Review 2022 A+

Which of the following device types should be plugged into a surge-protected-only outlet on a UPS unit and not a battery backup outlet?

Laser printer

A new laptop was delivered to your home and left on the porch while you were at work. It is very cold outside, and you don't know how long it has been there. You unpack the laptop. You would like to know if it is working properly. Which of the following is the BEST action to take?

Let the laptop warm up to room temperature before turning it on.

A printer is behaving erratically; you suspect a faulty parallel port. Which tool can you use to test the parallel port?

Loopback plug

Your workstation is unable to communicate with any other computer on the network. Which of the following tools should you use to test the network card's abilities to send and receive signals?

Loopback plug

You are a system administrator for a financial institution. Most of your employees work at home and have various work environments. One of your account managers is complaining that customer data is disappearing from her account management application. She insists that she saves data regularly and has not had a problem until recently. Her workstation has both a solid-state drive (SSD) and a traditional hard drive. She runs the application from the SSD drive, but stores the customer data on the hard drive. She has recently moved her desk to a room in her house that is used for entertainment. The room has a sound system with several installed speakers for surround sound. Which of the following types of interference might be causing the issue with disappearing customer data

Magnetic fields

A customer needs to use several applications. Currently, the computer cannot keep all the necessary applications open at the same time. Which of the following components should you consider upgrading?

Memory

To prevent ESD when replacing internal computer components, you attach an anti-static wrist strap to your wrist. Where should the other end be fastened?

Metal area on the computer case

You are the manager in charge of maintaining desktop computers. A user reports that she can't turn her computer on. After some investigation, you find that the power supply is malfunctioning. Which of the following actions should you perform next?

Create an action plan.

You have responded to a call from a customer who is having problems with his computer. After troubleshooting the problem, you discover the switch on the power strip was off. After switching it on, all of the components and their functionality return to normal. Which of the following is the BEST way to explain the solution to the customer?

"I found this power strip switch in the off position. Now that it's on, it looks like everything is working. It appears as though that was the problem. Can you confirm that the problem has been resolved?"

You have an older computer that has four DDR2 memory slots. Currently, there are two 512-MB memory modules installed. You check the motherboard documentation and find that the system has a 4-GB memory limitation. You want to add more memory to this system. What is the maximum total amount of usable RAM you can have in this system by adding new memory modules (and without replacing the existing memory modules)?

3 GB

Dual-channel memory systems only theoretically double memory bandwidth. What is the bandwidth increase in actual terms?

5-15%

Which of the following BEST describes the theoretical capacity of a DDR4 standard system memory module?

512 GB

You want to build a new system that supports 16 GB of memory. Which of the following is the MOST important consideration when building the computer?

64-bit processor

You are installing a new SATA hard drive in your Windows workstation. Which of the following connectors should you use to connect your hard drive to the motherboard?

7-pin connector

While on a service call at a customer site, you are discussing the problem with the customer when your cell phone rings. You check the caller ID, and you see that the call is related to parts you ordered for another customer. Which of the following is the MOST professional way to handle the situation?

Ask the customer if it is okay to take the call, and then step into the hallway to briefly talk on the phone.

As you arrive on-site to fix an issue, you are met by a frantic employee who immediately details how critical the issue is and how important it is to fix it as quickly as possible. Having seen this same issue many times, you say to the customer, "Stop worrying. I know what I'm doing." Which of the following professionalism principles are you failing to follow?

Avoid dismissing customer problems.

You are an IT technician for your company. A coworker calls your department and asks for help fixing his malfunctioning internal Blu-ray drive, which he installed himself. When you arrive, you unplug and then open the employee's computer. As you begin to examine his computer, the employee begins to describe the steps he has taken to install and troubleshoot the issue on his own. You examine all of the connectors and discover that the employee forgot to connect the Blu-ray drive's power cable. Your initial thought is, "How stupid can this guy be?" but you restrain from making any comments. At that moment, another coworker calls your cell phone. The ringing of the phone distracts your thoughts, and while the owner of the computer is still explaining the troubleshooting steps already completed, you quickly connect the power to the device and close the computer. A quick test determines that the device is now working. Which of the following professionalism principles is the technician failing to follow?

Avoiding being judgmental

Your company provides testing services that help customers identify and resolve performance issues with their software and e-commerce sites before they go live. To perform accurate testing, a large number of computers are required, sometimes numbering in the hundreds. Recently, you have noticed that the lights in the testing lab seem dimmer than normal and sometimes flicker. Which of the following electrical terms BEST describes the condition you are most likely experiencing?

