Comptia A+ 1101

What is the typical use for virtual desktop platforms based on guest OS hypervisor?

testing and development

A printer technician receives a complaint from multiple users sharing a laser printer that the pages they are printing are faded or faint. Upon troubleshooting, the technician ruled out user and server settings. What hardware component of the laser printer needs replacing to fix this error?

If user settings can be ruled out, it is common that the toner cartridge has simply run out of toner and needs to be replaced.

Which port does SSH use?

SSH uses port 22. POP3 uses port 110. RDP uses port 3389. FTP uses port 21. SMTP uses port 25.

Which of the following types of USB connections can support data rates of up to 480 Mbps?

USB 2.0

What voltages does an ATX12V P1 connector provide for the motherboard?

3.3 V, 5 V, 12 V

A laptop technician in a large corporation needs to upgrade the hard drives on employee laptops. Currently, the laptops have standard 5400 rpm 500 Gb magnetic drives. The technician needs to know what physical drive size to order. What is the normal size for a laptop magnetic drive?

A 2.5-inch drive is the standard size for a laptop magnetic HDD. On laptops, it is also important to consider the depth of the drive, since those vary by manufacturer and model.

A technician looks to wire an office for a medium-sized local area network (LAN). When considering the available standards and speeds, the technician decides to implement Gigabit Ethernet. What specific standard does the technician use?

1000BASE-T

Both CD and DVD drive speeds are based on multiples of the original CD-ROM drive speed. What is that speed?

150 KBps

What is the minimum capacity of a DVD?

4.37 GB

Rhonda's Café wants to install a wireless network for customers to use. Which standard would enable the customers to enjoy the most bandwidth?

802.11n is the fastest of the fast, with speeds theoretically in the 600 Mbps range. 802.11a runs at 54 Mbps. 802.11b runs at 11 Mbps. 802.11g runs at 54 Mbps.

A user is having a difficult time printing certain types of documents to her laser printer. When she sends complex, mult-page, multi-color PDF files to the printer, it refuses to print. What is most likely the solution?

Add more RAM to the printer

Which of the following types of networking hardware is used to deliver broadband internet access using a hybrid fiber-coaxial (HFC) infrastructure?

Cable modem

A user reports a problem with a laptop to a company help desk. The user reports that the mouse cursor seems to move on its own. What does the help desk technician suspect is the problem?

Calibration

You run the IPCONFIG command and your computer says you have the IP address 191.168.1.100. What class is your IP address in?

Class B

Which type of DDR ram have non-ECC and ECC types?

DDR5

What is a class of management software designed to apply security policies to the use of mobile devices and apps in the enterprise?

Enterprise Mobility Management (EMM)

Which program is the best choice to use to clear the SSL cache?

Internet Explorer (web browser)

What type of connector provides power to an internal hard drive from the computer's power supply using a 4-pin connector?

Molex

Which of the following devices needs to be installed to allow users in VLAN 102 to access the resources in VLAN 101?

Router

Jason wants to order a new gaming laptop for his son for his birthday. The laptop display must support a high refresh rate of 120 Hz or 144 Hz. Which of the following types of laptop displays should Jason purchase to meet this requirement?

TN

Question A critical system is set to use secure boot. What properties are characteristic of the secure boot process? (Select all that apply.)

The firmware is configured with cryptographic keys. The operating system boot loader is digitally signed.

Question If there is not enough system Random Access Memory (RAM), the memory space can be extended by using disk storage as a page file or swap space. What is this combination of addressable memory called?

VRAM

A technician needs to repair a laptop. Symptoms are that some keyboard characters are not typing properly and the fingerprint reader is not recognized. What type of component is the technician inspecting?

When replacing components such as a keyboard or touchpad, a connection is made to the motherboard via a data cable, typically with a flat ribbon cable type

What channel system requires support from the CPU, memory controller, and motherboard but not from the RAM devices?

dual channel

Which of the following statements about an eSATA connection is correct?

eSATA is used to add additional external storage devices

A technician has tested a computer with extended read/write times and found it to have IOPS reduced from vendor baselines. What should the technician do next?

Make data backups

Which cellular technology is compromised of HSPA+ and EV-DO to provide higher data speeds than previous cellular data protocols?

3G

What types of components provide input and output functions for a personal computer?

Peripheral device, system case

A network administrator adds several network printers to a business network. Users can install the printers easily by browsing resources that are available for use. Which protocol enables this capability within a Windows server-based network?

