CH12

Question 1

In Sleep Mode, the _____ remains powered; everything else shuts off?

Answer 1

Memory

Question 2

How long can a laptop remain in Hibernate mode without running out of battery power?

Answer 2

Indefinitely

Hibernate mode uses No Power, so it can remain in that state indefinitely regardless of the battery state or capacity.

Question 3

How should you clean removable media, such as a DVD?

A. Use a Soft Cloth and Wipe with a Circular Movement
B. Use a Soft Cloth and Wipe inside to outside with a straight movement
C. Use a Soft scrub brush and wipe left to right
D. Put the disk in the dishwashing machine

Answer 3

B. Use a Soft Cloth and Wipe inside to outside with a straight movement.

Question 4

Rich has inherited a computer that used to live in his uncle’s machine shop. What should he use to clean up parts such as the case, keyboard, and mouse?

A. A Dry, Soft Cloth
B. A Soft Cloth with distilled water
C. A Soft Cloth with mild soap and water
D. A Soft Cloth with a commercial cleaning solution

Answer 4

C. A Soft Cloth with mild soap and water

Question 5

What standard offers computer part makers guidelines for making environmentally friendly parts?

A. FTC
B. RIAA
C. RoHS
D. VHS

Answer 5

C. The Restriction of Hazardous Substances (RoHS) directive has guidelines for making products more environmentally friendly.

Question 6

What can you use to prevent ESD from damaging components when cleaning inside a computer?

Answer 6

Antistatic Wrist Strap

Question 7

What should you use to remove dust and animal hair from inside a computer case?

Answer 7

Compressed Air

Question 8

What problem can missing slot covers on the case cause?

A. Electromagnetic interference from other electronics nearby
B. Electrostatic discharge from dust and animal hair
C. Disruption of airflow inside the computer leading to overheating
D. Disruption of airflow outside the computer leading to overheating

Answer 8

C. Disruption of airflow inside the computer leading to overheating.

Question 9

What computer component contains alot of lead and must be recycled?

A. CRT
B. Toner Cartridge
C. Ink Cartridge
D. Hard Disk Drive

Answer 9

A. CRT

CRT Monitors contain lead, so it must be disposed of properly, not thrown out with regular trash.

Question 10

In California, how should small alkaline batteries be disposed of?

A. Regular Trash
B. Recycling Center
C. Incinerated
D. Any of the Above

Answer 10

B. Recycling Center

Elsewhere in the US, they can be thrown in the regular trash.
Batteries should NEVER be incinerated.

Question 11

Which type of contingency plan is specific to an IT system or Service?

Answer 11

Disaster Recovery

Disaster Recovery plan provides details for how to restore a specific failed IT system or service to a functional state as quickly as possible.

Question 12

Power Management?

Answer 12

Means controlling how the computer uses power, with a focus on using less power and making sure power is available when needed.

Question 13

Energy-Efficient Devices?

Answer 13

Use less energy overall than nonefficient equivalents and may have special energy convservation features.

Question 14

Leaving the PC Running - Consequences?

Answer 14

1. Financial Side - If you leave a Desktop Computer on all the time, you will pay about $200+ a year for its electricity. A laptop is less, around $65+ per year. The busier a computer is, such as with increased disk I/O, a larger monitor, and so on, the more power it will consume.
2. A running computer generates heat, and heat is an enemy of computers. If certain chips like the CPU get too hot, they will stop working until they cool down enough. Very high temps can damage a chip immediately, but damage from less intense heat can also accumulate until the chip fails.
3. If your computer runs on battery power, leaving it on all the time drains the batter. That’s fine if you close to an AC outlet where you can recharge the batter, but you won’t always be.

For those reasons, you should consider either shutting the computer down entirely or putting it in a low-power mode whenever you are going to be away from it for more than a few minutes.

Question 15

Low Power Modes?

Answer 15

Sleep - Keeps Memory powered but shuts down all other components. As a result, the computer uses very little power, just enough to allow the Memory to retain its contents. On battery power, a laptop can last about a day in this mode (Depending on battery capacity and conditions of course). Resuming from sleep mode is very fast, just a few seconds in most cases.

Hibernate - Copies Memory content to a reserved area of the hard drive and then powers off ALL components. Since the PC is not using any power, it can remain in Hibernate mode indefinitely. Resuming from Hibernate takes slightly longer than from Sleep, about 15 seconds on average.

Question 16

Power Plans?

Answer 16

High Performance - Use when power consumption and battery life are less important than PC always being instantly available.

Balanced - Provides moderate power savings, this is the Default.

Power Savings - This gives the most power savings, use this when conserving power and/or battery time is most important.

Question 17

Cleaning/Maintaining Computer Hardware?

Answer 17

Properly maintained computer starts with a clean, orderly environment.
You should also keep external components clean and free of dust and hair.

Use a Vacuum cleaner or soft cloth to clean the case, mouse, and keyboard.
Use special glass cleaner designed for computer monitors, not standard household glass cleaner.
For exterior components, use a spray cleaner designed for electronics.

Use Mild Soap and Water with a Soft Cloth to Clean any dirty external parts of the computer.

Question 18

Cleaning Monitors and Removable Media?

Answer 18

Requires a little caution, especially with the substances used to clean them. Glass Cleaners containing ammonia for example will harm some LCD screens. A Tiny bit of moisture under the screen panel on any monitor can take out the electronics as soon as you plug in the monitor.

To clean a Monitor, use a damp cloth, or a mild soap and water solution. Make sure the cloth itself is super-soft, like a chamois or microfiber towel. Spray the cleaner on the cloth and then wipe, don’t spray directly onto the screen.

With removable media, such as CD-R and BD-RE disks, you need to take care not to scratch, crack, or warp the media with cleaning. Use a soft cloth, possibly damp, and wipe from the inside edge to the outside edge with a straight movement. (DO NOT wipe in a circular motion).

Question 19

Cleaning Inside a Desktop PC?

Answer 19

Vents inside the case over time can accumulate dust and hair. If too much debris builds up, the computer could overheat and break down. It’s important to open the case and clean the inside every once in a while.

Compressed Air to blow out dust, hair, and anything else out of the case. You can also use a special vacuum cleaner designed for electronics to vacuum out the inside of the case. Don’t use your normal vacuum, you can find Electronics or Antistatic Vacuums.

Question 20

Acronym: ESD?

Answer 20

Electrostatic Discharge - Can permanently damage or destroy computer components inside the case. ESD is the transfer of static electricity from you to something you touch. Use a antistatic wrist strap and connect one side to your wrist and the other to the power supply or CASE to ground yourself when working inside your case handling components.

Question 21

Acronym: RoHS?

Answer 21

Restriction of Hazardous Substances (RoHS) - a directive to make their products more environmentally friendly and thus easily disposed of properly. RoHS standard regulates toxic substances, such as lead, mercury, and cadmium. RoHS has helped change the way manufacturers create circuit boards.

Question 22

Disaster Recovery?

Answer 22

Bad things Happen, and sometimes we can’t control that. We can control our Response to those negative incidents. Having a Contingency plan in place minimizes how these situations affect IT systems and related business Processes.

Disaster Recovery Plan (DRP) contains detailed procedures related to the recovery of a specific system or service with the least minimal impact.

Question 23

Incident Response?

Answer 23

Incident Response Plans (IRPs) provide detailed direction when negative incidents occur. Assessing the situation is the first thing that must happen, followed by determining the severity of the incident and prioritizing incident response activities.