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IT-Essentials v6.0 Chapter 4 Practice Quiz Answers
1. What is a primary benefit of preventive maintenance on a PC?
It enhances the troubleshooting processes.
It simplifies PC use for the end user.
It extends the life of the components.*
It assists the user in software development.
2. Which task should be performed on a hard drive as part of a preventive maintenance plan?
Ensure cables are firmly connected.*
Ensure the disk spins freely.
Blow out the inside of the drive with compressed air to remove dust.
Clean the read and write heads with a cotton swab.
3. After a problem is identified, what is the next step for the troubleshooter?
Implement a solution.
Verify the solution.
Document the findings.
Determine the exact cause.
Establish a theory of probable causes.*
4. Which procedure is recommended when cleaning inside a computer?
Hold the CPU fan to prevent it from spinning and blow it with compressed air.*
Remove the CPU before cleaning.
Invert the can of compressed air while spraying.
Clean the hard drive heads with a cotton swab.
5. A user has just upgraded the CPU in a PC. After powering on, the computer boots but does not display the correct information about the new CPU while booting. What is the most likely cause of the problem?
The operating system needs to be upgraded.
The CPU needs to be overclocked for it to show up correctly.
The motherboard has incorrect BIOS settings.*
More RAM needs to be added to support the faster CPU.
6. An employee mentions that opening a large document file is taking longer than usual. The desktop support technician suspects that there might be a fault in the hard disk. What should the technician do next?
Replace the hard disk with a new one to pinpoint the exact problem.
Perform the disk cleanup procedure.
Contact a data recovery company for service.
Back up the user data from the workstation.*
7. What is the best way to determine if a CPU fan is spinning properly?
Listen for the sound of the fan spinning when the power is on.
Spray compressed air on the fan to make the blades spin.
Spin the blades of the fan quickly with a finger.
Visually inspect the fan when the power is on to ensure it is spinning.*
8. Which cleaning tool should be used to remove dust from components inside a computer case?
9. What is a symptom of a failing power supply?
The display has only a blinking cursor.
The computer displays a POST error code.
The power cord will not attach properly to either the power supply or wall outlet or both.
The computer sometimes does not turn on.*
10. A user has noticed that the hard drive LED on the front of the computer has stopped working. However, the computer seems to be functioning normally. What is the most likely cause of the problem?
The motherboard BIOS needs to be updated.
The power supply is not providing enough voltage to the motherboard.
The hard drive data cable is malfunctioning.
The hard drive LED cable has come loose from the motherboard.*
11. An employee reports that the output of a workstation display is distorted. The technician checks the manufacturer website and downloads the latest version of the video driver. After the video driver is installed, what should the technician do next?
Move the display card to another slot to see if the video performs better.
Open a video editing application to verify the video performance.*
Schedule the next system checkup with the employee.
Log the previous and current version numbers of the video driver.
12. During what step in the troubleshooting process does the technician demonstrate to the customer how the solution corrected the problem?
Verify full system functionality.
Establish a plan of action to resolve the problem.
Establish a theory of probable cause.
Document the findings, actions, and outcomes.*
13. A technician helps a customer to add a new 2 GB RAM module to a workstation that currently has one 2 GB RAM module installed. Three empty RAM slots are available. However, only 2 GB of RAM is reported by the BIOS after the new RAM module is added. What are two procedures that the technician should perform to pinpoint or solve the problem? (Choose two.)
Make sure the new RAM module is seated properly.*
Upgrade the operating system to Windows 7 to support more RAM.
Test the new RAM module on another workstation.*
Replace with two 1 GB RAM modules.
Check the manufacturer website for a BIOS patch.
14. In which step of the troubleshooting process would a technician have to do more research on the Internet or within the computer manual in order to solve a problem?
Document findings, actions, and outcomes.
Test the theory to determine the cause.
Verify full system functionality and, if applicable, implement preventive measures.
Establish a plan of action to resolve the problem and implement the solution.*
Identify the problem.
15. What component is most suspect if a burning electronics smell is evident?
16. What method should be used by a technician to determine the exact cause of a problem?
test theories of probable cause all at the same time
start with most complex and most difficult probable causes to eliminate
start with what the customer thinks is the problem
start and eliminate the quickest and easiest probable causes*