The Lightweight Directory Access Protocol (LDAP) is a TCP/IP protocol used to query and update resources in an X.500 directory. It is widely supported in current directory products such as Windows Active Directory.

The accelerometer in a mobile device makes which of the following possible?

The accelerometer enables software (like games) to use the orientation of the device as input, like a steering wheel or game controller. It is also what tells the device that the user has rotated the orientation from portrait to landscape, causing the device to rotate the screen correctly.

Which of the laser printer component is most likely to cause a ghost image to appear on a printout?

This often occurs due to an issue with the drum unit. If the drum unit is not being properly charged by the corona wire, ghost prints can become a problem with the unit.

What type of cloud model would allow the sharing of resources by multiple organizations to create a service that benefits all of its members?

Community cloud

A computer technician is building a server that will run multiple virtual machines simultaneously. Which CPU technology should be selected so that the processor can utilize two logical cores?

HyperThreading (HT) is an Intel CPU architecture implemented to expose two or more logical processors to the OS to deliver performance benefits.

Which of the following mail protocols should you configure to allow the employees to receive their mail and maintain the read/unread status across all of their devices?

IMAP

A technician researches flat-screen displays to find the perfect model for a conference room. The screen should feature a high viewing angle as the conference room is wide. Which technology does the technician look for when purchasing a flat-screen display?

IPS

Which of the following BEST describes how a DHCP reservation works?

Match MAC address to IP address within DHCP scope

A college would like to implement a secured print solution so that print jobs do not arrive at a printer until the printer is physically interacted with. This will help prevent students from potentially picking up faculty print jobs. Which two physical security solutions does the IT department consider to accomplish this? (Select all that apply.)

PIN code Badging

A user has a known problem with a system that is solvable by deleting the local user profile. However, what is the next step before moving forward with that solution?

Perform a backup.

What does registration do for color laser printers?

Registration realigns the individual colors to create a sharper focus of the printed image.

A customer calls you and states that her laptop screen is very dim. In order to avoid going to the client's site, which of the following is the first action you should recommend to the customer to perform?

Using the function keys enables you to change the brightness on your LCD screen.As this suggestion is easily the quickest and most simple fix among the bunch, you should try it first.

Which of the following DC voltages are not found within a printer when the laser printer converts AC power into DC power for use?

-24 VDC

A user's computer powers on, but it does not pass the power on self-test (POST) and there is no display on the monitor. The IT specialist starts with the POST issue. Which of the following troubleshooting tests are appropriate in this situation? (Select all that apply.)

-Check for faulty devices by removing one device at a time to see if this fixes the problem. -Check for faulty devices by removing all non-essential devices, then adding them back one at a time. -Check for a faulty CPU.

Which of the following ports is used by SNMP by default?

161

A technician builds a spare computer with an older motherboard and purchases a new modular power supply. What type of motherboard connector will the power supply most likely provide?

20+4-pin

An engineer plans a new wireless infrastructure rollout. The requirement is for access points that use 48V of power and 13 watts. Which specific standard does the engineer implement?

802.3af

A company places restrictions on the specific components and ports of mobile devices. This includes USB ports and cameras. Which specific enterprise management solution does the company deploy for this purpose?

A mobile device management (MDM) system sets device policies for authentication, feature use (camera and microphone), and connectivity. MDM can also allow device resets and remote wipes.

In which of the following situations is a registration procedure often required on a color printer?

After moving a printer, it is common for it to lose registration, requiring a registration procedure to keep the image sharp.

A small call center office asks their IT service provider to implement a voice-over-IP (VoIP) system for them. After discussing the office's needs, the technician learns that their ability to make and receive phone calls is critical. Considering this information, which of the following should the technician recommend?

Configure QoS on the router.

A technician decides to update a server's redundant array of independent disks (RAID) array with solid-state hard drives. The plan is to clone the current array and restore it to the newly built array. Which step does the technician use in a migration approach?

Disk imaging

An engineer troubleshooting a network connection identifies a port flapping problem. What should the engineer investigate as a possible cause? (Select all that apply.)

Ethernet cable NIC port Switch port

What format used as a system of mirrors that reflects the eliminated image of the object onto a lens that uses a prism to split the image into its component RGB colors?

Flatbed scanner

A user complains about the quality of the display on a laptop. The user mentions that the laptop has been in use since the company started many years ago. IT determines that the display uses a very early thin film transistor (TFT) technology and will replace the laptop. Which TFT technology does the display use?

