GC4L A Plus Core 1 - 220 - 1101

Match the following Cable types to their Device or Technology

- RJ11=Phone - RJ45=802.3 copper LANS - F type=Cable Modem - Straight tip (ST)= 802.3 copper optical LANS - Subscriber connector (SC)=CATV or test equipment - Lucent connector (LC)=Gigabit Ethernet, Video and Multimedia - Punchdown block=MDF - microUSB= GPS Device, Digital cameras, Photo Printers - miniUSB=digital cameras, smartphones, and tablet computers - USB-C=Computers, phones, game consoles, tablets, and smartphones - Molex= DC power to the drives inside a PC - Lightning port=Apple mobile devices, iPhones, iPads, and iPods - DB9= keyboards, mice and joysticks, console cable, ( RS 232)

Michael just purchased a touch pen that uses Bluetooth connectivity, he is not very tech savvy, so Carolyn offers to set it up for him. Based on the step of the Bluetooth connection process what will Carolyn suggest he do after the laptop has found the touch pen for pairing?

1.4 Given a scenario, configure a basic mobile-device network connectivity and application support: Set in setting Bluetooth: - Enable Bluetooth, - Enable pairing, - Find a device for pairing, - Enter the appropriate PIN code, and - Test connectivity

Carolyn, an IT consultant, has a job that is in a remote location she decides to ensure she has a mobile device that has an app with all the maps of the rural locations on it to ensure that she does not get lost. She looks at the map and notices that the purple dot indicating where she is going has not moved since she left the office. What should Carolyn enable on her mobile device for the app to work?

1.4 Given a scenario, configure basic mobile-device network connectivity and application support: Location services on a mobile device included Global Positioning System (GPS) services and Cellular location services to determine your approximate location.

What port number is Post Office Protocol (POP3)?

110 - Post Office Protocol 3 (POP3), Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

What port number is Internet Message Access Protocol (IMAP4)?

143 - Internet Mail Access Protocol (IMAP), Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

What port number is SNMP?

161/162 - Simple Network Management Protocol (SNMP) CompTIA A+ Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

Carolyn a Network engine is working on a ticket where files are not uploading or downloading for an FTP communication server. Which two port numbers would she investigate and ensure are opened to enable communications for FTP?

2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes: FTP uses port 20 for data transfer and 21 for control. The File Transfer Protocol is a standard communication protocol used for the transfer of computer files from a server to a client on a computer network. FTP is built on a client-server model architecture using separate control and data connections between the client and the server.

What port number is FTP (File Transfer Protocol) Control?

20/21 - File Transfer Protocol (FTP), Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

What port number is SSH (Secure Shell)?

22 - Secure Shell (SSH), Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

What port number is Lightweight Directory Access Protocol (LDAP)?

389 - Lightweight Directory Access Protocol (LDAP), Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

Eric an end-user reports a printer error that states "Replace filament". He calls Danielle at the help desk; Danielle wants to research the issue before she goes to a printer that has the error. What type of printer should she research?

3D printers use a filament, so the error "replace filament has to be a 3D printer. 3D printer filament is produced into one continuous slender plastic thread in hundred meters long, which is usually spooled into a reel for purpose of storage and printer feeding.

A user is unable to access getcertified4less.com and has reported connectivity issues with popups on the screen. Eric a technician removes malware, and then is able to ping the router and access getcertified4less.com. What should Eric do NEXT in the troubleshooting methodology? (Choose two.)

5.1 Given a scenario, apply the best practice methodology to resolve problems: step 5 verify full system functionality and, if applicable, implement preventive measures (run virus scan) and step 6 document the findings, actions, and outcomes.

What port number is DNS (Domain Name System)?

53 - Domain Name System (DNS), Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

What port number is HTTP?

80 - Hypertext Transfer Protocol (HTTP), CompTIA A+ Objective 2.1 Compare and contrast Transmission Control Protocol (TCP) and User Datagram Protocol (UDP) ports, protocols, and their purposes.

