IST-188 - YTC - CompTIA A+ Guide to PCs - Chp. 4 - Test 2

Here's how to open the computer case with ESD precautions: 1. Place an antistatic mat under the work area. 2. Wear an antistatic wrist strap. 3. Shut down the computer. 4. Disconnect the power cord from the computer. 5. Disconnect all other external cables from the computer. 6. Open the computer case by unscrewing screws, releasing a slide mechanism, etc.

Here's how to open the computer case with ESD precautions: 1. Place an antistatic mat under the work area. 2. Wear an antistatic wrist strap. 3. Shut down the computer. 4. Disconnect the power cord from the computer. 5. Disconnect all other external cables from the computer. 6. Open the computer case by unscrewing screws, releasing a slide mechanism, etc.

What type of fire extinguisher can be used on electronic equipment?

Type C or A-B-C

What most likely causes the back of a page to come out dirty on a laser printer? A Lightweight paper B Contaminated fuser C Bad corona wire D High humidity

B Contaminated fuser

Here's how to assemble a PC with a Socket 939 motherboard:

1. Drag the ATX 24-pin power connector onto the ATX 24-pin slot on the motherboard. 2.Drag the top connector of the floppy disk drive onto the FDD port on the motherboard. 3. Drag the processor onto the processor slot. 4. Drag the 184-pin DDR SDRAM onto one of the RAM slots.

Here's how to install a motherboard, processor, and processor fan in a new PC:

1. Drag the motherboard onto the motherboard mounting area. 2. Drag the processor onto the CPU slot of the motherboard. show figure 3. Drag the processor fan onto the processor of the motherboard. show figure 4. Click the processor fan connector slot to identify it.

Here's how to transmit and process user-entered data for printing:

1. The user enters data with a keyboard. 2. The keyboard converts typed characters to binary code. 3. The binary-code bits are transmitted to computer memory and the CPU for processing. 4. The CPU transmits the processed binary data to the printer. 5. The printer converts the binary data into characters, then prints it.

Here's how to prepare a computer for an upgrade:

1.Turn off the computer. 2.Disconnect the AC power. 3.Turn over the computer. 4.Remove the battery.

Which unit would you recommend for the help desk people who sit at a computer for a 24/7 operation where help must be provided at all times? A A UPS B A surge protector C An upgrade power supply D A line conditioner

A A UPS

Which of the following can prolong the life of a computer and conserve resources? (Select all that apply.) A A preventive maintenance plan B Antistatic mats and pads C Upgraded power supply D A power plan E Using a Li-ion battery as a replacement F Extra case fans

A A preventive maintenance plan D A power plan

Which power component has a 20- or 24-pin connector? A ATX power supply B UPS C Line conditioner D SPS E Surge protector

A ATX power supply

Which of the following can cause a laser printer to pull multiple pieces of paper at a time? A Humidity B Worn Fuser C Defective toner cartridge D Bad transfer corona

A Humidity

The characteristics of power conditioning equipments are given below:

UPS (Uninterruptible Power Supply): Protects against brownouts. Converts battery power from DC to AC for use by computers and other devices. Uses battery power to boost the voltage when it drops below a preset level. Provides a clean, continuous AC signal for use by computers and other sensitive electronics. Surge Protector: Channels extra voltage into a grounding wire while letting the normal voltage flow. Doesn't protect against noise, brownouts, or blackouts. Filters out spikes and surges. Protects telephone and cable lines.

Which printer type creates a digital image by propelling droplets of ink onto paper? A Inkjet B Impact C Laser D Thermal

A Inkjet

What is true if you attempt to service an iPad2 in the field? A It voids the warranty. B The device performs a remote wipe. C The parts must be ordered in advance. D A secret password is required.

A It voids the warranty.

