Computer Maintenance & Troubleshooting of System 225 MCQ’s with Verified Answers 2024/2025.

Computer Maintenance & Troubleshooting of System 225 MCQ’s with Verified Answers 2024/2025. 1. Which of the following would be a logical first step in troubleshooting a PC? a) Check the computer CMOS b) Define the circumstances of the problem c) Call the vendor d) Define what applications are being used 2. Which would you do first when troubleshooting a faulty monitor? a) Check its connections to the computer and power source b) Use a meter to check the CRT and internal circuitry for continuity c) Power down the monitor, then turn it on again to see if that corrects the problem d) Power down the computer, then turn it on again to see if that corrects the problem 3. You have a PC with no video* Which of the following is LEAST likely to be causing the problem? a) defective RAM (bank zero) b) defective microprocessor c) crashed hard drive d) loose video card 4. When connecting a ribbon cable to a connector, how do you know which direction to plug it in? a) The red line in the cable goes to the highest pin number b) The colored line in the cable goes to pin #1 c) It does not matter d) The blue or red line in the cable goes away from the power connector 5. What is the first step in diagnosing a completely dead computer at the client site that was working the day before? a) Test the power supply b) replace the CMOS battery c) check the AC outlet d) reseat the hard drive controller cable 6. A workstation has just been installed on an Ethernet LAN, but cannot communicate with the network. What should you check first? a) reinstall the network protocols b) reinstall the network interface card driver c) verify the ip configuration on the workstation d) verify the link status on the computer's network card 7. One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as: a) The device that sends the monitor signals telling it what to display b) The area that regulates all of the system power usage c) The area where ail the of the Basic input/output routines are stored d) The area where all of the processing takes place 8. IDE cables have how many pins? a) 25 b) 50 c) 100 d) 40 9. An important first step in troubleshooting which component in a laser printer is causing a jam is to: a) note where in the paper path the paper stops b) check all voltages c) look up error codes d) turn the printer off, then on again 10. What should you replace if the brightness or contrast adjustments were malfunctioning on a laptop? a) fuse b) led display c) adjustment switch d) led display cable 11. The monitor power LED is 'on' but the monitor screen is completely dark. The least likely cause of the problem is: a) Defect in the computers video circuitry b) Disconnected video cable c) Defective monitor d) System RAM problem 12. What is your first action when windows reports that your hard drive is developing bad sectors? a) replace the hard drive b) run secclean from dos c) run defrag on the hard drive d) run scandisk with the "thorough" option 13. Which controller would support an external CD-ROM drive? a) ESDI b) ARLL c) MFM d) SCSI 14. How many DMA channels are there in an AT class PC? a) 3 b) 4 c) 7 d) 8 15. Every video card must have? a) CMOS b) RAM c) CPU d) All 16. Which best describes a fragmented hard drive: a) The platters are bad b) Data files are corrupted c) Clusters of data are damaged d) Files are not stored in consecutive clusters 17. Devices that are under control of computer and are directly connected to it are said to be a) off-line devices b) on-line devices c) IN gate device d) IF gate device.