Chapter 2. PC Technician Responsibilities

An offline device that switches over to provide power when an undervoltage occurs. If the switchover is not fast enough, the computer loses power.

Standby Power Supply (SPS)

conditions power so that overvoltages don't reach devices

Surge Suppressor

A user reports that he is unable to access data on an external hard drive. You investigate the problem and determine that the USB cable connection to the hard drive is damaged. You replace the cable. Which of the following actions should you take NEXT? Document the problem and solution. Create an action plan. Determine if escalation is necessary. Test the solution.

Test the solution.

A user reports that her monitor has stopped working. While troubleshooting the issue, you discover a bad video card in the system. You replace the card and connect the monitor cable to the card. Which of the following actions should you perform NEXT in your troubleshooting strategy? Test the solution. Document the solution. Explain what you did to fix the problem. Implement preventative measures.

Test the solution.

used to grasp and retrieve small parts that have fallen into areas that are difficult to reach

Three-Pronged Parts Retriever

Present a plan for returning affected systems to their original state if your proposed change to a hardware or software implementation fails.

backout plan

Complete power failure

blackout

Undervoltage that lasts seconds (lights dim)

brownout

predetermined group of people who have the power to accept or reject proposed project changes

change board

document used only to request permission to make changes to a project

change order form

signal that corrupts or destroys regular signals

interference

Change board may include what personnel?

managers, project managers, or even the CEO

device that tests various electrical properties

multimeter

draw air in, potentially bringing in airborne particles such as dust or smoke. Positive pressure systems are more energy effective

negative pressure systems

Provide a plan for implementing the change. This plan may include extending the project schedule, requesting additional resources, requesting additional funding, and any other impacts to the project.

plan

protect the air quality in the facility by causing air to be forced out through doors, windows, and other openings

positive pressure systems

Provide an explanation about why you wish to make this change to the project

purpose

Identify risks associated with the change

risk analysis

Undervoltage that lasts milliseconds

sag

Define exactly what you wish to change and, if helpful, what you don't wish to change.

scope

Overvoltage that lasts milliseconds

spike

Overvoltage that lasts seconds

surge

protects against overvoltages by switching a device off before an overvoltage can damage it

surge protector

Besides protecting a computer from under-voltages, a typical UPS also performs which other actions? (Select TWO.) A. Conditions the power signal B. Prevents ESD C. Protects network cabling from EMI D. Protects from over-voltages E. Prevents electric shock

A. Conditions the power signal D. Protects from over-voltages

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? A. Ignore the paper and tell no one of its contents. B. Tell your fellow PC technicians about what you saw and let them decide what to do with the information. C. Tell your friend about the report you saw and whose desk it was on. D. Give your friend a heads up about what you found, but don't tell them how you got the information.

A. Ignore the paper and tell no one of its contents.

Of the following choices, which action could be most physically harmful to you? A. Looking into the end of a fiber optic cable. B. Using a computer without a surge protector. C. Wearing a grounding strap while installing a modem. D. Force-ejecting a stuck DVD disc using a straightened paper clip

A. Looking into the end of a fiber optic cable.

Which of the following will help reduce the threat of static discharge when working on computer hardware? (Select TWO.) A. Remain in physical contact with the server chassis at all times. B. Reduce the humidity in the room to around 30%. C. Leave the system plugged into a grounded wall outlet. D. Place your hardware on an insulating layer of 1/4 inch Styrofoam. E. Store unused components in static shielding bags. F. Touch the leads on the PC components with your finger to dissipate any static charge.

A. Remain in physical contact with the server chassis at all times. E. Store unused components in static shielding bags.

Which documents are generally finished and approved before a project begins? (Select THREE.) A. Resource allocation documentation B. Project plan C. Budget D. Change order form

A. Resource allocation documentation B. Project plan C. Budget

As you troubleshoot a problem during a customer appointment, you discover the problem is directly related to the customer's actions. Which of the following is the BEST way to address the situation? A. Tactfully explain the problem without accusing or judging the customer. B. Explain the problem with abbreviations for well-known components to convey information quickly. C. Fix the problem without saying anything, realizing that you'll probably be back to fix the same problem again. D. Ask the customer, "What did you do to it?"