In an early TFT implementation, twisted nematic (TN) crystals twist or untwist in response to the voltage level. This is the earliest type of TFT technology that can be in budget displays.

Question A system suffers from occasional overheating while positioned safely away from other objects. Which solutions can be implemented to help promote airflow to cool down the internal components? (Select all that apply.)

Install a new system fan. Use blanking plates.

What issue does constant indicator LED activity imply?

Not enough system ram

Which of the following is used when a CDMA smartphone attempts to connect to the cellular network while traveling? (Select ANY that apply)

PRI, PRL

A data scientist needs to run complex algorithms and machine learning programs that require a significant amount of computing power. The scientist tells the company's IT pro that their current computer is too slow and their data is backed up daily. What RAID configuration would be best for the data scientist where they don't need redundancy?

RAID 0

Robert wants to have an Internet connection that will give him the lowest latency when viewing streaming videos. Which of these options should he choose LAST?

Satellite connections have to travel almost 45,000 miles roundtrip, which can cause major latency issues when doing bandwidth-intensive applications.

Which of the following Internet services would you LEAST likely use with VoIP?

Satellite has more latency than just about any other internet connection out there. You should never use it when attempting to use VoIP.

A technician replaced a failed drive in a RAID array and noticed a severely degraded performance. What is the problem?

Takes resources to rebuild the array.

Which of the following ports needs to be opened on the firewall to ensure the phones can communicate with the TFTP server and download their boot-up configurations?

69

How many pins does a DDR2 DIMM have?

A DDR2 DIMM has 240 pins. DDR2 SO-DIMMs have 200 pins, DDR DIMMs have 184 pins, and SDR DIMMS use 168 pins.

A large technical firm deploys a cloud service. The service offers cloud storage along with web development capabilities. What deployment model does the firm utilize when a multi-tiered subscription option is available to the general consumers?

A public (or multitenant) model is a service offered over the internet by cloud service providers (CSPs) to cloud consumers, often referred to as tenants. With this model, a cloud service provider can offer subscriptions or pay-as-you-go.

Which of the following cloud services should an organization choose in order to deliver virtual desktops to end-users over the Internet on a per-user license basis?

DaaS

Which of the following provides a cryptographic authentication mechanism to positively identify an organization as the authorized sender of email for a particular domain name?

DomainKeys Identified Mail (DKIM) provides a cryptographic authentication mechanism. This can replace or supplement SPF. To configure DKIM, the organization uploads a public key as a TXT record in the DNS server.

Several users of a shared printer complain that the printer is printing on both sides of a sheet of paper when it should only print on one side. What setting does a technician change?

Duplex

After identifying the problem with a user's computer and collecting detailed information from the user about the problem, a technician believes they know the cause. However, when testing this theory, the technician discovers they were wrong and may not be capable of resolving the issue. What are the next troubleshooting steps for the technician? (Select all that apply.)

Escalate. Develop a new theory.

A support technician helps a user identify a problem with a newly installed application. The user states the application was working the day before. What does the technician do next?

Establish a theory of probable cause.

What does the Microsoft Windows "Programs and Features" applet allow the user to manage?

Legacy software/OS

Garol has been asked to work with one of her company's developers to set up an in-house test server that, as closely as possible, mirrors the environment the app is deployed in. When she asks the developer what kind of database the app uses and what sort of server hosts it, he says it doesn't quite work like that. He describes how the app's host automatically manages the database for them, leaving the developers free to focus on the app itself. What kind of cloud service model is the developer most likely describing?

Platform as a service (PaaS) providers help small numbers of developers focus on building cloud applications by greatly simplifying the work it takes to set up and maintain key components like the server and database.

A manufacturing firm uses an older Windows NT computer to operate a unique piece of machinery. To support such a legacy system on the network, what common port settings are enabled for communications?

Ports 137-139 (UDP/TCP) are used for NETBIOS over TCP/IP communications. NETBIOS is used on a modern network to support networking features for legacy versions of Windows.

What is the correct boot sequence for a PC?

Power good, CPU, POST, boot loader, operating system

A company is moving towards a cloud deployment model and wants the ability to use pay-as-you-go financing. Which deployment model best supports the prescribed need for the company?

Public, also known as multitenant, is a service offered over the internet by cloud service providers (CSPs). CSPs can offer subscriptions or pay-as-you-go financing or even provide lower-tier services free of charge.

Which RAID solution will provide the BEST speed and redundancy for a backup and disaster recovery server?

