CompTIA A+ 1101 CertMaster Practice 2

What is the most important output voltage since it is the most heavily used?

12V

Which Institute of Electrical and Electronics Engineers (IEEE) wireless standards operate in the 2.4 GHz wireless frequency band?

802.11b/802.11n/802.11g

A network technician installs wireless access points (APs) in an office and would like to use the power over Ethernet (PoE) features available. The specific model of APs available requires a draw of 20W with a minimum current of 450 mA. Which Institute of Electrical and Electronics Engineers (IEEE) PoE standard best suits this requirement?

802.3at

A developer uses a design that implements a system-on-chip (SoC) that controls video, sound, networking, and storage as part of the CPU. What is the developer using?

ARM

A user has intermittent problems with a program, and the technician has determined two courses of action. The first solution would take several hours of work and may resolve the problem. The second solution is to reimage the computer. What is the best solution?

After backing up the data, reimage the computer.

A government organization uses an application that must be accessed via Citrix XenApp. What is the software delivery model being used in this scenario?

Application virtualization

What software delivery method enables programmers and application administrators to ensure that the application used by clients is always updated with the latest code?

Application virtualization

An employee uses a device that gives them authentication to release the print job. What is this device?

Badging

A user's phone charge only lasts two hours. The phone is new and has not suffered any damage. What should the user check next?

Battery utilization

An automobile allows for connecting a smartphone or tablet for entertainment and audio purposes. Pairing the two occurs with which technology?

Bluetooth

What is a physical indicator of overheating?

Burning smell.

How can a technician eliminate overheating as the cause of a sluggish computer?

By checking the temperature sensor

A support desk technician must make a custom-length Ethernet patch cable for a user's desk setup. What tool do they need to create this cable?

Cable stripper, crimper, snips

A user reports that their PC can not access the internet and internal network resources. The user also reports that the internet is intermittent throughout the day. A technician confirmed that the Ethernet cable is connected securely to the PC and the wall port. What tool should an engineer bring with them to investigate this further?

Cable tester

The TIA/EIA-568-C Commercial Building Telecommunications Cabling Standards have specific recommendations for health care facilities with Power over Ethernet (PoE) 802.3bt installations, and for running distribution system cable to wireless access points. Which Cat does this refer to?

Cat 6A

A tier one helpdesk technician receives a corporate cellphone with a broken screen. What is the first step?

Check if the phone is under warranty.

The technician can hear the computer's fan spinning, but no output displays on the laptop. What would be the first troubleshooting technique?

Connect an external monitor to check the screen.

A user complains that their monitor keeps flickering. What is the first thing to check?

Connectors

An important part of testing a new application is running it under several different OSs and resource constraints so the developer can be sure it will work for all customers regardless of their system. What term is used to identify the application testing described in this question?

Cross-platform virtualization

A network engineer gets a report that a growing number of wireless devices cannot obtain an IP address from the Wi-Fi network. They can see the network name (SSID) and authentication is successful, but devices say that they cannot obtain an address. What is most likely the problem?

DHCP has no more addresses available.

A remote support technician is speaking with a new rural business client who has issues with their internet connection. As the remote technician gathers information for a local technician to visit the site, the user mentions that the local tech referred to their connection as the "local loop" and the "last mile." What device would the remote technician conclude that they use to connect to the internet?

DSL modem.

A user complains their phone is frozen. They can hard reset it, but nothing works on the screen. What should the technician focus on?

Digitizer

A laptop user at a company asks the IT department for computer equipment. In addition to an external monitor, the user would like to take advantage of an expansion card. What does IT purchase for the user?

Docking station

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

Dual-channel

This protocol facilitates requests for an IP address and other network settings and uses ports 67 & 68.

Dynamic Host Configuration Protocol

A computer monitor's display is so dim it is almost invisible. What is the likely problem? ANSWER

Failed display backlight

A user complains their phone is not responding to touch. What is the likely culprit?

Faulty digitizer

A computer has intermittent problems and is making grinding and clicking noises. What is the likely problem?

Faulty disk

A computer monitor keeps flickering. The technician has checked the connectors and replaced the cords, yet the problem continues. The technician connects the display to another computer, and the flickering problem is gone. What is the likely problem?

Faulty video card

This protocol makes files available for download across a network and uses ports 20 and 21.

File Transfer Protocol

A company offers a bring your own device (BYOD) program at work. Several users approach the company in an effort to receive reimbursement for changing personal phones to the company's carrier. This will be done by swapping out a subscriber identity module (SIM) card in devices with which network type?

GSM

Users at an organization prefer that any mobile devices deployed for company use have location services disabled. IT administrators agree and configure which option?

Global Positioning System

Which mechanism has performance ratings of 5,400 rpm, 7,200 rpm, 10,000 rpm, and 15,000 rpm?

HDD

This protocol provisions secure websites and services and uses port 443.

HyperText Transfer Protocol Secure

What interface is the parallel advanced technology attachment (PATA)?

IDE

What does SMART measure as a performance indicator?

IOPS

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

A user replaces an older laptop that has a thin film transistor (TFT) display that uses crystals that rotate. Which TFT technology does the display use?

In-plane switching (IPS)

An IPv6 address is composed of which two main parts?

Interface ID & Network ID

A traveling salesperson receives an old hand-me-down laptop to use while a new one is on back-order. The salesperson complains that the laptop's visuals and brightness are horrible. An IT technician states that the fluorescent backlight is failing. What powers the backlight?

Inverter

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

Legacy software/OS

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

An iPhone user needs to charge their phone and notices that it only uses a certain type of connector. What type of connector does the iPhone use?

