Testout Lab Quiz 0

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 what the problem was 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?" Explanation In this case, the following is the best way to explain the problem 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?" The response is clear and not judgmental or insulting. In addition, you are asking customer to make sure that the problem no longer existed. You should never insult, judge, or belittle a customer in any way, even if the problem is directly related to their actions.

Which tool is used to grab and lift small objects?

3-prong Holder

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

A vacuum cleaner that blows as well as vacuums. Non-static generating Explanation It is important to select a vacuum cleaner for use with computer equipment that will not generate harmful static. Electrostatic discharge should always be avoided around sensitive computer components. In some cases, it may be better to remove dust and other foreign matter by applying a blowing force rather than vacuuming. The bag used in this type of vacuum should be fine enough to collect toner particles. Otherwise, these particles may circulate within and outside the vacuum and spread toner.

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

Anti-static mat. Metal area on the computer case. Explanation When using an anti-static wrist strap, you should connect the wrist strap to yourself and the other end to a ground such as the clip on the anti-static mat, or to an area on the computer case so that you and the computer are at the same electrical potential. Never connect the wrist strap to a power outlet, power supply, or ground on a power source.

Which of the following protects a computer system from electrostatic discharge?

Anti-static wrist strap Explanation An anti-static wrist strap prevents an electrostatic discharge between the service technician and the computer components. Static shielding bags can be used to protect individual components from ESD, but are not typically used to protect the entire computer system. A POST card is a plug-in expansion card that displays progress and error codes generated during power-on self-test. A power supply tester is a custom multimeter that is used for testing output from a PC power supply.

Which of the following protects the computer from electrostatic discharge? A. Static Shielding Bag B. POST card C. Power Supply Tester D. Anti-static wrist wrap

Anti-static wrist wrap

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. What is the most professional way to handle the situation?

Ask the customer if they mind if you take the call, and then step into the hallway to briefly talk on the phone. Explanation Because the call is work related, the most professional way to handle the situation is to ask the customer if they mind if you take the call. Most customers will have no problem with this. Letting the phone continue to ring is very distracting. Quickly answering the phone without asking the customer is rarely appropriate, even if it is to say you'll call the person back.

J- Audio Jack

Audio jacks- Connects analogue audio devices (e.g., speakers, headphones, microphones).

You have a network port in the office that connects to the server room using wires that are strung through the ceiling. Which tool would you use to verify that the signal can be sent from one end to the other?

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. What should you do first?

Check the manufacturer's website for information about the error. Explanation For information about a specific error, check the manufacturer's website. Taking any other action might fix the problem, but would most likely just waste time. In most cases, device-specific problems can be corrected with a new driver or other software update.

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

Compressed air Natural bristle brush Explanation You can use a natural bristle brush and can of compressed air to blow dust off of a motherboard and other circuit cards. Never use anything harsh such as a wire brush. Rags are also discouraged because they easily snag on electrical leads and parts.

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

Conditions the power signal Protects from over-voltages Explanation A typical UPS protects a computer from overvoltages as well as undervoltages. Also, because the quality of the electrical signal provided by a UPS battery is not as good as the AC power from the wall outlet, UPS devices often have built-in line conditioners.

As a PC technician, what are the best actions to take if you are late to an appointment?

Contact the customer and apologize. Give a realistic timeframe for your arrival. Explanation If you are going to be late to an appointment, contact the customer, apologize for the inconvenience, and give a realistic timeframe for your arrival. Use professional and courteous language at all times. Avoid making jokes or commenting on issues unrelated to the purpose of your visit. Explaining why you are late may be courteous, but is typically trivial and not the best action to take. Blaming your tardiness on external factors does not help the situation.

A user reports that she cant turn her computer. After some investigation, you find that the power supply is malfunctioning. What should you do next?

Create an action plan. Explanation At this point, you should create an action plan and account for side effects of the proposed plan. Identifying the effects ahead of time helps you put measures into place to eliminate or reduce any potential negative consequences. Escalation is not necessary because you are already in charge of managing and maintaining the desktop computers. Fix the problem only after creating the action plan and identifying possible effects Document the problem and the solution after the problem has been fixed and the solution has been verified.