RAID 10

You have just assembled your first PC. You hit the power button and the computer turns on. As the computer runs through POST, it starts beeping multiple times and you don't see anything displayed on the LCD. You notice there are no activity lights flashing for the HDD. However, when you check the inside of the computer, you can hear the drive spinning up. What is the NEXT thing you are going to check in order to get the PC functioning?

Reseat your RAM. Amongst all the information you were able to gather from this scenario, knowing that it was making multiple beeps is an indication that the RAM is not seated correctly or worse yet... is bad!

An organization experiences an internet outage. As fiber is being used, an engineer checks to see if the optical signal is being properly converted to an electrical signal. The router is connected using an RJ45 copper wire patch cord. What does the engineer check?

The optical network terminal (ONT) installed at the customer's premises converts the optical signal to an electrical one. The ONT is connected to the customer's router using an RJ45 copper wire patch cord.

What do you plug into a three-row, 15-pin port?

VGA Monitor

A network engineer is designing an enterprise network for their firm's new office. This focus on security will require the engineer to consider what fundamental concept when combining wired and wireless devices in an enterprise local area network?

segmentation

What does the "chassis intrusion detection" BIOS option do?

t logs that the chassis (case) has been opened.

A PC tech plugs a x8 PCIe adapter card into a x16 socket. What speed would the card be capable of running? (Select all that apply.)

x1 and x8

Which of the following is the test we use to verify a NIC is sending and receiving packets correctly?

A loopback test utilizes a loopback plug which is inserted into the NIC's RJ-45 port. You then run a PING 127.0.0.1 or PING localhost to instruct the card to ping itself.

A technician plans an upgrade for several company laptops with new internal storage devices. The requirement is that the new devices interface with a PCI Express bus. What type of device does the technician use?

An M.2 SSD usually interfaces with the PCI Express bus, allowing much higher bus speeds than SATA. M.2 adapters can be of different lengths (42 mm, 60 mm, 80 mm, or 110 mm).

A company implements a new wireless Infrastructure. During the installation, an engineer adjusts the signal of all antennae for optimal performance. Which setting does the engineer use to measure dBi?

Antenna gain

What is the name of the printer concept that is used a page description language that produces higher quality outputs at the expense of speed?

Both the printer control language (PCL) and PostScript (PS) are page description languages, but PS produces higher quality outputs.

The TIA/EIA-568-C Commercial Building Telecommunications Cabling Standards have specific recommendations for healthcare facilities with power over ethernet 802.3bt installations, and for running distribution system cable to wireless access points. Which cat does this refer to?

Cat 6a

A user is trying to mirror a computer to a large display monitor for a presentation. The computer is on, and the display reads "no input" on the screen. An HDMI cable connects the two devices. What would be the next thing to check?

Change the display source.

After replacing a motherboard on a customer's laptop for a no-sound issue, a technician realizes that there is intermittent wireless connectivity on the laptop. Which of the following should the technician perform first?

Check to make sure that the Wi-Fi antenna is properly connected to the wireless card. A loose connection might be the cause of an intermittent connectivity problem.

Which type of memory module has 200 pins?

DDR and DDR2 SO-DIMMs have 200 pins. SIMMs have 30 or 72 pins DIMMs have 168, 184, or 240 pins. RIMMs have 184 pins.

Which type of internet connection is terminated at a local switching center and requires a different media type between the switching center and the end customer?

DSL

You want to boot from a removable USB device to troubleshoot your Windows 10 laptop. During your rebooting of the machine, which key should you press to enter the boot order menu?

F12

What causes a mobile device battery to swell?

Faulty charging circuit

A technician installs memory into a computer that supports a multi-channel configuration. A 4GB module is placed in bank A1 and a 16GB module is placed in bank B1. A diagnostic tool reports that 12GB is useable, but not as multi-channel. What mode does the system use in making all of the memory available?

Flex

Taylor wants to sync her new Android phone with her desktop PC. Which will give her the quickest and most reliable results?

If Taylor wants to be able to connect her sweet new phone to her computer and get the fastest and most reliable connection, she'll need USB 2.0.

A user reports that her desktop PC shuts down 10 minutes after turning it on in the morning. When the technician moves the PC, it sounds like there are loose parts sliding around in the case. Which of the following is the most likely explanation for the PC shutting down?

If the heat sink has come loose, the CPU will gradually build up heat until the it overheats and shuts off. You'd also hear the heatsink clunking around inside the case, letting you know that something's loose in there!

