IT Essential Chapter 2 V 5.0

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1. Which tool in Windows XP gives a technician access to initialize disks and create partitions?
  • Defrag
  • Scandisk
  • Format
  • Disk Management*
  • Disk Cleanup
2. Which Windows XP command-line utility scans the critical files of the operating system and replaces any files that have been corrupted?
  • System File Checker*
  • Disk Cleanup
  • Scan System
  • Defrag
  • Disk Management
  • Chkdsk
3. Which two types of tools can help protect a computer from malicious attacks? (Choose two.)
  • Disk Management
  • Spyware Remover*
  • Antivirus software*
  • Disk Cleanup
  • Scandisk
  • Fdisk
4. A technician wants to limit the chances of ESD affecting the workspace. Which three precautions should be taken? (Choose three.)
  • Ensure antistatic mats are on the workbench and floor.*
  • Keep humidity in the environment very low.
  • Ensure that all flooring is carpeted.
  • Wear an antistatic wrist strap.*
  • Keep all components in antistatic bags.*
  • Store all computer components in clear plastic bags.
5. What are two significant sources of EMI? (Choose two.)
  • infrared mice
  • electrical storms*
  • RAM modules
  • power lines*
  • LCD monitors
6. Which precaution should be taken when working inside computer systems?
  • Avoid using magnetized tools.*
  • Wear ESD protection to repair monitors in humid environments.
  • Leave the power cord attached to an outlet for grounding.
  • Avoid using ESD wrist straps and ESD mats simultaneously.
7. Which cleaning solution is recommended to clean the contacts of computer components?
  • isopropyl alcohol*
  • glass cleaner with ammonia
  • water that is mixed with a small amount of dishwashing liquid
  • rubbing alcohol
8. Why should a pencil never be used as a tool when working inside a computer?
  • Pencil lead is conductive.*
  • The lead in a pencil can induce current.
  • A pencil can hold a static charge.
  • Pencil lead is corrosive.
9. The performance of a computer is reduced after using the Internet. Which three tools could be run to try to improve the performance of the computer? (Choose three.)
  • Fdisk
  • a BIOS updater
  • Spyware remover*
  • Defrag*
  • Disk Cleanup*
  • Device Manager
10. Why is documentation of all services and repairs an important organizational tool for a technician?
  • It allows the public sharing of information on the Internet.
  • It increases the cost of services and repairs.
  • It reduces the technical skills required of new technicians.
  • It provides reference material for similar problems when they are encountered in the future.*
11. How does an inline UPS protect computer equipment against electrical power brownouts and blackouts?
  • by stopping the flow of voltage to the computer
  • by grounding excess electrical voltage
  • by switching from main power to a standby power source
  • by using a battery to supply a constant level of voltage*
12. Which two actions pose a potential safety hazard to a technician? (Choose two.)
  • standing on an antistatic mat while working on a computer
  • plugging a printer into an UPS
  • using a magnetic screwdriver while working on a hard drive
  • cleaning the inside of the computer while it is turned on*
  • wearing a wrist strap while working inside a power supply*
13. Which circumstance increases the likelihood of ESD damage to a computer?
  • self grounding against the computer case
  • using a magnetic screwdriver while working on a hard drive
  • plugging a printer into an UPS
  • working in low levels of humidity*
14. Which tool is designed to loosen or tighten crosshead screws?
  • torx driver
  • phillips screwdriver*
  • flat head screwdriver
  • hex driver
15. Which tool could potentially cause data loss on hard disk or floppy drives?
  • compressed air
  • a magnetic screwdriver*
  • a lead pencil
  • a computer vacuum cleaner
16. Which condition refers to a reduced voltage level of AC power that lasts for an extended period of time?
  • sag
  • spike
  • surge
  • brownout*
17. A technician accidentally spills a cleaning solution on the floor of the workshop. Where would the technician find instructions on how to properly clean up and dispose of the product?
  • the local hazardous materials team
  • the insurance policy of the company
  • the material safety data sheet*
  • the regulations provided by the local occupational health and safety administration
18. Which two devices commonly affect wireless networks? (Choose two.)
  • microwaves*
  • cordless phones*
  • external hard drives
  • home theaters
  • Blu-ray players
  • incandescent light bulbs
19. What is a proper directive for using a can of compressed air to clean a PC?
  • Use a long, steady stream of air from the can.
  • Do not spray the compressed air with the can upside down.*
  • Do not use compressed air to clean a CPU fan.
  • Spray the CPU cooling fan with the compressed air to verify that the fan blade is spinning freely.
20. Which type of fastener is loosened and tightened with a hex driver?
  • six sided bolt*
  • cross head screw
  • slotted screw
  • torx bolt