Brownout

You work as the IT administrator for a small corporate network. Sam, an employee in the support department, wants to run a virtual machine on his computer for troubleshooting customer issues, and he needs a very stable computer from which to work. You need to decide whether to install buffered or non-buffered RAM in his computer. Which of the following BEST describes the reason to choose buffered instead of unbuffered memory for this new computer?

Buffered memory reduces the load on the memory controller and allows the system to be more stable.

With a memory module read request, there is a delay between the time of the data request and the time the data is available for output from the memory module. What is this delay called?

CAS latency

Which of the following devices can store large amounts of electricity, even when unplugged?

CRT monitor

You have an existing system that has a single DDR3 memory module installed. You would like to add more memory to the three remaining empty memory slots. Which of the following steps should you take to make sure that you get the right memory for the system?

Check the motherboard documentation to find which modules are supported.

Besides protecting a computer from under-voltages, a typical UPS also performs which other actions?

Conditions the power signal

As a PC technician you know you will be late to an appointment with a customer. Which of the following actions should you take?

Contact the customer and apologize.

You suspect that the power supply in your desktop PC is failing. You want to use a multimeter to test the power supply. Which multimeter setting should you use?

DC volts

Your motherboard has sockets for 184-pin DIMM RAM. Which type of RAM should you install?

DDR

Which of the following DDR memory types can be used by a triple-channel memory system?

DDR4

What are the advantages of DDR4 over DDR3, assuming the same operating frequency?

DDR4 uses less power than DDR3.

Which of the following memory ratings identifies the fastest memory?

DDR4-1600

As you arrive on-site at a customer's place of business, you go to the front desk and ask for the manager of the IT department. The manager greets you and tells you to use their first name, which is Robin. Robin then escorts you to the printer, which is jammed. After you fix the printer, the existing print job completes. As the paper comes out, you notice that one of them is marked confidential and has to do with an upcoming merger. You find Robin and say, "Robin, your printer is fixed and working perfectly." Robin then escorts you off the premises. When you get home that evening, you tell your spouse about the merger document you saw. The next day, you call Robin to verify that the printer is still functioning properly. Which of the following professionalism principles did you fail to to follow?

Deal with confidential materials appropriately.

Katy is a IT engineer who is responsible for maintaining the environment in her company data center in San Francisco. While swapping motherboards in a server in the data center, she notices that the original motherboard is showing signs of corrosion. Which of the following is the BEST solution to resolve the corrosion issue?

Decrease the humidity in the data center.

Timothy works in the graphic arts departments and has received approval to upgrade his video card. The card has arrived, and you are ready to begin the upgrade by replacing the old video card with the new one in his workstation. To ensure your personal safety, which of the following should you do FIRST?

Disconnect power.

To improve the safety of your location and comply with regulations regarding work environments with hazardous materials, you have been assigned to assemble Material Safety Data Sheets (MSDS) for all chemicals used in your shop. How should you obtain these documents?

Download them from the chemical manufacturer's websites.

You work for a store that sells and repairs computers. Due to the room's layout, while repairing computers, you must walk from one side of the carpeted room to the other frequently. Which of the following would BEST protect you from static electricity buildup?

ESD wrist strap

You are in a carpeted office lighted by fluorescent bulbs. You are preparing to add memory modules to a user's computer. The user has already unpacked the memory modules and stacked them on top of an old, unused CRT monitor. What is the greatest threat to these memory modules in this environment?

Electrostatic discharge (ESD).

You are removing screws within a computer, but several have fallen into places you can't reach. Which tool would help retrieve the small screws?

Extension magnet

You are in the process of setting up an Ethernet network for a new building at your company's headquarters. You need to connect the wires from the different Ethernet office wall plates to your network rack. Which of the following components on the network rack should you use to connect the wires from the office wall plates?

Ethernet patch panel

You are assembling components in a network rack and need a device that connects three network segments. Which of the following devices will meet your networking needs?

Ethernet router

A user asks you to perform a task that you do not know how to do and is not in the scope of your job duties. What is the BEST way to respond to this situation?

Explain to the user that this is not a task you can perform, but you will do your best to contact someone who can perform the task.

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

HDMI

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

Fiber optic

Your U.S.-based company has recently purchased an old office building where employees are being assigned to work. As you are setting up the employees' desktop computers, you come to one location where the nearest wall outlet has only two prongs. All of the metal-enclosed desktop computers have three-prong cords. Which of the following is the BEST way to proceed with that particular desktop computer?