A new Internet service provider wants to deliver wireless connectivity to a large rural area. They also want to have very minimal interference with the service provided to their customers. What would be the suggested type of connection to deliver?

Licensed long-range fixed wireless

Which of the following cloud characteristics gives cloud customers the incentive to release resources they aren't actively using?

Metered utilization, which bills users based on how much of a resource they consume, gives them an incentive to release resources when they aren't needed.

Which of the following is a proper name for a stick of RAM?

Modern computers use DIMMs for RAM.

You are repairing a PC that won't boot after you just replaced its PSU. What should you check next? (Choose two.)

Motherboard Graphics card

A startup company does not have the capital to invest in infrastructure to host their website, nor do they have the capital to hire engineers to manage their cloud environment. At this point, strict access control is not a concern for the startup, but they do not want to share resources with other organizations. Which cloud implementation will best suit the startup's needs?

Public cloud

A technician did not install the full complement of modules, which would allow the system to revert to as many channels as are populated. What types of channels would allow this to happen? (Select all that apply.)

Quad-channel, Triple-channel

A computer has three disk drives. Which of the following RAID configurations will commonly be utilized with such a setup? (Select all that apply.)

RAID 0, RAID 5

Which of the following is a security concern with using a cloud service provider and could result in a data breach caused by data remnants?

Rapid elasticity can be a security threat to your organization's data due to data remanances.

While any form of electronic communication suffers from some amount of latency, which of the following technologies is particularly notorious for this problem?

Satellite. Geo-stationary satellites orbit at 22000 miles above the earth. The physical distance makes latency an inherent issue for satellite communication.

Which application would NOT allow you to sync your data between your Windows, macOS, Android, and iOS devices?

Shadow Copy will not sync your data between Windows, macOS, Android, and iOS devices because it only works on Windows devices.

In a coffee shop, you overhear someone at the table behind you talking about a big project they're working on to migrate all of the workloads currently handled by their company's data centers to the cloud. What kind of service model are they most likely to use?

Since they need to effectively transfer everything being handled by their in-house data centers, it's almost certain that they will need the flexibility and control provided by an infrastructure as a service (IaaS) provider.

Since Jason needs the Internet for an in-class demonstration, he connects his laptop to his iPhone using a USB cable. He essentially connects to the Internet using the smartphone as a modem. Which of the following terms best describes this configuration?

Tethering

You are troubleshooting a workstation for a customer. The workstation will not boot. When it is powered on, an error message of "OS not found" is displayed on the screen. What is the MOST likely solution to fix this error?

The "OS not found" error at boot time is an indication that the MBR (Master Boot Record) or GPT (Globally Unique ID Partition Table) is corrupted or faulty. If this occurs, you should reboot into the Windows recovery mode and use the 'bootrec /fixboot' command to fix the GPT.

Which type of wireless network utilizes the 5 GHz frequency band and reaches speeds of up to 9.6 Gbps?

The 802.11ax (Wireless AX or Wi-Fi 6) standard utilizes 2.4 GHz and 5.0 GHz frequencies to provide wireless networking at theoretical speeds up to 9.6 Gbps

While investigating a 4-year-old PC that is taking an unusually long time to boot, a technician discovers that the BIOS is rediscovering the hardware system at every boot. What should the technician do to resolve the problem?

The CMOS battery is most likely dead or dying, so replacing it should fix the problem. The technician will also have to make any non-default CMOS settings that the user had previously set up.

A laptop technician needs to upgrade the RAM in multiple standardized laptops. Which of the following is the biggest key consideration when upgrading the RAM on the laptops?

The DDR version of a laptop is critical in the upgrade process. For example, a laptop designed to run DDR4 cannot run DDR3 RAM.

Hey Support, technician replaces a Wi-Fi card and a laptop. The following day, laptop user states that the company's Wi-Fi net work as weaker than it was before. What does the technician fine to be the likely problem?

The antenna is not connected

Which of the following metrics should you consider to compare the performance of an SSD or HDD?

The input/output operations per second (IOPS) is a measurement of performance used to compare a hard disk drive (HDD) and solid-state device (SSD).

A user recently installed a BD-ROM in their PC. After installation, they call you because now their existing DVD-RW and the new drive aren't working. What should you tell them they need to replace?

Time to upgrade that power supply unit! Looks like the addition of a new drive just tilted the scale and now your PSU can't power all your devices. Get a 1000-watt PSU... you'll never worry about power again.