A. Tactfully explain the problem without accusing or judging the customer.

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? A. 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. B. Tell the employee that the best option is for her to purchase new RAM for the computer and bring it to work. C. Tell the employee that she should make do with what she has. D. Tell the employee that you will get new RAM for their computer as soon as possible.

A. 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.

A Help Desk technician receives a call from a user who is unable to download new messages from the company's email server. The technician tells the user to open a command prompt, ping the email server, and check the SMTP and POP3 server IP addresses. Which of the following mistakes did the technician make? A. The technician used jargon that the user probably didn't understand. B. The technician had a negative attitude and failed to take notes. C. The technician did not have the user check the workstation's IP address first. D. The technician did not walk to the user's desk and conduct the tests for the user.

A. The technician used jargon that the user probably didn't understand.

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? A. They must be recycled. B. They must be stored on-site until they expire. C. They can be thrown in the trash. D. They can be recharged.

A. They must be recycled.

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? (Select TWO.) A. Ground wire on the wall power outlet B. Anti-static mat C. Metal area on the computer case D. Ground wire on the power supply Screw on the wall power outlet

B. Anti-static mat C. Metal area on the computer case

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? A. Ignore the phone and let it continue ringing until the caller reaches your voicemail. B. Ask the customer if it is okay to take the call, and then step into the hallway to briefly talk on the phone. C. Immediately answer the phone and try to finish the call as fast as you can. D. Answer the phone and say, "I'm busy right now. I'll call you right back."

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

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? A. Document the problem. B. Create an action plan. C. Determine whether escalation is required. D. Fix the problem.

B. Create an action plan.

You are a PC technician for a company. An employee needs you to install some software on his computer over his lunch break. When you log on to the computer, you notice the employee's desktop has so many shortcuts and files that you can hardly see the desktop background. Which of the following actions should you take? A. Delete all the shortcuts and move all the files into a single folder on the desktop, and then inform the employee what you did. B. Create a folder named "Clutter" and move everything from the desktop into it. Then tell the employee they should organize what is in that folder. C. Install the software and leave the employee's computer exactly how you found it. D. Move the shortcuts into a single folder, and then look at each file and organize them into folders based on their contents.

C. Install the software and leave the employee's computer exactly how you found it.

A user reports that her system is running slow when saving files. You determine that you will need to upgrade her hard disk. You identify the components that are required and schedule the repair for later that afternoon. Which of the following steps have you forgotten in your troubleshooting process? A. Implement the solution. B. Verify system functionality. C. Perform a backup. D. Create an action plan

C. Perform a backup.

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? A. Inform the employee that there isn't anything wrong with the program and that he simply does not know how to use it correctly. B. Direct the employee to the email program's help utility. C. Set an appointment to train the employee on how to complete common email tasks. D. Tell the employee to ask their co-workers how to use the program if he come across further problems.

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

You are trying to help a co-worker order a UPS for each PC in her remote office location. What rating is used to specify the size of a UPS? A. Volts B. Watts C. VA (volt-amp) D. Volt/ohm

C. VA (volt-amp)

Which of the following is most helpful in keeping a computer cool? (Select TWO). A. Install a thermostat in the fan circuit. B. Remove a slot cover from the back of the computer. C. Verify that cooling fans are not circulating air in the wrong directions. D. Vacuum dust from the system regularly. E. Use a high-wattage power supply.

C. Verify that cooling fans are not circulating air in the wrong directions. D. Vacuum dust from the system regularly.

verifies that a network can carry a signal from one end to the other and that all wires within the connector are in the correct positions

Cable Tester

You have just installed a new USB card reader in your Windows computer. Every time you perform a certain action using the card reader, you get an error message that you've never seen before. Which of the following actions should you perform FIRST? Install the device on another computer. Uninstall the device and then reinstall it. Check the manufacturer's website for information about the error. Replace the card reader with a new device.

Check the manufacturer's website for information about the error.

ratcheting handle with interchangeable bits that provides multiple features in a single too

Combination Ratchet/Screwdriver

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 computer. You would like to know if it is working properly. Which of the following is the BEST action to take? A. Visually inspect the LCD screen for cracks before turning it on. B. Blow compressed air into the cooling ports before turning it on. C. Turn on the computer and run self-diagnostic tests. D. Let the computer warm up to room temperature before turning it on. E. Place the laptop next to a heater set on high and warm it up.