Carolyn is determining the BEST use for half of her employees that do not have a heavy application workload. What is Carolyn's BEST use-case scenario for a Chrome OS device?

A Chromebook is a laptop or tablet, sometimes called a netbook, running the Linux-based Chrome OS as its operating system. Initially designed to heavily rely on web applications for tasks using the Google Chrome browser. In an enterprise environment, it is a great alternative for users that only need Web and email access.

Teri has an iPad and she needs a cable to charge and transfer data. She knows the cable is normally used for apple devices. What type of cable should Teri use?

A Lightning connector is a proprietary connector developed by Apple for its mobile devices as well as a few other external devices.

Nick is supplying corporate laptops. These laptops also need user security, charging ability, access to LAN resources, connected removable hardware, and connect additional monitors. Which of the following would be the BEST solution for all of these requirements?

A docking station meets the needs of all the requirements including security, charging, accessing the LAN, connecting removable hardware, and connecting additional monitors.

Carolyn a systems administrator is configuring a physical server to host several virtual machines. She configures the physical server and is ready to begin provisioning the virtual machines. What technology will she need to create the VM's and complete the project?

A hypervisor, also known as a virtual machine monitor or VMM, is software that creates and runs virtual machines (VMs).

Michael's laptop is shutting down unexpectedly. Carolyn discovers the shutdowns only happen when the laptop is moved from one room to another. Carolyn reseated the hard drive, memory, battery, and LCD cable, but the laptop continues to shut down. What does Carolyn thinks is the MOST probable cause of the issue?

A loose battery terminal affects the flow of electricity. If a laptop turns off immediately when you unplug it from a power source, it means your battery is not working or the battery connection terminal connecter is loose.

Carrie tests a few Wi-Fi systems before her ISP connects the network to the internet. To perform this test, she decides to use a mobile device sharing its Internet connection with other Wi-Fi-capable devices currently on-site? What method is she using?

A mobile hotspot, when enabled, allows a mobile device to share its Internet connection with other Wi-Fi-capable devices. can also be called "Wi-Fi tethering" or Phone as a Modem (PAM)

Eric has to test all desktop motherboards that have some issues with power on. He wants to first test to see if they are all receiving power. To do this, which of the following tool can be used to test if power is being supplied to a motherboard?

A multimeter is used to detect and measure electrical currents. It can give readings on voltages, wattages, and amps, among other electrical measurements.

Carolyn needs additional RJ45 connections on her lab workstation. What is the best way for Carolyn to accomplish this?

A network interface card or NIC inserted into an expansion slot will provide the extra RJ-45 connections without replacing the motherboard.

Sarah has several Bluetooth devices connected in an ad hoc network what type of network is she using?

A personal area network (PAN) connects electronic devices close to the user, such as a wireless mouse, a keyboard, and a computer.

Gaye is a Networking Engineer and has a subnetwork on floor 1, a subnetwork on floor2, and a subnetwork on floor3. Which device can she use to connect all floors?

A router connects one network to another. A router is a device that connects two or more packet-switched networks or subnetworks.

Which device protects your computer equipment by quickly terminating the power connection?

A surge suppressor protects your computer equipment by quickly terminating the power connection in the event of spikes or surges

Nina is looking for low-cost solutions for a restaurant client, which of the following devices will provide Nina with the portability of a mobile phone and functionality of a laptop/desktop?

A tablet or Tablet computer supports the functions between a laptop computer and a smartphone.

Carolyn is setting up a VM for use in testing software deployments. The VM is offline, but the hypervisor is not. what is causing this issue for Carolyn?

A virtual CPU (vCPU) also known as a virtual processor, is a physical central processing unit (CPU) that is assigned to a virtual machine (VM).

Two or more LANs connected over a large geographic distance is called a what?

A wide-area network (WAN) is a network in which two or more LANs are connected over a large geographic distance—for example, between two cities. The WAN requires connections to be provided by a telecommunications or data communications company.