Which of the following is least likely to be a reason a company would choose to use a hybrid cloud setup?

To be prepared to move their services to a different well-known cloud provider if they don't like a pricing or policy change.

Which of the following components of a color laser printer is used to combine the 4 colors before printing them to the paper in one pass?

Transfer belt

Which of the following types of USB connections can support up to 4.5 watts of power per connected device?

USB 3.0 can support providing up to 4.5 watts of power per connected device.

A technician plugs a USB device into a computer and notices that the speeds are slightly less than expected. The USB port and device are USB 3.x devices, and the achieved speed is roughly 9 Gbps. What USB standard is in use?

USB 3.2 Gen 2x1

Which current USB standard supports 2 x 10 Gbps speeds and uses a USB-C connector type?

USB 3.2 Gen 2x2

What is the modern Android-based smartphone and tablet connector for wired peripherals and charging?

USB-C

Which of the following is the virtualization technology supported by most modern Intel processors?

VT

When using a Type 1 hypervisor virtualized environment, which of the following hardware types is necessary to connect the VMs to the corporate network?

Virtual NIC

A security team at a company discovers that malware is rapidly moving from one virtual machine to another in a live environment. What security issue is occurring?

Virtual machine escaping (VM escaping) refers to malware running on a guest OS jumping to another guest or to the host system itself.

Company is looking for computers with accelerated graphic capabilities in large, high resolution monitors. Which of the following would meet the companies needs?

Workstation

Which of the following is an open-source wireless communication protocol operating in the 2.4 GHz frequency band and is primarily used for home automation?

Zigbee

Right now a system administrator implemented a physical device that expedite cryptographic operations in manages cryptographic keys. What is this device and system administrator implemented?

a hardware security module (HSM) is a secure USB key or thumb used to store cryptographic material

A user tries to connect a second monitor to a computer. The computer has an available digital visual interface (DVI) connector that outputs a digital signal and the monitor has a video graphics array (VGA) connector. A technician recommends a VGA to which type of cable?

DVI-I

A user traveling on business reports that a company owned device suffered damage to the screen during a trip. A technician notices cracks on the screen and determines that touch input is no longer recognized. Visual elements on the screen look fine. What components need replacing? (Select all that apply.)

Digitizer Protective glass

You are troubleshooting a computer that reboots at strange times. Even when you try and access the CMOS setup, the computer will reboot. What should you check FIRST?

Do a google search for "blown capacitor" and you will see exactly what I'm talking about. That is a rough situation there. When this happens, it will short circuit the conductors that are carrying power, causing random reboots, among many other types of errors.

While troubleshooting a user's computer that has no power, the technician eliminated these possible causes: power supply, cabling, wall socket, and connection issue. Therefore, which of the following could be the problem?

Faulty motherboard

A user complains about a faulty network connection on a laptop. A tech traces the Ethernet cable in the office to a direct connection in a 16-port smart switch. While investigating the switch's activity, it becomes apparent that port flapping is occurring. What does the tech troubleshoot as a possible cause? (Select all that apply.)

Faulty port Interference Bad cabling

A department within an organization would like to share a specific set of files with external users from a Windows 10 system. The users will also need to save files as well. Which solution does the systems administrator configure without needing to directly require Windows permissions?

File Transfer Protocol-Secure (FTPS) allows a client to upload and download files from a network server. An FTPS server can be easily configured without the need for local user accounts.

A user states that a smartphone does not hold a charge for as long as it did in the past and seems to charge slowly. The change was noticed over the last few months. What could be the cause? (Select all that apply.)

Aging battery AC Adapter

An employee at an organization requests a laptop upgrade. The request is for a laptop that is extremely lightweight. There is also a requirement for the fastest speeds possible in order to demo the company's software to potential clients. With these requirements in mind, which drive type should the laptop have?

An M.2 SSD usually interfaces with the PCI Express bus, allowing much higher bus speeds than SATA. M.2 adapters can be different lengths.

A hard disk drive in a system experiences extended read and write times. What is likely the cause? (Select all that apply.)

Bad sectors Bad blocks

A universal asynchronous receiver transmitter (UART) port was traditionally a physical serial port in a legacy system. In a modern mobile device, how can a UART be utilized? (Select all that apply.)

Bluetooth USB

Question A technician needs to troubleshoot problems. When problem-solving, what are the three items that define a problem? (Select all that apply.)