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

Which of the following features should you look for when selecting a vacuum cleaner for your cleaning kit? (Select TWO). A. Washable filters B. Static induction motor C. Coarse grade bag D. Non-static generating E. One that blows as well as vacuums

D. Non-static generating E. One that blows as well as vacuums

Which of the following components requires special disposal procedures to comply with environmental guidelines? A. Video card B. Hard disk drive C. Motherboard D. Notebook battery

D. Notebook battery

You have been called in to a customer's site to troubleshoot and fix one of their computers. From the description you received on the phone (prior to coming to their office), you have already given the customer an idea of which component may need to be replaced and how much it would cost to repair. You have been given permission to fix that component at the cost you quoted. When you open the computer and begin troubleshooting, you notice that what you suspected was broken was, instead, working perfectly. The real issue is soon discovered. After checking with your suppliers, you find that the replacement component is less than the component you had intended to fix. Which of the following is the BEST course of action? A. Fix the broken component and surprise the owner with a lower price than expected. B. Decline to fix the broken component. C. Fix the broken component for the agreed price and let the customer think you fixed the other component. D. Obtain authorization before repairing the broken component.

D. Obtain authorization before repairing the broken component.

The fan in a 450-Watt power supply is malfunctioning. What action should you take? A. Open the power supply and replace the defective fan unit. B. Do not service the computer until the CPU fan also fails. C. Open the power supply and oil the fan. D. Remove and replace the power supply.

D. Remove and replace the power supply.

A user calls her organization's help desk to request help connecting to a network server. The Help Desk technician visits her desk to resolve the issue. Once there, the technician uses the user's telephone to call his girlfriend. Even though the technician solves the problem, the call lasts the entire time the technician is at the user's desk. Which of the following mistakes did the technician make? A. The technician should have directed the user to the network software's documentation on the internet. B. The technician should have used a remote assist application instead of visiting her desk. C. The technician should have sent the user instructions in an email. D. The technician should not have used the user's telephone for a personal call.

D. The technician should not have used the user's telephone for a personal call.

You work for a large company that has over 1000 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 must 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? A. They must be stored onsite until they expire. B. They must be sent to hazardous waste collection. C. They can be recharged. D. They can be thrown in the trash.

D. They can be thrown in the trash.

What is the purpose of an MSDS? A. To prevent dust from accumulating on electrical equipment. B. To protect service technicians from large voltages. C. To monitor the potential for electrostatic discharge. D. To document how to safely handle and dispose of hazardous materials.

D. To document how to safely handle and dispose of hazardous materials.

You are a first line desktop support technician. A user reports that he cannot access several network files. After some investigation, you determine that the problem is with a network server. Which of the following actions should be performed NEXT? Document the problem. Fix the problem. Determine if escalation is needed. Create an action plan.

Determine if escalation is needed.

A user reports that he can't send print jobs to a specific printer. You are able to reproduce the problem on the user's computer. Which of the following actions should you perform NEXT? Establish the most probable cause. Establish a plan of action. Determine whether anything has changed. Determine if escalation is necessary.

Determine whether anything has changed.

A user reports that the projector in the conference room has display issues when it is connected to his laptop. After identifying the cause and completely resolving the issue, the projector displays the images perfectly both on his laptop and on the projector. Which of the following troubleshooting strategies should be performed NEXT? Identify the problem. Document the solution. Establish what has changed. Test the solution.

Document the solution.

What does occasional beeping from the UPS mean? A. The power reserve in the UPS battery is critically low. B. The UPS battery is no longer able to hold a charge. C. The computer is about to shut down. D. The UPS is not connected to the computer. E. The computer is running on the UPS battery power.

E. The computer is running on the UPS battery power.

A user sends a print job to a network printer, and it prints page after page of random characters. He calls the help desk, and a technician discovers that the wrong printer driver had been loaded on the user's workstation. The technician loads the correct driver, verifies that the system works correctly, and documents the resolution. Which of the following actions should the technician perform NEXT? Upgrade to a newer printer that uses embedded drivers. Formally close the incident in any job tracking tool. Educate the user as to how the problem was resolved and verify that they are satisfied with the results. Write an email to the user's supervisor and insist that he train his employees on how to use the network printer. Disable the network printer until users learn to use the correct drivers.