A user brings in a smartphone for repair. The device is unable to send/receive calls or connect to WiFi. All applications on the device are working unless they require connectivity. Which of the following is MOST likely causing the problem?

Airplane mode is designed to turn off all the Bluetooth, Wi-Fi, cellular, and data connections on your mobile device, which might otherwise interfere with the various sensors and equipment on commercial airplanes.

What identifies a machine on a network expressed as a set of four numbers separated by periods?

An IP address is a string of numbers separated by periods. IP addresses are expressed as a set of four numbers — an example address might be 192.158.1.38. Each number in the set can range from 0 to 255. So, the full IP addressing range goes from 0.0.0.0 to 255.255.255.255. RFC 791

Which of these IP address represent a multicast Range?

An IPv6 multicast address defines a group of devices known as a multicast group. ff00::/8 is an IPv6 multicast address ff00 with a prefix of 8. Reference RFC 3513.

Danielle is an IT technician at a newly formed retail company, what type of peripherals should she uses if the retail company want quick inventory reports and update pricing tags for all product on the retail floor? (Choose two.)

Barcodes are read by scanning them with a barcode scanner. Magstripes are read by swiping them through a magnetic card reader.

What system which serves as software stored on the ROM chip of the motherboard, is called, it controls and manages system boot?

Basic input-output Systems (BIOS) are responsible for controlling and managing processes such as system boot and interaction with other components on the motherboard. BIOS is the program a computer's microprocessor uses to start the computer system after it is powered on.

The dye-sublimation printing technique is an example of what method of color printing?

CMYK colors are a combination of Cyan, Magenta, Yellow, and Black. Printers often present colors using CMYK color values.

Ruth, a System Administrator is researching a solution to allow traveling salespeople to access the Internet from many different locations in the United States that may or may not have Wi-Fi. Which of the following is the BEST technology should Ruth recommend?

Cellular WAN uses a phone or other mobile device to send data over standard cellular connections.

Teri is working on a new requirement for New Laptops. She knows that processor speeds determine how fast the processor executes its commands or instructions. What type of measurement should she look for on these new processors?

Central Processing Units (CPU) process tasks of 1 billion times per second, which is a gigahertz. CPU clock speed, or clock rate, is measured in Hertz — generally in gigahertz or GHz. A CPU's clock speed rate is a measure of how many clock cycles a CPU can perform per second. A CPU with a clock rate of 3.5 GHz can perform 3,500,000,000 clock cycles per second

Carolyn is working on picking a cloud provider her main priority is the growth and demands of her company. What cloud computing concept will allow her the scalability she is requiring?

Cloud Rapid Elasticity is the property of a cloud to grow or shrink capacity for CPU, memory, and storage resources to adapt to the changing demands of an organization.

What does code-division multiple access (CDMA) do?

Code-division multiple access (CDMA) is a channel access method used by various radio communication technologies. CDMA is an example of multiple access, where several transmitters can send information simultaneously over a single communication channel.

Michael a help desk technician just opens an ATX desktop what components will he find inside the ATX desktop? (Select the three best answers.)

Common components inside an ATX desktop include the CPU, motherboard, RAM, PSU, adapter cards, hard drives, optical drives, expansion cards, and graphic cards.

How many pins for a DDR3 SDRAM module?

DDR3 dual-inline memory modules (DIMMs) have 240 pins and are electrically incompatible with DDR2.

How many pins for a DDR4 SDRAM?

DDR4 has 288 pins. The DDR4 key notch is in a different place, and the edge connector looks like a slightly curved "V" to facilitate insertion

Nina, a System Administrator is using Google Admin Toolbox Dig (DNS) she is verifying the DNS AAAA records what type of information is she looking for?

DNS AAAA records match a domain name to an IPv6 address, RFC 3596. CompTIA Objective Compare and contrast common network configuration concepts.