Find a different outlet that uses three prongs.

Your server runs in quadruple-channel memory mode. How many memory controllers are being used?

Four

What method is used to ensure proper ventilation in a server room?

Hot and cold aisles

Which tool would be the best choice for removing and replacing the motherboard BIOS chip?

IC extractor

Which of the following is a myth regarding electrostatic discharge (ESD)?

If you can't feel ESD, the surge is not sufficient to harm computer components.

You are the PC technician for a company. An employee has gone to a meeting while you fix the computer in her office. She accidentally left a report open next to her computer. It states that a friend of yours in accounting will be submitted for review if their poor work performance continues. Which of the following is the BEST action to take?

Ignore the paper and tell no one of its contents.

Which of the following is the most common method for removing RAM from a motherboard?

Move the tabs holding the RAM out of the way; then pull straight up to remove the RAM.

Which of the following are common tools used to physically clean the inside of a computer?

Natural bristle brush

You decided to upgrade your PC with a faster processor. To do this, you ordered a new motherboard over the internet that supports the processor that you want to use. When the motherboard arrives, you discover that the motherboard uses the Micro-ATX form factor. Your current case is an ATX mid-tower with a standard ATX motherboard inside. Which steps must you take for the Micro-ATX motherboard to work in the ATX case?

No additional steps are necessary. You can install the Micro-ATX motherboard in the ATX case.

Which of the following features should you look for when selecting a vacuum cleaner for your cleaning kit?

Non-static generation

Which of the following components require special disposal procedures to comply with environmental guidelines?

Notebook battery

A technician is troubleshooting a computer that doesn't start up correctly. Which of the following tools could the technician use to troubleshoot the computer?

POST Card

While performing data entry on your Windows 11 laptop, your screen suddenly goes black. What can you do immediately to troubleshoot the issue without losing any data that you have entered?

Press the Windows key + P four times

Which of the following are considered computer hardware?

Printer

Which computer function takes data through a series of procedures as defined by a set of instructions?

Processing

Which of the following is true about RFI?

RFI is caused by nearby devices, such as cordless phones or microwave ovens.

When playing videos games or watching movies on your workstation, the screen sometimes freezes and displays strange colors. You suspect that your video card is causing the issues. What is the BEST solution to resolve your display issues?

Replace the video card.

What is the BEST way to dispose of printer cartridges?

Return them to the manufacturer for recycling.

You are the PC technician for a company. You received the following email from an employee: My email doesn't work. I keep getting email sent back to me, and I can't find any of my old emails. I don't think that the email program has ever worked well. When you arrive at the employee's desk, you observe how the employee accomplishes normal email tasks. You quickly determine that the problem is not with the email program, but that the employee needs to learn how to use the program. You have several high-priority tasks that need to be completed by the end of the day. What is the BEST way for you to respond?

Set an appointment to train the employee on how to complete common email tasks.

After arriving at work, you turn on your computer to begin your day. Instantly, you see smoke and smell a strange odor coming from the computer. Which of the following would be the MOST important action to take first?

Shut off the system immediately.

Which of the following statements is true regarding single- and double-sided memory?

Single-sided memory uses half the number of memory modules as double-sided memory of the same capacity.

You need to replace a broken monitor on a desktop system. You decide to replace it with a spare monitor that wasn't being used. Even though the monitor is made by a different manufacturer than the desktop computer, it still works with the computer. Which computer design concept makes this possible?

Standardization

You are in the process of installing a motherboard in a system case. Which of the following objects should you place between the motherboard and the system case?

Standoffs

Susan works in the research and development department. She recently purchased a large high-speed external drive and has attached the drive to her computer using a USB cable. Her drive requires a minimum data transfer speed of 5 Gbps and needs to have access to 600 mA/15 volts of USB power to function properly. Although the correct drivers are installed, when she plugs her drive into her workstation, the drive is not working. To troubleshoot the problem, she has connected her drive to her coworker's computer, where the drive functions properly. No additional cables are required for this drive. Which of the following is the MOST likely reason that Susan's external hard drive is not working?

Susan has connected her drive to a USB 2.0 port, which does not have the required data transfer speed.

An employee calls you to demand more RAM for her computer to complete her work tasks. However, you know that her department doesn't have a budget for new equipment. Your supervisor is the only one that has authority to allocate department funds. Which of the following is the BEST way to respond?

