IT Essential Chapter 4 Overview of Preventive Maintenance

Which task should be part of a software maintenance routine?

• Check for and secure any loose cables.
• Remove dust from the power supply.
• Defragment the hard drive.
• Back up the data, reformat the hard drive, and reinstall the data.

Which of the following is NOT a purpose of documenting the information that is obtained from the customer in the work order?

• to create a centralized database of possible problems with solutions

• to use the information for marketing purposes

• to keep track of parts that are ordered

• to use the information to aid in solving the problem

What is a recommended procedure to follow when cleaning computer components?

• Blow compressed air on cooling fans so that they will spin when dust is being removed.
• Hold cans of compressed air upright while spraying.
• Use window cleaner on LCD screens.
• Remove the CPU before cleaning.

A user has opened a ticket that indicates that the computer clock keeps losing the correct time. What is the most likely cause of the problem?

• The CPU needs to be overclocked.
• The operating system needs to be patched.
• The CMOS battery is loose or failing.
• The motherboard clocking crystal is damaged.

An employee reports that each time a workstation is started it locks up after about 5 minutes of use. What is the most likely cause of the problem?

• The hard disk is failing.
• The RAM is malfunctioning.
• The CPU experiences overheating.
• The power supply fails to provide adequate voltage and current.

An employee reports that the antivirus software cannot obtain updates. The support technician notices that the license for the software has expired. The technician adds a new license to the software and completes the update service. What should the technician do next?

• Record the new license number in the log.
• Download advanced antivirus software from another vendor.
• Run a full virus scan on the computer.
• Review the Event Viewer for the date and time that the last software update was performed.

After a new PCIe video card is added, the computer seems to boot successfully but it will not display any video. The computer was working properly before the new video card was installed. What is the most likely cause of the problem?

• The monitor cable is faulty.
• The saved CMOS settings are set to use the built-in video adapter.
• The PC does not have enough RAM to support the new video card.
• The new video card is not compatible with the CPU in the PC.

What is the preferred method to remove a disc from an optical drive that fails to eject the disc?

• Insert a pin into the small hole on the front of the drive.
• Remove the top of the drive enclosure.
• Send the drive to an authorized repair depot.
• Use a small screwdriver and pry the drive door open.

During the process of testing a theory of several probable causes to a problem, which should be tested first?

• the easiest and most obvious
• those chosen by random selection
• the most complex and difficult to diagnose
• those the customer believes to be the most important

During the troubleshooting of a PC that will not boot, it is suspected that the problem is with the RAM modules. The RAM modules are removed and put into another PC, which successfully powers on. The RAM modules are then put back into the original PC and it now successfully powers on as well. What was the most likely cause of the problem?

• The RAM modules were not seated firmly.
• The RAM modules were inserted backwards into the DIMM slots.
• The RAM modules did not match the PC specs.
• The RAM modules have bad blocks.