Carolyn a Sale Engineer is traveling with Nina on the Marketing team, they will be attending several trade shows all over the world. Carolyn is making sure they both have the computers with the maximum amount of RAM, CPU, GPU, and SSDs. What should Carolyn's biggest concern be when choosing a power supply?

Different countries use power supplies at different input voltages usually 110V or 220-240V and AC frequencies usually 50 Hz or 60 Hz. The computer will work with a power supply in a different country as long as you have an appropriate power adapter.

Teri's end-user has a laptop with a crashed hard drive. She is thinking of replacing it with a newer SSD, However, she is going to think of some of the disadvantages that SSDs have versus HDDs. What are they? (Choose two)

Disadvantages: SSD has less storage capacity than HDDs, can be expensive, difficult to recover data if it fails and lifespan is shorter.

What RAID types use drive mirroring to provide redundancy?

Disk mirroring, also known as RAID 1, is the replication of data to two or more disks.

Nina just finished with a server that malfunctioned and has been fixed after replacing a failed HDD and NIC. all enterprise services have been restored. What is the final step that Nina should do?

Documenting findings, actions, and outcomes is step #6, or the last step, of the troubleshooting process

Carolyn works as the IT administrator for a remote state-building. Gwen is a remote user in the accounting department and would like to increase her productivity. Gwen has a local account database she uses and she also connects to a cloud base Account database. Gwen wants to be able to see both databases easier for more efficiency. Which of the following configuration changes would provide the BEST solution for Gwen?

Dual monitors have been proven to increase productivity. Providing Gwen with a second monitor will allow her to easily compare work in both account databases on two separate screens.

Danielle is looking to increase the functionality of her company's current desktop computers. Which of the following will not work by just installing a new expansion card on those PCs?

Expansion cards are primarily installed to add additional capabilities to the computer. An expansion card can be used to add additional monitors, more network interfaces, or add other services.

What acts as the link between hardware and software it has programming code contained inside a hardware chip?

Firmware is a type of software that is etched directly into a piece of hardware. It works between software and hardware to facilitate the functioning of the integrated circuit chips, adding card functionality.

Carolyn wants to upgrade and modify the BIOS on several computers. What is the process call she will be using?

Flashing the BIOS is when you replace or modify its contents.

Michael wants to verify that IPv4 and IPv6 are working properly on a computer NIC. Michael should issue which commands?

For IPv4, use the command ping 127.0.0.1. For IPv6, use the command ping ::1.

Teri is creating a security framework for laptops; What type of technologies will best help her meet the goal to keep the data on a laptop safe if lost or stolen?

Full disk encryption protects a disk in the event of theft or accidental loss. It encrypts the entire disk including swap files, system files, and hibernation files.

Danielle is looking at the low-cost and Longer live option for the 20 laptops running MS Access; what type of disk drive storage technology would she use?

Hard Disk Drive (HDD) is the technology needed for this scenario; HDD is magnetic, lower cost, and has a longer lifespan.

Danielle wants to purchase a new home computer. The machine will mainly be used for Internet browsing and streaming video, except on weekends when her son will use it to play games with friends. Which of the following should she focus on to meet these requirements? (Choose two.)

Having more cores is crucial when running highly complex tasks that require a great amount of processing power. These include gaming and video-encoding, and RAM usage allows more applications to run simultaneously.

Carrie, a Help Desk technician, receives a ticket that a customer's mobile device cannot connect to Wi-Fi. The customer confirmed it was fine when asked if it was working yesterday. To troubleshoot this, which of the following statements best describes the recommended course of action? (Select the three best answers.)

If a mobile device cannot connect to the network, attempt to power cycle the device, forget and reconnect to the Wi-Fi network, and check the correct SSID.

David is setting up a 802.11ac wireless network which of these channels can he use to setup the network?

In the 2.4 GHz band, 1, 6, and 11 are the only nonoverlapping channels. Selecting one or more of these channels is an important part of setting up your network correctly.

