A+ Cert. Homework Ch. 1

Which of the following protects a computer from electrostatic discharge?

• IC extrator
• Anti-static wrist strap
• Multimeter
• Power supply tester

ESD is most likely to occur:

• In a warm, dry atmosphere.
• In a warm, humid atmosphere.
• In a cool, dry atmosphere.
• In a cool, humid atmosphere.

Which of the following is a myth regarding electrostatic discharge (ESD)?

• Sitting down or standing up from a chair can create static electricity.
• If you can't feel ESD, the surge is not sufficient to harm computer components.
• Most often, ESD degrades computer components, and they fail at a later date.
• Simply touching an object can create static electricity. You do not have to rub the object. 

Hard drives are best stored in a(n):

• Plastic bag
• Refrigerator
• Static-shielded bag
• Foam-lined box

The fan in a 450-Watt power supply is malfunctioning.What action should you take? 

• Open the power supply and oil the fan.
• Do not service the computer until the CPU fan also fails.
• Remove and replace the power supply.
• Open the power supply and replace the defective fan unit. 

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

• Using a computer without a surge protector.
• Wearing a grounding strap while installing a modem.
• Looking into the end of a fiber optic cable.
• Force-ejecting a stuck DVD disc using a straightened paper clip. 

Which of the following devices can store large amounts of electricity even when unplugged?

• CRT monitor
• DVD optical drive
• Hard disk drive
• LCD monitor

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

• Ensure the safety of people in the area.
• Prevent the release of hazardous elements into the atmosphere.
• Protect your organization's data.
• Reduce risk and exposure to litigation. 

What is the purpose of an MSDS?

• It monitors the potential for electrostatic discharge.
• It prevents dust from accumulating on electrical equipment.
• It protects the service technician from large voltages.
• It documents how to safely handle hazardous materials. 

Which of the following is an important aspect of evidence gathering?

• Restoring damaged data from backup media
• Monitoring user access to compromised systems
• Backingup all log files and audit trails
• Purging transaction logs