You are providing telephone support for a user who is trying to connect a computer to a projector. You know that the projector only has a VGA port. How would you describe the connector that the user should look for?

D-shaped with 15 pins. Explanation VGA ports, also called DE-15 ports, are named for their characteristic D-shape and 15 pins. A D-shaped port with 25 pins describes a parallel ports. A round port with 6 pins describes a PS/2 port. A rectangle port with one beveled corner describes a DisplayPort.

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

You are helping a customer over the phone who needs to connect a monitor that uses a digital interface. Which port should you instruct her to look for on the back of her PC?

DVI Explanation Modern digital monitors use a DVI connector (typically DVI-D or DVI-I). Serial DB-15 connectors are used for external serial devices such as modems. DB-15 3-row connectors are used to connect older analogue SVGA monitors. Firewire 6-pin connectors are used to connect firewire devices such as external hard disks and video cameras.

F- DVI

DVI- Connects DVI display devices.

A user reports that he can't send print jobs to a specific printer. You go to the user's computer and reproduce the problem. What should you do next?

Determine if anything has changed. Explanation After identifying the problem, determine if anything has changed. For example, question the user and identify user changes to computer. From there, you establish a theory of probable cause, and continue through the troubleshooting process. Before you can establish a probable cause, do additional work to see what might have changed. After selecting a probable cause, determine if escalation is required, then create an action plan and implement the solution.

A user reports that he cannot access several network files. After some investigation, you determine that the problem is with a network server. What should you do next?

Determine if escalation is needed. Explanation After you identify the most probable cause, escalate the problem if it is beyond your ability to fix of your scope of management. For example, the problem might be in the network server configuration that are not authorized to correct. When forwarding the problem onto someone else, be sure to describe the nature of the problem, the actions you have already taken and the symptoms that you to believe the problem is outside of your area of responsibility. If you have decided that escalation is not necessary, create an action plan that includes the fix and identifying possible effects of implementing the fix. After the solution has been implemented, verify that it works and that there were no unforeseen consequences. Finally, document the problem and the solution.

You purchased a new LED monitor for your computer. On the back of the monitor you see the following port (pictured below). Which type of cable should you use to connect the monitor to your computer?

DisplayPort cable Explanation The pictured port is a DisplayPort, and uses a DisplayPort cable. DisplayPorts are used by HD displays, such as LED and LCD monitors. DisplayPorts can be identified by their rectangular shape, with one beveled corner. HDMI ports have two beveled corners and are a bit smaller than DisplayPorts. VGA ports have three rows of 5 pin holes. DVI ports are larger than other video ports and have up to 24 pin holes.

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. What should you do next in your troubleshooting strategy?

Document the solution. Explanation You have completed and tested the task, and verified full system functionality. You should now document the solution, so if the same display issue returns, you or your replacement will know what to do.

Explanation

Each computer hardware component performs a specific function. Touchscreen, microphone- Input CPU, RAM- Processing Hard disk drive, DVD-RW- Storage Speakers, printer- Output Routers, switches- Networking

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 somehow 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. What else should she do?

Educate the user as to how the problem was resolved and verify that they are satisfied with the results. Explanation After resolving any incident, you should spend a few minutes with the user, client, or customer and explain how the problem was resolved and verify that they are satisfied with the results.

What is your top priority when responding to emergencies and hazardous situations?

Ensure the safety of people in the area. Explanation Your top priority in responding to events is to protect the safety of individuals. Do this before taking any other actions to protect data or the environment.

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?

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. Explanation The best way to respond is to explain to the user that this is not a task you can perform, but you will do your best to contact someone who can take care of the job and arrange for them to perform the task. You should never try to perform a task that is beyond your ability or job description. You could end up making the problem worse. If there is ever a task that you can't perform, you should not leave it up to the user to find the correct people. This can make a user feel overwhelmed or abandoned.

You are removing screws from a computer, but several have fallen into places you cannot reach. Which tool will help retrieve the small screws?

Extension Magnet

I- Fiber S/PDIF

Fiber S/PDIF-sends a digital audio signal to high-end audio devices, such as home theatre systems.

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 minute; however when you begin speaking to her, you can't understand what she is saying because she is speaking Spanish, and you do not understand Spanish. What should you do?