Getcert4less has three locations within city limits that need to be networked. All three locations need a minimum of 1GB based on vendor network requirements for the new application. What the types of networks are BEST needed to ensure internal office and office-to-office networking connectivity? (Choose two.)

LAN stands for Local Area Network. It is a network that connects a group of computers across a short distance. MAN stands for Metropolitan Area Network. It covers a broad geographical area, such as cities and towns.

What disk performance measure indicates the amount of time it takes for a sector to move under the read/write head?

Latency is the amount of time it takes for a sector to move under the read/write head in disk performance and is measured in milliseconds

Sarah, has been tasked with MDM. Which is one of the features that Sarah may not be able to accomplish with a standard MDM solution.

Mobile device management products do typically support remote wiping, application management, configuration management, device location, carrier unlocking, remote wiping, and remotely troubleshooting.

What size DIMM is used by desktop DDR4 SDRAMs?

Modern DIMMs based on double data rate fourth-generation (DDR4) SDRAM chips use 288-pin connectors to attach to the computer motherboard to enable the increase in data throughput. As clock speeds of the RAM chips increased, the 64-bit path handled increasing amounts of data.

Tommy is a consultant and wants to find a payment solution for a retail client. Does he want to use a technology that will allow wireless payments?

Near-field communication (NFC) is a wireless technology that allows making payments wirelessly to some point-of-sale (POS) systems. NFC devices can act as electronic identity documents and keycards. They are used in contactless payment systems and allow mobile payment replacing or supplementing systems such as credit cards and electronic ticket smart cards.

Carrie, a help desk technician, assists Michael; he runs Windows 7 on a laptop. He indicates that his screen has become very dim. Carrie has him adjust the brightness and power setting, but it does not help the problem. Carrie considers replacing what piece of technology?

On an older laptop, the inverter has failed and needs to be replaced. The backlight may not be receiving any power from the inverter. An inverter is a small circuit board in a laptop computer that converts DC voltage inside the laptop to AC voltage to the backlight.

Carolyn, an IT Tech, is using port 23 to connect to a remote client computer. How can she determine that the remote client computer is using DHCP?

Port 23 is Telnet, this indicates she is on the CLI. In Windows, ipconfig is a console application, it allows you to get the IP address information of a client computer such as IP addresses (DHCP-assigned specifically), and even your DNS cache.

A PSU will convert 120V or 240Vpower into how many volts of DC Power? (Choose Three).

Power supplies Unit (PSU) will convert 120V or 240V alternating current (AC) into 3.3V, 5V, or 12V of direct current (DC), power, each of which is known as a rail. The term comes from the power lines on motherboards. Power must be available throughout a motherboard; hence, voltage lines tend to run in long strips like railroad tracks.

Carolyn just installed a maintenance kit for a laser printer. What is her NEXT step?

Print a test page after doing preventative maintenance to a laser printer. CompTIA A+ Objective 3.7 Given a scenario, install and replace printer consumables.

Michael is working with a bank of HDD and he wants to push the maximum performance on this array. He is not concerned with Fault Torrance so he uses RAID 0. RAID 0 is what?

RAID 0 (disk striping) is the process of dividing a body of data into blocks and spreading the data blocks across multiple storage devices, such as hard disks or solid-state drives (SSDs), in a redundant array of independent disk (RAID) groups. It is best used for noncritical storage but requires high-speed reads and writes.

Nina is working on troubleshooting a RAID configuration. She discovered that when one of the drives failed all data was lost and its configuration provided zero redundancy. What type of RAID must have been implemented?

RAID 0 provides striping of data across multiple drives which increases performance, However, provides no-fault tolerance and zero redundancy

Michael a PC technician is installing new memory in a PC, what is the most likely type of memory he is installing?

RAM is the Primary Memory used by the OS and Applications. Random-access memory (RAM) is a computer's short-term memory, where data that the processor is currently using is stored temporarily. RAM memory can be accessed much faster than data on a hard disk, SDD, or other long-term storage devices, which is why RAM capacity is so important for system performance.

