Check Your Understanding
You can find the answers to these questions in Appendix A, “Answers to ‘Check Your Understanding’ Questions.”
- How should a technician discharge static buildup while working on a computer system?
- Maintain contact with the painted part of the computer case.
- Maintain contact with an unpainted part of the computer case.
- Touch an antistatic wrist strap before touching any computer equipment.
- Touch an antistatic mat before touching any computer equipment.
- Which of the following is a fact sheet that summarizes information about material identification, including hazardous ingredients that can affect personal health, fire hazards, and first aid requirements?
- ESD
- MSDS
- OSHA
- UPS
- Which two statements are true of static electricity? (Choose two.)
- It can distort wireless signals.
- More than 10,000 volts can build up on a person.
- As few as 30 volts can damage computer components.
- It will not harm computer components as long as the computer is plugged in.
- Keeping the air cool and dry can decrease the buildup of static electricity.
- It is generated by devices such as motors, power lines, and radio transmitters.
- Which recommendation should be followed first when a fire in the workplace is out of control?
- Try to use the elevators to get to the lowest floor faster.
- Get out of the room or building and contact emergency services for help.
- Use the company water system to stop the fire from extending to other areas.
- Try to control the fire with proper extinguishers.
- Which device is designed specifically to protect computers and electrical devices from excess electrical voltage?
- Power strip
- Standby power supply
- Surge protector
- Uninterruptible power supply
- Which piece of software is designed to protect against unauthorized communications to and from a computer?
- Security center
- Port scanner
- Antimalware
- Antivirus
- Firewall
- What is an accepted method for cleaning computer components?
- Using ammonia to clean the LCD screen
- Using rubbing alcohol to clean component contacts
- Using a lint-free cloth to remove dust inside the computer case
- Using glass cleaner on a soft cloth to clean the outside of the mouse
- Which tool would be used to scan Windows critical system files and replace any corrupted files?
- SFC
- CHKDSK
- Fdisk
- Defrag
- Which condition refers to a sudden and dramatic increase in voltage, which is usually caused by lighting?
- Brownout
- Sag
- Spike
- Surge
- Which tool can be used to take resistance and voltage measurements?
- Multimeter
- power supply tester
- cable tester
- loopback plug