Find an interpreter. Explanation If you do not understand the language of a customer, then find an interpreter before solving the problem. Refusing to help will most-likely confuse, irritate, or offend the customer. You may be able to solve the problem without talking to the customer, but this action might take longer to discover the problem, and does not reflect professionalism in the workplace. Using hand gestures will most likely not work at all for technical communications.

A- HDMI

HDMI- connects HDMI display devices.

While answering Help Desk calls, a filed customer calls and complains that he cannot print to a workgroup laser printer. Which of the following should be the first question you ask?

Have you ever printed to that printer? Explanation When a customer reports a problem, it is important to ascertain the extent of the problems,. The fact that the user cannot print to a particular printer should first be approached from the standpoint of determine if they ever could and, if so, what has changed since then. .Checking cables and restarting the printer are all actions that could be taken to resolve the issue. However, you should first identify the extent of the problem before attempting solutions.

Which tool would be the best choice to remove and replace the motherboard BIOS chip?

IC Extractor

C- IEEE 1394

IEEE 1394- Connects devices that require fast communication speeds.

You are responsible for managing client workstations for your company. A frantic user calls you one morning exclaiming that "nothing is working." What should you do first in your troubleshooting strategy?

Identify the problem. Explanation Currently you have no idea what problem the user is having. The first step would be to identify the problem. You would ask questions to identify what the problem and its symptoms are. You would find out what has changed only after you know a but more about the problem. Before taking any actions, backup the system to protect user data. Establishing a theory and a plan of action occurs only after you know what the problem is.

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 which states that a friend of yours in accounting will be submitted for review if their poor work performance continues. What should you do?

Ignore the paper and tell no one of its contents. Explanation You should ignore the paper and tell no one of its contents. Complete confidentiality is expected for any sensitive information that may be found in an employee's office. It is never appropriate to share sensitive, work-related information found in an employee's office with anyone in a company.

Microphone

Input

Touchscreen

Input

You are a PC technician for a company. An employee needs 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't even see the desktop background. Which of the following actions should you take?

Install the software and leave the employee's computer exactly how you found it. Explanation The best thing to do in this situation is to leave the computer exactly as it is. Even if you think the desktop is unorganized and cluttered, you need to respect the workspace of others. Do not delete, move, or change the items on the employee's desktop. You should never look at the files on an employee's computer unless it directly pertains to what you been asked to do.

What is the purpose of an MSDS?

It documents how to safely handle and dispose of hazardous materials. Explanation A Material Safety Data Sheet (MSDS) documents how to safely handle and dispose of hazardous materials.

Which device type should typically not be plugged into a protected outlet on a UPS unit?

Laser printer Explanation Typically, a laser printer should not be plugged into a UPS. Instead, a laser printer should be plugged directly into the wall.

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 and would like to know if it is working properly. What should you do?

Let the computer warm up to room temperature before turning it on. Explanation If a computer has been in a cold environment, you should let it warm up (approx. 6-24 hours) to room temperature before turning it on. Otherwise, the heat produced by the components might cause water condensation inside the computer. This water might then damage system components. However, placing the laptop next to a heater set on High would be a poor strategy for warming the system up because it could potentially melt the plastic parts within the unit.

Of the following choices, which action could be most physically harmful to you?

Looking into the end of a fiber optic cable. Explanation Never look into a fiber optic cable or any other possible source of laser light.. Laser light can damage your eyes and even cause blindness. When working on a computer, you should use a grounding strap to protect the component from ESD damage. Using a computer without a surge protector could lead to computer damage, but doesn't have any effect on your personal safety. Ejecting an optical disc with a paperclip is an acceptable way to remove a disc if the drive door won't open.

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

Loopback Plug

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

Loopback plug

Which of the following are considered computer hardware?

Motherboard Printer Explanation The physical components that compose a computer system or network. Common hardware components include the following: Keyboard, mouse, monitor, printer. Connectors and cables. Hard Disk Drives. Circuit boards Instructions or data that are stored electronically, either on a hard drive or a special chip. Software components include the following: Operating systems Program application Hardware drivers (special programs that tell the operating system how to use the hardware)

Recently your laptop does not power on and your battery is not charging. You suspect the block on the power cord (also known as a brick) no longer works. Which too will help you troubleshot this problem?