Which of these technology works with data and application codes?

Random-access memory (RAM) is a form of computer memory that can be read and changed in any order, typically used to store working data and machine code.

Carolyn is working with some Junior technicians, one of the techs asks her "where is the BIOS stored?" What was Carolyn's response?

Read-only memory, (ROM), is a type of computer storage containing non-volatile, permanent data that, normally, can only be read, not written to. A computer's basic input/output system (BIOS) is a program that's stored in nonvolatile memory such as read-only memory (ROM) or flash memory, making it firmware.

RAID stands for

Redundant array of independent disks or redundant array of inexpensive disks (RAID) is a way of storing the same data in different places on multiple hard disks or solid-state drives (SSDs) to protect data in the case of a drive failure.

Danielle is working with a client that needs a network connector to connect telephones and connect to a DSL network? What connects is the best choice?

Registered Jack-11 (RJ-11) is a telephone interface that uses a cable of twisted wire pairs and a modular jack with two, four, or six contacts. the RJ-11 is a common connector used for telephone systems. A network modem receiving DSL (digital subscriber line) or broadband Internet travels through this connector.

Carolyn has a user that accidentally spills coffee on a laptop. One of the concerns of the user is how much will it cost to fix. What should Carolyn do next to verify if the device is repairable before presenting a price? (Choose two.)

Remove the case and organize the parts and see what can be used once dried and document the screw locations via writing, notes, camera, or user manual, this will allow the reassemble even if new parts need to be ordered.

How many pins for SODIMM DDR3 SDRAM module?

SO DIMM sockets are designed for the latest DDR4, for DDR3 SO DIMM sockets, the pin count is 204 pins; for DDR4 SO DIMM sockets, the pin count is 260 pin

Carolyn's company has three geographically separate locations that need to connect using a VPN. She wants to ensure that VPN Traffic is allowed on her network what device does she need to configure?

She wants to ensure the firewall does not stop VPN traffic. Improper configuration in her firewall rules could allow traffic from the Internet to get through to the inside by slipping through using VPN addresses.

Single-mode fiber optic cabling uses what type of light to carry signals?

Single-Mode is a type of fiber-optic cabling that can carry only one signal at a time. Single-mode fiber-optic cabling uses light generated by a laser-emitting diode to carry signals.

David has signed up to getcert4less web-based exam preparation calendar application. What NIST cloud model is David purchasing?

Software as a service (SaaS) is a software distribution model in which a cloud provider hosts applications and makes them available to end end-users on the internet.

Willie is using Wireshark, he wants to see the protocol that guarantees delivery of a packet of information across the network and will resend the packet if its arrival is not acknowledged. What type of protocol is Willie looking for? (Choose two)

TCP is a connection-oriented protocol. It requires a logical connection to be established between the two processes before data is exchanged, call the three-way handshake. The connection must be maintained during the entire time that communication is taking place, then released afterward.

Eric reports his PC is continuously rebooting. Michael is on Desktop Service duty and he thinks the problem may the new GPUs that were just installed, what is Michael's next move based on the CompTIA 6-step best practice methodology to resolve problems?

Test the theory by inspecting, reseating, and/or reinstalling the GPU. Once the theory is confirmed, determine the next steps to resolve the problem- If the theory is not confirmed, re-establish a new theory or escalate

Where would Gwendolyn an IT professional obtain information about a hazardous substance she and her team are working with?

The Hazard Communication Standard (HCS) requires that the manufacturer, distributor, or importer provide Safety Data Sheets (SDSs) (formerly MSDSs or Material Safety Data Sheets) for each hazardous chemical to downstream users to communicate information on these hazards.

Danielle is working with a customer looking for a MIDI solution that will not be too costly. Danielle decides to use a USB-to-MIDI interface on a new laptop for her customer. What is Danielle connecting to her customer's new laptop?