Which of the following issues or failures can result in a dim display? A LCD inverter B inappropriate Fn key combination C LCD-CCFL backlight D Motherboard needs to be repaired or replaced

A LCD inverter

Which of the following laser printer components scans across the photosensitive drum? A Laser scanner B HVPS C DCPS D Toner cartridge

A Laser scanner

Which of the following is affected by the power supply wattage rating? A Number of internal storage devices B Number of power supply connectors C Speed of the processor D Type of processor E Type of power supply connectors

A Number of internal storage devices

Which of the following laptop expansion options follows the PCMCIA standard? A PC card B Express Card C Flash D SODIMM

A PC card

A computer will not power on. After checking the wall outlet and swapping the power cord, what would the technician use next? A Power supply tester B UPS C Antistatic wrist strap D Magnetic screw driver E Nonmagnetic screw driver

A Power supply tester

Which issue can result in even yet light printing? A Printer set for Economode B Low toner C Imaging drum wiper blade D fuser

A Printer set for Economode

Which of the following is NOT a normal part of regular maintenance of an inkjet printer? A Remove accumulated toner. B Replace ink cartridges. C Remove accumulated dust. D Clean the purge unit.

A Remove accumulated toner.

Which of the following would most likely be the cause of vertical black lines running down a page coming from a laser printer? A Scratch in the EP drum B Spilled toner C Foreign matter on the transfer corona wire D Improper driver

A Scratch in the EP drum

What does it mean when a laptop appears to shut down and the power light is blinking? A System is in power saving mode B Bad memory C Display issue D Virus attack

A System is in power saving mode

Which print process is the least suitable for long-term storage documents? A Thermal B Laser C Inkjet D Impact

A Thermal

What user-interface feature on a mobile device is used when you drag your finger up and down or left and right to scroll the mobile display? A Touchflow B Multitouch C Multiflow D Sliding Window

A Touchflow

Which component is NOT typically a part of the laser printer replacement cartridge? A Transfer corona B Scaper blade C Drum D Primary corona

A Transfer corona

What type of PCMCIA card is used for memory? A Type I B Type II C Type III D PCMCIA cards cannot be used for memory

A Type I

Which of the following functions can run a laptop battery down if left enabled? A CAM B NAT C APIPA D SSL

A CAM

What would happen if you removed the battery from the motherboard by accident?

All BIOS configuration settings will have to be reset because they will be lost.

Ampere: A measure of electrical current Volt: A measure of electric potential difference Watt: A measure of electrical power Ohm: A measure of resistance to electricity

Ampere: A measure of electrical current Volt: A measure of electric potential difference Watt: A measure of electrical power Ohm: A measure of resistance to electricity

List three tasks commonly performed during preventive maintenance.

Answers will vary, but sample answers are provided: vacuum, clean floppy heads, clean keyboard, clean printer, clean CD/DVD/BD drives, clean monitor, use compressed air in hard to reach places, update antivirus software, inventory hardware, and update the operating system.

List three recommendations for saving power on a laptop.

Answers will vary, but sample answers include the following: turn off wireless networks, dim the screen, don't save often, avoid using USB ports, avoid temperature extremes, add memory, and configure power options.

List three recommendations for good technical written communication.

Answers will vary, but some answers could include the following: don't use technical jargon, send an email to appropriate personnel (don't copy other personnel unnecessarily), use spelling and grammar checkers, use complete sentences, use proper grammar, use proper punctuation and capitalization, be professional, don't write an email when angry, document technical problems in a professional manner.

Computers used in a grocery store warehouse for inventory control have a higher part failure rate than the other company computers. Which of the following is most likely to help in this situation? A An antistatic wrist strap B A preventive maintenance plan C Antistatic pads D High wattage power supplies

B A preventive maintenance plan

How would a technician normally access a memory module that needs to be replaced on a netbook? (Select the best answer.) A By removing the DC power jack B By removing a secured bottom compartment C By removing the speaker D By removing the display

B By removing a secured bottom compartment

Which laser printer component is made up of rollers and a heating lamp? A Electronic control package B Fusing assembly C Transfer corona assembly D Toner cartridge

B Fusing assembly

Laptops use ____________ video displays. A CRT B LCD C PLA D HDMA

B LCD

Which statement is true about laptops and smaller mobile devices? A Handheld mobile device parts are usually field serviceable. B Most laptops use mechanical drives. C Most handheld mobile devices use mechanical drives. D Laptops use multitouch and touch flow technology.

B Most laptops use mechanical drives.