Cause, Symptom, Consequence

The projector in the conference room is experiencing intermittent shutdowns. The technician begins troubleshooting by checking all the connector cables. What are the next troubleshooting steps for the technician? (Select all that apply.)

Check that the vents are free from dust. Check that the fan is working.

A user's monitor displays a distortedly large image. To fix the resolution problem, the IT specialist performs which software troubleshooting steps? (Select all that apply.)

Check the configuration of the video card. Update the video card driver.

Which type of virtualization refers to any solution designed to run on ordinary desktops or workstations?

Client-side virtualization

What service provides on-demand resources like server instances, file storage, databases, or applications over a network?

Cloud computing is a service that provides on-demand resources such as server instances, file storage, databases, or applications over a network, typically the internet.

An engineer investigates a new unified threat management appliance to replace an aging firewall. Which website browsing feature can the engineer expect the appliance to have?

Content filters are used to block outgoing access to unauthorized websites and services. Preset or custom rules can be used.

Question A remote facility cannot utilize a wired internet connection for a short period. When relying on a wireless solution, the company uses a technology that must be provisioned with a motor so it can periodically realign with the array. Which internet access technology is in use?

Low Earth orbital satellite internet access

A user contacts a printer technician to report that every print job sent to a laser printer has lines of toner in the same location on every page that is printed. What does the technician suggest may need cleaning or replacing?

Marks that appear in the same place (referred to as repetitive defects) are often due to dirty feed rollers or a damaged or dirty photosensitive drum.

A company realizes that it needs to implement a management solution for mobile phones. Which solution is specific to the restriction of apps installed from a device's app store?

Mobile application management (MAM) is part of an enterprise mobility management (EMM) suite that sets policies for apps that can process corporate data and prevents data transfer to personal apps. This type of solution configures an enterprise-managed container or workspace.

An engineer plans a fiber cable implementation between two campus buildings about 50 meters apart. Due to the distance between the locations, the engineer selects single-mode fiber. What specifications does the engineer need to consider with this decision?

Small core, long distances, long wavelength

Because she remembers you talking about your organization replacing its in-house support ticketing system with a monthly per-user subscription the company pays for, your friend Shirali messages to ask how it is working out. Which of the following best describes this subscription?

Software as a service (SaaS) is typically provided by another company in the form of a monthly or yearly subscription.

An organization looks to harden email services. The systems administrator uses every possible option to help prevent SPAM and other anomalies. During the final stages of configuration, the systems administrator creates a policy within the Domain Name System (DNS) to handle authentication failures. Which record is being configured?

The Domain-based Message Authentication, Reporting, and Conformance (DMARC) framework ensures that SPF and DKIM are being utilized effectively. DMARC specifies a policy mechanism for senders to specify how authentication failures should be treated.

The office laser printer starts printing pages that smudge easily. The IT specialist is proficient in the common printing defects of laser printers and knows what is causing the problem. What will the IT specialist do to fix the problem?

The IT specialist will replace the fuser because smudging print indicates that the toner is not fusing to the paper.

On a CPU, which of the following cache levels is the smallest?

The L1 cache is always the smallest and fastest of the CPU caches. The L2 and L3 caches are both larger and slower than the L1 cache. There is no such thing as an L4 cache in mainstream CPUs.

A user has just dropped off his laptop reporting that the screen is very dim and it's difficult to make out the icons on the desktop. When you plug in an external monitor to the system, it brings up the desktop perfectly. Which of the following needs to be replaced?

The LCD inverter is likely not supplying voltage to the backlights (CCFLs) and will need to be replaced.

A systems administrator is wanting to use a process in which the TCP/IP protocol is used to query and update an X.500 directory. What can be used to accomplish this task?

The Lightweight Directory Access Protocol (LDAP) is a TCP/IP protocol used to query and update an X.500 directory. LDAP uses TCP and UDP port 389 by default.

A user is complaining that nothing happens when he tries to print to a shared printer, even though the printer is powered on. What is most likely the cause of the problem?

The answer to about 90% (a rough, completely made-up estimate) of network printer problems is "the printer has no network connection." Do yourself a favor and check that first.

A printer technician troubleshoots a laser printer and determines that the exposing stage of the print job is the issue with print jobs printing incorrectly. What does the technician suspect is happening?

The imaging drum is not properly losing its charge.

You are troubleshooting a desktop computer. You have just removed every component, except for the bare essentials, but the computer still won't boot up. When you turn on the computer, all you receive from the system is a repetitive series of beeps. Which of the following is MOST likely the problem?