The Musical Instrument Digital Interface (MIDI) is a standard digital connection used primarily for musical instruments. MIDI is a standard protocol for interconnecting computers with musical instruments, stage lighting, and other time-oriented media.

Where is the complete path or combination of interconnected paths for electron flow in a computer?

The System Board also known as the Motherboard contain computer circuitry, which makes up the internal parts of the computer. It is the computer's main circuit board.

Carolyn is troubleshooting a Windows CAD workstation that is running slow. The computer uses RAID 10, dual GPU cards and 8-core CPU. Michael states that the CAD application runs faster on an identical workstation. What should Carolyn do first to troubleshoot this issue?

The Windows event log is a detailed record of system, security and application notifications stored by the Windows operating system that is used by administrators to diagnose system problems and predict future issues.

Carolyn, an IT administrator, receives a call from Michael, an End-user. Michael wants to remotely backup his music and photos stored on his android tablet. He is concerned that a Company policy states that company resources cannot be used for personal data. Which technology is the BEST solution that Carolyn would recommend Michael should implement?

The best she would recommend is the Google Cloud solution so that files can be backed up to a location that is not a company resource. Google Cloud backup—or full synchronization method—is excellent for Android-based smartphones or tablets and Google Chromebooks. Keep in mind there are other solutions available.

What is the difference between white and black in an LCD monitor?

The contrast ratio is a property of a display system, defined as the ratio of the luminance of the brightest shade to that of the darkest shade that the system is capable of producing. A high contrast ratio is a desired aspect of any display. The contrast ratio identifies the relative difference between white and black. A higher contrast ratio means a better screen.

Jeff reports that printing on heavy cardstock paper results in the image smearing if touched. Nancy tested this with plain paper and the problem does not seem to appear. What should Nancy do NEXT in the troubleshooting process?

The fuser melts the toner particles, binding them to the page. The Fuser operates in the temperature range of 175 - 215o C (347-419o F). The temperature will vary depending on the type of media selected.

Michael wants to print a large file on both the front and backside of the paper. What settings can he pick in the configuration options to allow this?

The printer duplex option will allow two-sided printing. Duplex printing means that he can print on both sides of the paper with the printer either automatically or manually by turning the paper over after the first side has been printed. To duplex print, the model will need to have the functionality built-in.

Teri is a trainer she often teaches courses in a classroom located on-campus or onsite at the customer location. In her office, she has two external monitors connected to her laptop, and she can display different content on each monitor. However, when teaching, she only has your laptop and a projection unit. To make teaching easier, she wants the same content to show on both the laptop monitor and the projection screen. what is the best option for Teri?

To display the same content on your laptop, monitor and projection screen, she will need to duplicate the displays.

Carolyn is working with a Geographic firm she supplies the GIS team with a new convertible laptop, that can be used as a regular laptop or folded into a tablet computer. Carolyn is also suggesting adding a touch pen to use with their new computer. Which of the following is NOT an advantage of a touch pen?

Touch pens are great for handwritten notes, easy to use, weather-resistant, have more precise contact registers, and are more sanitary than bare fingers. However, they do have compatibility, not all pen drivers work with all laptops.

Carolyn's network is experiencing dropped packets and she what to find out where on the route to the destination this may be occurring on the network path. She determines she needs to use a Window utility that will help her find out where it is occurring. What tools is Carolyn about to use?

Tracert is a Windows utility that is used to trace the path to a destination. Each router along the path responds with a message so you can see the path the packets take, and if there is a failure along the way, you can see where the traffic is stopping. Linux and macOS use the traceroute diagnostic tool, which is similar to the Windows tracert utility.

Michael is looking at affordable laptops for his office administrators. He decides on an LCD technology that is economic and good for general use with office applications. That LCD technology is the MOST economic feature Michael can use?