What should be the final step of laser printer maintenance? A Replace toner cartridge. B Print a test page. C Clean and lubricate internal parts. D Replace filters

B Print a test page.

Which peripheral is used to convert printed data into digital format? A KVM B Scanner C Biometric device D Mouse

B Scanner

Which part would be specialized when used with a laser printer? A Surge strip B Vacuum C Multimeter D Antistatic wrist strap

B Vacuum

What is it called when the image of the character is written to the drum during laser printing? Fusing B Writing C Charging D Toning

B Writing

What is required to set up a PCMCIA card for use? A Enable in the BIOS. B Set jumpers C Plug it in and reboot. D Plug it in.

D Plug it in.

When connected to the PC, how is an Android device seen by the PC? A As memory B As an interface C As removable storage D As an internal hard drive

C As removable storage

Which of the following is a value used to express the memory timing? A SODIMM B Form Factor C CAS D MHz

C CAS

The malfunction of which part causes vertical white lines running down a page coming from a laser printer? A Drum B Fuser C Corona wire D Driver

C Corona wire

Which of the following laptop features provides additional connectivity options to a laptop? A Port replicator B Cable lock C Docking station D Physical laptop lock

C Docking station

Laptops often allow you to switch the display to an external monitor. This is accomplished through what type of key combination? A Alt B Ctrl C Fn D Shift

C Fn

What key is used typically used on a laptop to switch the display to an external monitor? A Alt B Ctrl C Fn D Shift

C Fn

What is it called when a user hacks an iOS operating system? A Rooting B Hacking C Jailbreaking D Backdooring

C Jailbreaking

Which of the following cellular technologies is used to send data at 4G speeds? A GSM B 3GPP C LTE D Edge

C LTE

A computer will not power on. Which of the following would be used to check the wall outlet? A Power supply tester B UPS C Multimeter D POST

C Multimeter

Which two of the following would most likely cause a loud noise on a desktop computer? (Select two.) A Motherboard B USB drive C Power supply D Case fan E Memory F PCIe adapter

C Power supply D Case fan

After the completion of a printer driver update, the printer is printing garbled nonsense. What is the quickest action you can use to get the printer working? A Reboot the computer B Run the update again C Roll back the driver. D Unplug the printer and plug it back in.

C Roll back the driver.

What component causes the toner to move from the drum to the paper during the laser print process? A Fuser B Primary corona C Transfer corona D Scraper blade

C Transfer corona

What type of fire extinguisher can be used on electronic equipment? A Type A B C B Type B C Type C D Type D

C Type C

Lightning is prevalent in Jacksonville, Florida. What would you recommend for home owners who would like to keep working even when a storm is rolling through? A Surge protector B Phone line protector C UPS D Line conditioner

C UPS

When an image from a document comes off on your hand, what should you replace on the laser printer? A Corona wire B Driver C Fuser D Drum

C Fuser

On what operating system is the Android based? A Windows B UNIX C Linux D Apple

C - Linux

What type of fire extinguisher can be used on electronic equipment? A Type A-B-C B Type B C Type C D None of these

Type C

Remember

Clamping voltage: The level at which a surge protector starts protecting the computer. The lower the value, the better the protection. Clamping speed: How much time elapses before protection begins. The lower the value, the better the protection. Surge protectors cannot normally protect against power spikes (over voltages of short duration) because of their rated clamping speed. Energy absorption/ dissipation: The greater the number of joules (a unit of energy) that can be dissipated, the more effective and durable a surge protector is. This feature is sometimes called energy absorption. A surge protector rating of 630 joules is more effective than a rating of 210 joules. TVS (transient voltage suppressing) rating: This is also known as the response time. The lower the rating, the better is the surge protector. For example, a 330 TVS-rated surge protector is better than a 400 TVS-rated one. UL rating: UL (Underwriters Laboratories) developed the UL 1449 VPR (voltage protection rating) standard to measure the maximum amount of voltage a surge protector will let through to the attached devices. The UL 497A standard is for phone line protection, and the UL 1283 standard is for EMI/RFI.