Multimeter

Which tool would you use to measure electrical properties such as voltage, amps, and resistance?

Multimeter

A user called her organization's Help Desk to request help with connecting to a network server. The help desk technician came to her desk to resolve the issue. Once there, the technician used the user's telephone to call his girlfriend. The call lasted the entire time the technician was at the user's desk. Did the technician handle the request correctly?

No, the technician should not have used the user's telephone for a personal call. Explanation No, the technician should not have used the user's telephone for a personal call. Doing so is very unprofessioinal. He should have devoted his attention to the user and her problem while he was at her desk.

A user called the Help Desk because he's having trouble downloading new messages from the company's email server. The Help Desk technician told him to open a command prompt and try to ping the email server. The technician also told him to check his SMTP and POP3 server IP addresses. Did the Help Desk technician handle this request correctly?

No, the technician used jargon that the user probably didn't understand. Explanation By using technical jargon, the technician did not handle the request properly. While words like ping, SMTP, POP3, and IP address are familiar to system administrators and Help Desk technicians, most end users are not familiar with these terms.

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

Notebook battery Explanation Ni-Cad, NiMH, and other notebook battery types can contain regulated materials. Read the battery's documentation for a description of correct disposal procedures. Incorrect disposal can result in serious fines. While using special recycling services when disposing of computer components is environmentally friendly, most locations do not have laws regarding the disposal of most common components.

Printer

Output

Speakers

Output

You are connecting an older, dot matrix printer to a computer. The printer's cable is a D-shaped connector with 25 pins. Which port type does the printer connect to?

Parallel Explanation A D-shaped, 25-pin connector connects to the parallel port (DB-25 port) of a computer. Parallel connectors are used with older devices, such as dot matrix printers. Serial ports have nine pins and are used with serial devices (e.g., barcode scanners). VGA ports have 15 pins ( three rows of five pins) and are used with VGA monitors. USB ports are rectangular in shape and are typically not used with older devices.

A user reports that her system is running when saving files. You determine that you will need to upgrade her hard disk. You identify the components that are required and decided to schedule the repair for later that afternoon. Up to this point, which step have you forgotten in your troubleshooting process?

Perform a backup. Explanation You need to perform a backup before making changes. The backup could be used to restore current settings or data in the event of additional issues resulting from the troubleshooting process. You have already established a probable cause and created an action plan. Verifying and documenting the solution occurs after the problem has been resolved.

Explanation

Peripheral devices use specific connector types to connect to a computer. The following connector types are pictured: HDMI- Used to send high-quality, digital video and audio signals to LCD monitors and HDTVs. Fiber S/PDIF- Used for home theatre systems or Dolby Digital surround sound systems. IEEE 1394- Used to connect devices that require fast communication speeds, such as video cameras and external hard drives. VGA (DB-15)- Used by analogue monitors. DVI- Used by digital monitors, does not carry audio. RJ45- Used by Ethernet network adapters and other networking devices. USB- Used by USB devices (e.g., external storage devices) RJ11- Used by dial-modems TRS jack- Used by analogue audio devices (e.g., speakers and headphones)

Which of the following is specifically designed to test the DC voltage on a hard disk drive power connection? A. Multimeter B. Cable Tester C. Power Supply Tester D. Loopback plug

Power Supply Tester

Which of the following are safety benefits associated with encasing cables that run across the floor?

Prevents wear Reduces tripping accidents Explanation If a cable must run across the floor, encase the cable to prevent wear and secure the cable in place to reduce tripping accidents. Aesthetic improvements are not safety benefits. Individuals could still tamper with the network cables regardless of the encasing. Likewise, encasing cables does not prevent eavesdropping.

Which of the following should be handled with caution due to high operating temperatures?

Printing head in a dot matrix printer. Components within a laser printer. Explanation Components such as the printing head of a dot matrix printer or components inside a laser printer can be hot, and should be handled with caution. You should allow components to cool sufficiently before servicing to prevent burns. Typically, other components such as RAM and external hard disk drives do not operate at a high enough temperature to cause injury. The same is true of the tractor feed mechanism in an inkjet printer.