Educate the user as to how the problem was resolved and verify that they are satisfied with the results.

interference that affects wired networking signals

ElectromagneticInterference (EMI)

small magnet on a collapsible rod

Extension Magnet

As an IT technician for your company, you are in the process of setting up several servers in your network. During the process, one of the servers is misconfigured and is, therefore, having trouble synchronizing information with the other servers. Which of the following is the BEST next step? Gather information. Implement the fix. Identify what has changed. Create a hypothesis. Determine the appropriate fix.

Gather information.

Keep temperature between 70 and 74 degrees to prevent components from overheating. Keep humidity between 40 and 70 percent to prevent electrostatic discharge (ESD). Make sure server rooms have separate ducting or HVAC systems from the rest of the building for better temperature control.

Heating, Ventilation, and Air Conditioning(HVAC)

modifies the power signal to remove noise and create a smooth alternating current (AC) signal

Line Conditioner

used to test network communications by redirecting a signal from the transmit port on a device to the receive port on the same device

Loopback Plug

located close to a computer can cause undesired effects or even data loss

Magnetic Fields

expansion board that you insert into an expansion slot

POST Card

custom multimeter used to test output from a PC power supply

Power Supply Tester

You work for a company that provides payroll automation software to its clients. You are creating a program that will automate payroll tasks for small businesses with few employees. You are on track to meet your deadline for the project, and you anticipate having a lot of money leftover in the project budget. Mid-project, you receive a call from the human resources manager at MakeStuff, a company that will use the small-business payroll software. The manager informs you that MakeStuff has decided to offer its employees a 401k investment option and asks whether the small-business payroll program can automatically manage 401k investments. Currently, the project plan does not include that function, but you believe making the addition would be valuable to your business. You are worried about requesting permission to add this functionality for two reasons. First, the deadline for this project is very close, and it cannot be moved. Second, you have created software that automates flexible savings account management, but you haven't automated 401k investments before, and you know they are more complicated. You must fill out a change order form to request this change. Select the best option for each portion of the form.

*Purpose of Change* - To provide every client using the software the functionality to automate 401k management. *Scope of Change* - Add 401k management to the payroll software. *Plan for Change* - Request to hire contractors to implement 401k management. *Risk Analysis* - Using contractors could result in going over budget if there are problems with the project. *Backout Plan* - Back up the program and data before adding the new feature.

provides an insulated covering to prevent static electricity from moving between objects and damaging computer components

Antistatic Pad/Wrist Strap

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. To ensure your personal safety, which of the following should you do FIRST? A. Put on safety glasses. B. Disconnect power. C. Place the computer on an ESD mat. D. Remove jewelry

B. Disconnect power.

What is your top priority when responding to emergencies and hazardous situations? A. Reduce risk and exposure to litigation. B. Ensure the safety of people in the area. C. Protect your organization's data. D. Prevent the release of hazardous elements into the atmosphere.

B. Ensure the safety of people in the area.

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? A. Tell the user that they will need to find someone else to take care of their problem. B. 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. C. Try to perform the task by yourself. D. Tell the user it isn't in your job description and move on with your current task.

B. 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.

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? A. Cat 5e B. Fiber optic C. Cat 7 D. Coaxial

B. Fiber optic

You work at the IT help desk in your company. An employee calls to report a problem with her workstation, and a service ticket is assigned to you. You respond to the service ticket immediately and arrive at the employee's workstation within minutes. When you say hello, she responds in Spanish. You realize that she only speaks Spanish, and you only speak English. What should you do? A. Ignore the user and start working on the computer. B. Find an interpreter. C. Use hand gestures to communicate. D. Walk away and assign the problem to someone else.

B. Find an interpreter.

Which of the following are safe methods of lifting heavy objects? (Select TWO.) A. Use a lifting strap around the object and your neck. B. Lift with your legs. C. Bend at the waist. D. Pull up with your arms. E. Bend your knees with your back straight.