fire extinguisher classes

Class A: Solids (wood, paper, rubber, fabrics, and plastics) Class B: Flammable liquids and gases (gasoline, oils, paint, lacquer, and tar) Class C: Flammable glasses (propane, butane, and methane) Class D: Metals (aluminium, magnesium, and titanium)

When disassembling a computer, which tool will help you remove the memory module? A Magnetic screwdriver B Needlenose pliers C #1 or #2 Phillips screwdriver D Antistatic wrist strap

D Antistatic wrist strap

You can connect to one of your Bluetooth devices but not another. What is not the source of the problem? (Choose all that apply.) A Bluetooth adaptor on the mobile device B Settings between the Bluetooth device and the laptop C The nonfunctional Bluetooth device D Bluetooth disabled in the BIOS of the mobile device

D Bluetooth disabled in the BIOS of the mobile device A Bluetooth adaptor on the mobile device

Which of the following would likely cause ghosting on paper coming from your laser printer? A Bad HVPS unit B Broken fuser C Poor quality paper D Broken cleaning blade

D Broken cleaning blade

Which substance should NOT be cleaned up with a regular vacuum cleaner? A paper scraps B Cable scraps from crimping C Pieces of a broken circuit board D Ink toner

D Ink toner

Which of the following would help with computer heat? A Increased power supply wattage B Larger power supply form factor C Unplug unused power connectors D Install case fans

D Install case fans

Remeber this

Delay Prior to Thermal: Defines the number of minutes the system waits to shut down the system once an overheating situation occurs CPU Warning Temperatures: Specifies the CPU temperature at which a warning message is displayed on the screen ACPI Function: Enables or disables ACPI This is the preferred method for disabling ACPI in the event of a problem Soft-off: Specifies the length of time a user must press the power button to turn off the computer Power on by Ring, Resume by Ring, or Wakeup: Uses less power and only wakes from S4/S5 states with the power button or a RTC (real time clock) alarm, such as waking the computer to complete a task Deep S4/S5: Allows the computer to wake when an adapter or an external device supports Wake on Ring Resume by Alarm: Allows a date and time to be set when the system is awakened from Suspend mode and commonly used to update the system during nonpeak periods Wake Up on LAN: Allows the computer to wake when a Wake on LAN signal is received across the network CPU THRM Throttling: Allows a reduction in CPU speed when the system reaches a specific temperature Power on Function: Specifies which key (or key combination) will activate the system's power Hot Key Power On: Defines what keystrokes will reactivate system power. Doze Mode: When the system is in a reduced activity state, the CPU clock is throttled (slowed down). All other devices operate at full speed. After Power Failure: Sets power mode after a power loss

the fire extinguisher substances

Dry Chemicals: Uses an extinguishing chemical to put out a fire. Halon: Interrupts the chemical reaction of the fire to put it out. Water: Used by Class A fire extinguishers as a propellant. CO2: Used by Class B and Class C fire extinguishers to cool the burning items and surrounding air.

An optical drive randomly becomes unavailable, and after replacing the drive, the technician now suspects a power issue. What could help in this situation? A A UPS B A surge protector C Antistatic wipes D A preventive maintenance plan E A multimeter

E A multimeter

Surge suppressor: Provides the best and least-expensive power protection for a computer and monitor. UPS (Uninterruptible Power Supply): Provides the best protection for a server and serves as battery backup in the event of a power failure. This is because most servers contain crucial and sometimes real-time data. Note: Connecting a laser printer to a UPS could result in damage to the printer. Line conditioner: Provides the best protection for a laser printer, which should be the only device plugged into it, because of the printer's high current draw. The line conditioner protects specifically against "dirty" power.

Surge suppressor: Provides the best and least-expensive power protection for a computer and monitor. UPS (Uninterruptible Power Supply): Provides the best protection for a server and serves as battery backup in the event of a power failure. This is because most servers contain crucial and sometimes real-time data. Note: Connecting a laser printer to a UPS could result in damage to the printer. Line conditioner: Provides the best protection for a laser printer, which should be the only device plugged into it, because of the printer's high current draw. The line conditioner protects specifically against "dirty" power.

Remember this

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Symbols of common electrical components are given in the figure below:

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Remember

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