CPU

Processing

RAM

Processing

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

Processing Explanation Processing is the flow of data through a series of procedures as defined by a set of instructions. Storage is the act of saving or maintaining data. Output is the processes of presenting, displaying, or giving data. Networking is the practice of connecting two or more computers.

Which of the following devices are most susceptible to problems associated with ESD?

Processor Memory Explanation Processors and memory are most susceptible to damage caused by Electrostatic Discharge (ESD). The small size and small power requirements of these components means that the charges associated with ESD can easily damage the circuitry. CRT monitors are susceptible to damage caused by magnetic fields, but LCD/LED monitors are not susceptible to magnetic fields or to ESD. Cat 5 cables are susceptible to EMi (interference caused by electrical signals). Fiber optic cables are immune from EMI. A PC case itself has no components that can be damaged by ESD; however, it can transmit ESD to components mounted within the case.

H-RJ11

RJ11- Used by telephones and modems to send analogue signals.

G- RJ45

RJ45- Connects the computer to an Ethernet network.

Good documentation will:

Save you time and money in troubleshooting problems. Explanation By keeping adequate documentation, you can reduce the time and money spent troubleshooting. While documentation can help reduce troubleshooting, it can never completely eliminate it. Documentation helps you know when regular maintenance of hardware is required, but does not eliminate maintenance.

Which of the following are considered input devices?

Scanner Microphone Keyboard Explanation The movement of data or commands to the internal computer hardware. Input devices include: Keyboard Touchscreen Scanner Digital camera Microphone RAM is considered a processing device. A monitor and keyboard are considered output devices.

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 user's desk, you ask him to show you how they usually go about their email tasks. You quickly determine that the problem is not with the program, but that the user needs to be trained on how to use the program. You have several important work tasks that need to be completed by the end of the day, and this is not high on your priority list. what is the best way for you to respond?

Set up a time where you can sit down with the employee and show him how to complete common tasks. Explanation You should meet with the employee at a later time and show him how to use the email program. Even though teaching employees how to use their email isn't your biggest priority that doesn't mean that it isn't a high priority to the employee. Bluntly telling an employee that they don't know how to use a program properly is not respectful or helpful. You should not redirect questions to co-workers. If it is a problem that you can address yourself, it is your responsibility to provide assistance. Telling the employee to use the help utility in the email program may not be sufficient in educating them. You can tell them about the help utility for future reference, but do you best to answer any of their questions directly while you're working with them.

You are looking at a female TRS connector on the computer. Which device uses this connector?

Speaker Explanation A TRS connector is used for audio connectors such as speakers and microphones. Keyboards use either a PS/2 connector or a USB connector. Joysticks typically use a USB connector, though some connect through a DB-15 connector. Monitors use one of the many graphic ports, such as a VGA port, DVI port, or HDMI port.

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 Explanation Standardization allows components from different manufacturers to be interchangeable. If a component meets the specified standards, it will work in the computer-- regardless of manufacturer. Componentization means that a computer is a combination of several constituent parts that can be easily replaced by a field=replaceable unit (FRU). Firmware is a special type of software that has been embedded in the memory of a hardware component. Plug and play allows devices to work with computers without the need for additional configuration on the computer.

DVD-RW

Storage

Hard disk drive

Storage

Which of the following devices help protect against temporary, above-normal voltages?

Surge protector Explanation A power surge is a temporary increase in excessive voltage to a computer. A surge protector helps protect against power surges. A power strip may or may not include surge protection circuits. An ESD grounding strap should be worn when touching anything inside a computer to avoid shocking computer components by not sharing a common ground.

As you troubleshoot a problem during a customer appointment, you discover the problem is directly related to the customer's actions. How should you best address the situation?

Tactfully explain the problem without accusing or judging the customer. Explanation If the problem is related to user error or is caused by actions taken by the customer, tactfully explain the problem without accusing or judging the customer. Avoid using jargon, abbreviations, and acronyms. When you do use technical terms, take the time to explain them in simple language. Avoid being judgmental, insulting, or calling the customer names.