Lightning port

After running a Self-Monitoring, Analysis, and Reporting Technology (SMART) diagnosis on a computer, with extended read/write times, the input/output per second (IOPS) matches the vendor's baseline. What could be the problem?

Limited hard drive capacity

A technician reimaged an infected computer. What will the technician do to avoid this problem from happening again?

Make sure that antivirus is running and updating.

Each Ethernet network interface card (NIC) port has a unique hardware/physical identifier used for network routing and switching. What is this unique hardware or physical identifier?

Media access control address

What component can be used in a camera to hold digital image storage?

Memory card

A user, who is new to computers, inspects a laptop to become acquainted with all the physical features. The user finds a small hole in the top bezel of the display. What feature is this?

Microphone

IT systems administrators for a company have been busy configuring a fleet of new smartphones for users. Instructions that the administrators follow to configure the devices include using a host address and entering a domain as an optional parameter. Which corporate email service does the company use?

Microsoft Exchange

What issue does constant indicator LED activity imply?

Not enough system RAM

A technician installs a mechanism to a 5.25-inch drive bat and it connects to the motherboard by serial advanced technology attachment (SATA) data and power connectors. What is this mechanism?

Optical drive.

A user needs to change the direction of the viewing of a page. What tab would the user need to click on to change the page view from portrait to landscape?

Oreintation

A new IT support technician troubleshoots a user's report of intermittent network connectivity. After inspecting the workstation, they see a label above the station's RJ-45 port wall connection. This label is likely to identify what device?

Patch panel

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.

A technician suspects a mobile device to have liquid damage. What should the technician do first?

Power off the device.

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

Which redundant array of independent disks (RAID) applies a strategy that is the simplest way of protecting a single disk against failure by using a mirrored drive configuration with two disks?

RAID 1

An on-premises data center is moving to a cloud model to take advantage of the many benefits cloud computing offers. One of the most important benefits of this specific data center is handling changes to demand in real-time without degrading services. Which of the following is the most important benefit of migrating this data center to the cloud?

Rapid elasticity

A technician works on a faulty unit and needs to remove and replace a power supply unit (PSU) without opening the case and without the server losing power. What is this configuration?

Redundant power supply

A systems engineer is building a virtual machine to run a service with 8 dual-core CPUs and 500 GB of random access memory to function properly. Where would these two hardware requirements be listed?

Resource requirements

What tool can help diagnose extended read/write times?

SMART

A technician installs a type of computer memory into a laptop built using integrated circuits. What is this called?

SODIMM

A technician needs a cable for 10G Ethernet and higher within a data center network. What type of cable does the technician need?

STP

What can a cloud developer use to analyze viruses, worms, and Trojans without infecting their computer and network?

Sandbox

A company receives a new printer that needs assembly. What factors should the company consider when assembling it?

Set up location & correctly unboxing.

A startup legal office has specific software needs that are unique to the practice of law. The law firm partner would like to pay software developers to create a custom application but is concerned that the firm does not have the funds. The firm's IT manager has recommended that it use existing applications instead of paying for a new app to be developed. What service is the IT manager suggesting to the firm's partner?

Software as a service (SaaS)

A user has accidentally put too much paper in the feed. What possible issues might this cause?

Staple jams & hole punching issues.

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

System case & peripheral device.

A user calls to report that they cannot connect to the internet and various other internal resources from their laptop. After a technician asks them what IP address their Windows laptop has, they report it has an address of 169.254.0.115. What problem is the user's laptop having?

The laptop cannot get an address from the DHCP server.

After discovering an unlabeled wall port in an office, a technician would like to label it appropriately. Not knowing where the permanent link patches into specifically, they know which IT closet it would run to, as all the other permanent links in the same area run to the same closet. When connecting a laptop, there appears to be a successful connection. Which tool would be most helpful for the technician to use?

Toner probe

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?

Triple-channel & Quad-channel

A user complains that their monitor dims every day at 5:30pm. What could fix this problem?

Turn off the auto-dim feature.

A user had lost several mobile devices in the past. Each device had a basic password which put company data at risk. The user has a new phone and uses which method of increased security to log in?

Two-factor authentication

What universal serial bus (USB) does a technician use that allows a device to send and receive simultaneously?

USB 3.0

A gamer wants to connect a headset to a new gaming laptop. What connection options does the gamer have?

USB, 3.5mm jack, bluetooth.

A user complains that their laptop does not hold a charge for more than 30 minutes, even after charging all night. They also mention that there is an error message when they restart their computer that states something about power. What is likely the problem?

Underpowered adapter

A user has a TV connected as a presentation monitor but cannot play audio through the TV. The technician has verified that the cables are good and has chosen the correct output. What might fix the problem?

Unmute the TV.

A remote connection for users to access a company's private network requires access from an external IP. How might a laptop user test this connection if they are currently connected to the company's internal network?

Use a hotspot

A growing company is looking to move away from an outside vendor for payment processing and would like to do it in-house. As a part of securing the data on these computers, what foundational infrastructure solution should the company implement to keep this data separate from the rest of the company's internal network?

Virtual LAN

What measures the PSU to meet the combined power requirements of the PC's components?

Wattage rating

A consumer buys the cheapest laptop that they can possibly find. Which component did the consumer choose not to include in the laptop that would help drive down the cost?

Webcam

A network engineer must set up an office's new wireless access points (APs). After installing the access points, the engineer must ensure they set up the radio signals correctly and that all office areas receive the most efficient signal possible. What tool will the engineer utilize?

Wi-Fi analyzer

What are the manufacturers' specific recommendations for cleaning and maintaining laser printers?

Wipe with a soft cloth & use a toner-safe vacuum.

A printer allows connection to a computer through the infrastructure mode. What type of connection is this?

Wireless