The ongoing series of beeps is the wonderful sound of bad RAM. Swap the RAM out and get some that is working and compatible with your system.

A shared printer handles a lot of print jobs for a medium-sized company. As of late, all users are complaining about the print jobs having a speckled output. What does a printer maintenance technician find to be the problem?

The speckling of toner on output is likely caused by loose toner that may be getting onto the paper. Cleaning the inside of the printer using an approved toner vacuum is helpful.

A hardware technician replaces the central processing unit (CPU) on an Advanced Micro Devices (AMD) motherboard. What must be applied when connecting the heat sink to the CPU?

Thermal grease

You just upgraded the RAM on your older PC at home. When you boot up the computer, it doesn't recognize the new memory even though it was on the Qualified Vendor's List (QVL) on the manufacturer's website. What are you going to need to do to solve this problem?

Time for a BIOS flash! The website said it is compatible, but if technology has changed, your BIOS version on your motherboard may be dated. The site will often also show the BIOS version required for the hardware.

A user complains that a computer is too slow when opening numerous applications. A technician suggests purchasing a new computer that features CMP capabilities to handle the user's workload. Which statement describes the technician's suggestion?

Two processors combined in the same package

A new computer experiences a malfunction with a touch input device. A support engineer disassembles the computer to diagnose the problem. While troubleshooting, which component would the technician find as a 9-pin header on the motherboard?

USB port

When troubleshooting internet connectivity issues on a wired network, the first step is to make sure the patch cables are working and physically connected to the network ports. If that is not the problem, what is the next troubleshooting step?

Use a loopback tool to test for bad ports.

A developer asks the IT department if virtualization would be possible to test software in a sandboxed environment. The developer's workstation runs Windows 10, the central processing unit (CPU) has virtualization technology enabled, and has plenty of resources for virtual machines. Which type 2 hypervisor does the IT staff install?

VMWare Workstation would be the best choice of the available options. VMWare workstation is a type 2 hypervisor that would easily install in the Windows 10 operating system and provide the features the developer requires.

A technician troubleshoots a motherboard issue. What the tech discovers is chip creep with a serial ATA (SATA) connector. What is the cause? (Select all that apply.)

Changing temperature Dust and dirt

An engineer configures a workstation for development testing by using virtualization. The engineer chooses to use a type 1 hypervisor. Which statements describe the environment? (Select all that apply.)

A bare metal virtual platform means that a type 1 hypervisor is installed directly onto the computer and manages access to the host hardware without going through a host OS. When a hypervisor is installed directly on the hardware of a host system, it is a type 1 hypervisor. This type has direct access to hardware on the host.

A support firm installs and configures network access control systems for organizations. This includes implementing the security mechanisms for local and remote computers to authenticate with an internal server system. A switch is put in place on the edge of the network to protect the server and protect against unauthorized traffic. What role does the switch play in the implementation?

A network access server (NAS) or network access point (NAP) is an access appliance, such as a switch, access point, a firewall, or a VPN gateway. It is the device that a system makes a connection to in order to access a network.

Which kind of cloud service model best enables a small team of developers with no server administrators to develop and maintain a Web application?

A platform as a service (PaaS) greatly simplifies the available choices and takes on much of the work of managing installed operating systems and other software.

A systems administrator looks to control HTTP requests from client computers based on the time of day. What type of service does the administrator deploy when configuring clients in a non-transparent manner?

A proxy can perform a security function by acting as a content filter to block access to sites deemed inappropriate. A non-transparent proxy requires client configuration for the proxy server.

An engineer configures 6 disks in a workstation to be part of a redundant array of independent disks (RAID) volume where one-sixth of the space on each disk will be used for parity. Which RAID type does the engineer implement?

RAID 5

Which cloud characteristic handles changes in demand requirements in real time?

Rapid elasticity refers to the system's ability to handle changes to demand in real time. This type of system would not experience loss of service or performance if demand doubles.

A company considers moving its infrastructure to the cloud. Management emphasizes the need to handle changes in resource usage in real-time. Which feature fulfills this need?

Rapid elasticity refers to the system's ability to handle changes to demand in real-time. A system will not experience loss of service or performance if demand suddenly doubles.

Systems administrators deploy a virtualization solution that separates host resources for each instance at the operating system level. Which solution is running?

With a container, resource separation occurs at the OS level. The OS defines isolated containers for each user instance to run in. Each container is allocated CPU and memory resources, but the processes run through the native OS kernel.