B. Lift with your legs. E. Bend your knees with your back straight.

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? (Select TWO). A. Argue with customers and/or be defensive B. Talking to coworkers while interacting with customers C. Actively listening D. Avoiding being judgmental

C. Actively listening D. Avoiding being judgmental

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 is the technician failing to follow? A. Avoid an argument with the customer. B. Avoid being judgmental. C. Avoid dismissing customer problems. D. Maintain a positive attitude.

C. Avoid dismissing customer problems.

You are filling out a change order form. Toward its end, you explain how you will return affected hardware and software to its original state if the change fails. What is this plan called? A. System image plan B. Rollback plan C. Backout plan D. Risk analysis

C. Backout plan

Who needs to approve a change before it is initiated? (Select TWO.) A. Personnel manager B. CEO C. Change board D. Project manager E. Client or end user

C. Change board E. Client or end user

Which of the following are common tools used to physically clean the inside of a computer? (Select TWO.) A. Industrial degreaser B. Wire brush C. Compressed air D. Natural bristle brush E. Damp rag

C. Compressed air D. Natural bristle brush

As an IT technician for your company, you have been notified that the Windows domain does not seem to be functioning properly. Being familiar with domains, you are fairly confident you know what the issue is. But just to be safe, you take the applicable time to gather additional information and to identify what, if anything, has changed. Which of the following is the BEST next step? A. Implement the fix. B. Gather information. C. Create a hypothesis. D. Determine the appropriate fix. E. Identify what has changed.

C. Create a hypothesis.

To improve the safety of your location and to 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? A. Get them from your local workers' safety insurance office. B. Ask your manager for them. C. Download them from the chemical manufacturer's websites. D. Write them yourself after researching the issues.

C. Download them from the chemical manufacturer's websites.

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? A. Get a new power cord with two prongs to match the wall outlet. B. Purchase an adapter that converts the three-prong cable to two prongs. C. Find a different outlet that uses three prongs. D. Use the existing cord, but remove the grounding prong, as it is not required.

C. Find a different outlet that uses three prongs.

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? A. "All I did was flip the power strip switch on. You probably bumped it by accident. And that accident just cost you about $80. But don't feel bad, accidents happen to everyone. Although, this one could have been easily avoided." B. "That was probably the easiest problem I've ever fixed. I am surprised you had to call in. Thanks for making my day! All I had to do was flip this little switch. You're good to go." C. "Next time you need to call, check this power strip switch. It was turned off. That's why nothing worked. If I were you, I would have checked this first and saved both of us time." D. "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?"

D. "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?"

A PC technician knows he will be late to an appointment with a customer. Which of the following actions should the technician take? (Select TWO). A. Tell a joke to ease the situation. B. Blame your tardiness on heavy traffic. C. Explain why you are late. D. Contact the customer and apologize. E. Give a realistic timeframe for your arrival.

D. Contact the customer and apologize. E. Give a realistic timeframe for your arrival.

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? A. ESD heel strap B. Self-ground C. ESD mat D. ESD wrist strap

D. ESD wrist strap

While you are answering help desk calls, a field customer calls and complains that he cannot print to a workgroup laser printer. Which of the following should be the first question you ask? A. Have you checked the cables? B. Have you rebooted the printer? C. Have you rebooted and chosen safe mode? D. Have you ever printed to that printer?

D. Have you ever printed to that printer?

used to add or remove integrated circuit chips that are used on motherboards and some computer components

IC Insertion and Extraction Tool

You are responsible for managing client workstations for your company. A frantic user calls you one morning exclaiming, "Nothing is working!" Which of the following actions should you perform FIRST? Find out what has changed. Identify the problem. Back up the system. Establish a theory. Establish a plan of action.

Identify the problem.

Which of the following is a benefit of good documentation? It saves time and money in troubleshooting problems. It eliminates the need to troubleshoot problems. It reduces hardware maintenance. It reduces hardware replacement requirements.

It saves time and money in troubleshooting problems.

set of components that you know are in proper functioning order

Known Good Spares

Arrange the standard change order form information on the left in its standard presentation order on the right.

Purpose of the change Scope of the change Plan for the change Risk analysis Backout plan

interference on the radio channel used by wireless networking devices

Radio Frequency Interference (RFI)

An online device that is constantly providing battery power to the computer and being recharged by the wall outlet.

Uninterruptible Power Supply (UPS)