should also verify that the volume isn't muted in the operating system. Before investigating more complex possibilities, you should always check the obvious first when troubleshooting computer problems. The other actions might need to be performed if checking the obvious solutions does not correct the problem.

You're responsible for ordering consumables for your organization's printers. Users print from these printers frequently and demand the utmost in reliability. Which of the following would be the BEST option when ordering new toner for these printers? Correct Answer: Toner refill kits. Correct Answer: Remanufactured cartridges from a recycler. Correct Answer: Toner cartridges recommended by the printer manufacturer. Correct Answer: Discount toner cartridges from a third-party manufacturer.

Explanation You should order the toner cartridges recommended by the printer manufacturer. Because reliability is paramount in this scenario, you should avoid using discount or remanufactured cartridges or toner refill kits.

You're conducting scheduled maintenance on a laser printer. You notice that there is a build-up of excess toner inside the interior of the printer. Which of the following is the BEST way to remove the excess toner? Correct Answer: Use an anti-static vacuum. Correct Answer: Wipe it out with a wet, soapy rag using a mild detergent. Correct Answer: Sweep it out with a small broom. Correct Answer: Blow it out with compressed air.

Explanation You should use an anti-static vacuum to remove excess toner from the interior of a laser printer. You should avoid using removal methods that will disperse the toner into the air, such as compressed air or a broom.

This question includes an image to help you answer the question. View Image Joseph has started using virtual machines (VMs) to help his software development process. As the number of VMs has increased, Joseph has noticed that his hard drive is almost full. He would like you to buy and connect an external hard drive where additional VMs can be stored. When the drive arrives, you find it has the type of connector shown in image 1. Which type of connector is on the external hard drive? SCSI VHDC SCSI eSATA SATA

Explanation eSATA, or external SATA, allows the use of shielded cables outside of an enclosure. Shielded eSATA cables are available up to two meters in length. eSATA cables are not the same as SATA I cables; they are shielded and have a different connector than the L-shaped design of internal SATA I connectors. This prevents the use of unshielded internal cables in external applications. eSATA uses a point-to-point connection; therefore, each eSATA drive needs to be connected to its own eSATA port.

You want a storage device that has the ability to: · Integrate data and device power into a single cable. · Use a connector and port that is neither L-shaped nor rectangular. Which of the following SATA devices is the BEST to use? eSATAp SATA2 SATA SATA3 eSATA

Explanation eSATAp (also known as Power over eSATA or Power eSATA) is meant to replace eSATA. It combines the functionality of eSATA and USB ports with a source of power in a single connector. It integrates data and device power into a single cable, and the connector and port are neither L-shaped nor rectangular. SATA1 is the original SATA standard. It provided 1.5 Gbps (150 MBps) data transfer. SATA2 supports up to 3 Gbps (300 MBps). SATA3 supports up to 6 Gbps (600 MBps). It mainly addresses solid state drives with SATA (hard disk drives are not capable of sending data at this rate). eSATA is a subset of other standards specifically for externally connected devices.

Consider the expansion and memory slots highlighted on the motherboard diagram below. Select the PCI, PCIe x16, and PCIe x1 slots. (Select FOUR).

Explanation · PCI slot (top-left, colored white): used to connect PCI expansion boards. · PCIe x16 slots (right of the PCI slot, colored blue): used to connect PCIe x16 expansion boards. · PCIe x1 slot (right of the PCIe x16 slots, colored white): used to connect PCIe x1 expansion boards.

Consider the connectors highlighted on the motherboard diagram below. Select the USB connectors. (Select ONE).

Explanation · USB connectors (middle-left): used to connect external USB devices.

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