An employee demands that she needs more RAM for her computer in order to complete her work tasks, but you know that her department isn't budgeted for new equipment. Your supervisor is the only one that has authority to allocate department funds. How should you respond?

Tell the employee that she isn't currently budgeted 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. Explanation The best response would be to tell the employee that she isn't currently budgeted for equipment upgrades, but that you will let your supervisor know about her request so it can be properly determined if new RAM can be acquired. You should not simply dismiss an employee's request. Perhaps this is not a need that is known to your supervisor and can be remedied. Though purchasing her own RAM is an option. It is the company's responsibility to supply sufficient equipment and supplies for their employees to complete their tasks. You do not have the authority to tell an employee that they will receive new supplies. All requests need to be directed to your supervisor first.

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. What should you do next?

Test the solution Explanation After implementing the solution, verify full system functioning. Make sure that the solution has fully fixed the problem and has not caused any other problems. Document the problem and solution after it has been fixed and verified. Determine if escalation is needed and create an action plan before implementing 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. What should you do next in your troubleshooting strategy?

Test the solution. Explanation After you implement a solution, you should always verify full system functionality. Sometimes more than one problem exists, or your solution may not have solved the problem. For example, in this case an incorrect driver for the video card could potentially continue to cause display issues. By verifying system functionality, you can ensure the problem is completely resolved issues. By verifying system functionality, you can ensure the problem is completely resolved. Explaining what you did, implementing preventative measures, and documenting the solution would occur after you have tested the solution to make sure the problem is completely fixed.

What are loopback plugs used for?

Testing ports by returning output signals as input

What does occasional beeping from the UPS mean?

The computer is running on the UPS battery power. Explanation Most UPS manufacturers indicate AC power outages and internal battery use with occasional beeping, usually about 4 beeps every 30 seconds. Some UPS units have a switch that you can use to disable the warning signal when running on battery power. Other types of beeps, such as rapid chirping or beeps at more frequent intervals, indicate other UPS problems. A failed connection between the UPS and the computer or a low battery on the UPS would most likely provide a visual notification on the computer screen from the UPS monitoring software, not an audible beep.

B- Thunderbolt

Thunderbolt- Combines PCI Express (PCIe) and DisplayPort signals into a single interface.

Which connector on the back of a computer is used to attach a mouse to a modern PC system?

USB A Explanation A mouse is most commonly attached to a computer using a USB A connector. 6-pin mini-DIN connectors were used to attach a mouse in the past, however mini-DIN connectors are not used today. DB-15 connector with two rows is commonly used for joysticks. The DB-15 connector with three rows is used for connecting CRT monitors to the video card. The RJ-45 connector is used fro Ethernet network connections. USB B connectors are commonly used for connecting printers and scanners.

D-USB

USB-Connects external USB device (e.g., keyboard, mouse, printer, and storage devices)

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?

VA Explanation The size of a UPS is specified by a volt-amp (VA) rating. The larger the VA rating of the UPS, the longer the UPS can keep the system running in the event of a power failure. Volts are only part of the rating system used for UPS units. Ohms are not used to rate UPS units nor is wattage.

E-VGA

VGA- Connects VGA display devices.

You are looking at a high-density (three-row) female DB-15 connector on the computer as shown in the figure below. What device uses this connector?

VGA/SVGA monitors Explanation A VGA/SVGA monitor uses a high-density (three-row) female DB-15 connector on the computer. Serial devices, such as external modems, connect to a male DB-9 connector, IEEE 1284 parallel devices, such as printers, connect to DB-25 connectors. USB storage devices use USB connectors.

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

Verify that cooling fans are not circulating air in the wrong directions. Vacuum dust from the system regularly. Explanation Vacuuming dust from the system is critical for keeping the computer cool. In addition, verify that your cooling fans are blowing air in the right direction and are not working against each other. Do not remove any slot covers in an attempt to cool the computer. A lack of slot covers decreases the fan's ability to remove hot air from inside the computer.

The computer is running on the UPS battery power

What does beeping from the UPS mean?

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

You should clean the monitor while it is powered off with a lint-free cloth. Explanation Cleaning cloths should always be lint free. In general, an LCD monitor is best cleaned using a dry cloth. While many newer monitors do have certain automatic calibration features, self-cleaning is not one of them.