Twisted nematic (TN) A type of LCD panel technology. TN panels have relatively narrow viewing angles, especially in the vertical direction. Color reproduction is poor; however, it is economical and suitable for general uses, particularly office tasks.

Teri is working with Gwendolyn on a new charging and data ports that she received with her new device. Gwendolyn asks Teri which direction do I use to connect the cable to her device. Teri replies with it does not mater, it is a non-directional connector. What type of connector MUST Gwendolyn be using?

USB Type-C is designed to be bi-directional.

Jeremy wants to implement a stateful packet solution in an internet appliance that will be between the PC and the internet and act as a gateway. The purpose Jeremy is attempting to achieve a translation of traffic between the private and public networks. What type of appliance will assist Jeremy with his implementation? (Choose two)

Unified threat management (UTM)is information security that provides a single point of protection against threats, including viruses, worms, spyware, and other malware, and network attacks. A proxy server is a computer system or router that functions as a relay between client and server. It helps prevent an attacker from invading a private network and is one of several tools used to build a firewall.

Teri is been assigned to connect computers and other devices to the network. Teri has little experience doing this. She is told that the network requires zero configuration. What technologies are working in this scenario?

Universal Plug and Play (UPnP) is a network protocol that allows compliant devices to automatically set port forwarding rules for themselves. Also defined as A zero-configuration network is an IP network that is configured without using any manual configuration or configuration servers. This setup allows someone without networking expertise to connect computers, printers, and other network devices and receive automatic network functionality

Which of these technologies could Teri use to attach a M.2 SSD directly to a motherboard?

Unlike standard HDDs and SSDs, M. 2 drives aren't connected to a motherboard via a cable, they're instead plugged directly into the motherboard using a dedicated M. 2 connector slot.

Teri, an IT Manager is looking for a solution for one of the users at her organization that will be attending six day-long conferences and wants to make sure a mobile device will have enough power for the events. The event will have little access to AC outlets, and the user will continually use mobile devices during the event. The user also must be able to access the USB port for updates, what should Teri's less-cost recommendation be?

Using the wireless charging pad for the mobile device. Which can be charged each day before the event.

Michael is working with his marketing department; His main goal is to ensure that video card color depth and resolution are appropriate for the Marketing Department's needs. What two factors should Michael focus on to best match the video card goal for his marketing department?

Video card color depth is measured using bits and colors such as 16-bit or 65,000 colors and resolution is measured using pixels such as 1280 x 1024. Color depth, also known as bit depth or pixel depth, refers to the number of bits per pixel on a computer monitor and is used to represent a specific color. And the graphics display resolution is the width and height dimension of an electronic visual display device, measured in pixels.

Eric, a Sale Engineer is taking his computer overseas. What power requirement should he take under consideration?

When using electronics in a foreign country that uses 220 volt / 50 Hz power, you will need an adapter that allows you to plug into the foreign outlets. Voltage in the electrical network in Europe, Russia, Australia, China, Africa, UAE, some parts of South America, and other countries. Technically it means 220 to 240V AC (alternating current), 50 Hz. (230 AC)

John gets a call from an employee that is concerned that they will not be able to put their laptop into a power supply as often as they like. Which features should Johnny recommend that will save the battery life of their laptop significantly if disabled to alleviate the employee's concerns? (Choose two.)

Wireless signals such as WiFi or Bluetooth eat a lot of battery power as they require dedicated hardware components to run continuously. Make sure to switch off Bluetooth every time you take off your headset. You can also switch to wired Ethernet whenever possible, as well as used wired input devices, like a USB keyboard and mouse. This will help conserve power and improve battery life.

Carolyn is supporting one of her customers remotely and she wants her customer to display the computer's network settings, what command will Carolyn ask the customer to execute on the CLI?

ipconfig ("Internet Protocol configuration") is a Microsoft OS console application program executed on Command Line Interface (CLI) that will displays all current network configuration values, display several network Interface cards (NIC) information such as IP address, Subnet, Prefix, interface index, Domain Gateway, and others.