Tell the employee that her department doesn't currently have a budget for equipment upgrades, but that you will let your supervisor know about the request so it can be properly determined if new RAM can be acquired.

You have just finished replacing the motherboard in your friend Ethan's computer with the same type of motherboard that the computer had originally. You tested the motherboard by powering it on and by verifying that the operating system started and that the applications work. Now Ethan is complaining that his computer no longer recognizes his external hard drive, which he had connected to the previous motherboard. Which of the following is MOST likely causing the external hard drive not to function?

The USB front panel connector was not properly connected.

Which of the following BEST describes the purpose of the north bridge chipset?

The chip that controls the PCI bus.

Which problem can occur if your system case fan blows in the wrong direction?

The flow of air is negated and the system can overheat.

What should you use to clean an inkjet printer's print heads?

The printer's cleaning function

You work for a large company that has over 1,000 computers. Each of these computes uses a wireless mouse and keyboard. Therefore, your company goes through a lot of alkaline batteries. When these batteries can no longer power the intended device, you need to decide what to do with them. Unless otherwise dictated by your local authorities, which of the following would be the EASIEST way to deal with these batteries?

They can be thrown in the trash.

Which of the following is true about negative pressure systems?

They can bring in airborne particles, such as dust or smoke.

Your company has a plan in place to upgrade each employee's laptop computer to a newer model every three years. As a result, you often have old laptop batteries. Unless otherwise dictated by your local authorities, which of the following is the BEST way to deal with these types of batteries?

They must be recycled.

You need to trace the route that a Cat 6 UTP cable takes through the ceiling and walls of your building. Which tool should you use?

Tone generator

A maintenance worker accidently nicks a bundle of network cables routed to multiple wall jacks in a conference room. Only one of the cable's wires are severed. A technician is tasked with replacing the cable. Which of the following tools would the technician MOST likely use to identify which wall jack connects to the severed cable?

Tone generator and probe

Your company resides in an area with rapid growth in both the corporate and residential areas surrounding your office. As such, your company has been experiencing several brownouts due to power grid problems (too much demand and not enough electricity). Fearing that your computers (especially the servers) could be damaged by these brownouts, your manager has asked you to find a solution to this problem. Which of the following would be the BEST device to recommend to your manager for computer protection?

UPS

Your local area experiences brownouts or blackouts during frequent electrical storms. Which of the following components could you add to your network rack to help protect your servers from brownouts or blackouts?

UPS

A laptop that you previously purchased was shipped with SO-DIMM memory to accommodate the laptop's form factor. You would now like to upgrade the memory. Which of the following is an upgrade to the SO-DIMM standard?

UniDIMM

You work in the computer repair department of a large retail outlet. A customer comes in with a workstation that randomly shuts down. You suspect that the power supply is failing. What should you do first to troubleshoot the issue?

Use a known good spare to swap with the existing power supply.

You are an IT technician for your company. One of the employees has a computer that continually reboots when it's powered on. He has asked you to fix it. You suspect that the power supply may be failing. Which of the following is the BEST way to determine whether the power supply is causing the reboots?

Use a multimeter to test the power supply.

You work as the IT administrator for a small corporate network. One of the company employees needs to add an additional PCI card to the motherboard. When you open the computer, you see that the card that you purchased does not fit due to the card's height. Which of the following is the BEST method for using the newly purchased card?

Use a riser card to allow the new card to be installed parallel to the motherboard.

Jeannette's workstation is overheating. She decides to open the workstation and clean any accumulated dust to see if it helps with the overheating issue. Which of the following can Jeannette safely do to remove dust?

Use short bursts of compressed air to clean delicate components.

Which of the following are most helpful in keeping a computer cool?

Verify that cooling fans are not circulating air in the wrong direction.

In which of the following situations should you NOT use an ESD wrist strap?

When working with high-voltage components.

You have just upgraded the memory in one of your network servers by adding two 4-GB ECC memory cards. Before purchasing the new memory, you made sure that the modules fit in the memory slots (packaging) and the speed (memory frequency) was supported by the memory controller. What did you forget to check that would significantly impact the memory checking of your new ECC memory cards?

Whether or not the existing memory modules support ECC.

You are trying to push a memory module into a memory slot, but it is not seating properly. What is the MOST likely issue?

You are trying to install the memory module backwards in the memory slot.

Which of the following statements about cleaning LCD monitors and display devices is true?

You should power off your monitor and clean it with a lint-free dry cloth.