Practice Test Question: Video Monitor

clipped from www.proprofs.com 25. Your monitor screen is a light green color, what could be the problem?   A pin is bent on the video cable connector The cable has been attached upside down The cable is reversed The cable is missing - Explanation A light green color on your monitor is usually a symptom of a bent pin on the 15 pin video connector.

Practice Test Question: POST Error Code 2xx

clipped from www.proprofs.com 24. A 2xx POST error code indicates a problem with:   RAM or ROM Hard Drive System Board Second Adapter Card - Explanation A post error code beginning with 2 (2xx) relates to memory issues on the motherboard.

Practice Test Question: Download problems and NIC card

clipped from www.proprofs.com 21. You are unable to download the desired software from the Internet and suspect your network connection. Which of the following will help you to ascertain the problem?   Check the power cord. Check the NIC card for link light activity. Replace the network cable with a new one. Reboot the system. - Explanation The link and activity light on a NIC card can be visually examined to determine proper network connectivity. The light usually flashes to indicate network data being sent and received from the card.

Practice Test Question: POST Error Code 17xx

clipped from www.proprofs.com 20. A 17xx POST error code indicates a problem with:   CMOS ROM BIOS DMA Controller Hard Drive or Controller - Explanation Error codes beginning with 17 (17xx) relates to issues of the HDC.

Practice Test Question: Parity Errors

clipped from www.proprofs.com 19. A parity error usually indicates a problem with which of the following?   Memory Hard Drive Hard Drive Controller I/O Controller - Explanation The BIOS uses a parity check to test the RAM modules.

Practice Test Question: Damage from Power Outage

clipped from www.proprofs.com 18. What is the most likely consequence of a sudden power outage?   Lost data RAM damage Monitor damage Modem damage Electrical shock Adapter card damage - Explanation Since a sudden power outage does not give time enough for the OS to close the open sessions on that computer, you might end up losing all the unsaved data from those open sessions. The hardware is likely to go bad due to power surge rather than outage.

Practice Test Question: Magnetic Media

clipped from www.proprofs.com 17. Which of the following is a reason to avoid putting magnetic tapes on top of a speaker?   RFI EMI EXE FYI DWI ESD - Explanation Magnetic media is susceptible to corruption from magnetic fields (EMI), so don't store your floppies on top of your television or Hi-Fi, these equipments radiate strong EMI.

Practice Test Question: Video Monitor

clipped from www.proprofs.com 16. You switch on your PC and get no display. You are sure the monitor is ok. Which order would you follow for troubleshooting this problem?   Replace the video card, replace the monitor, replace the power supply, replace the system board, try a different monitor. Check that PC and monitor are plugged in, check that monitor brightness is turned up, check that PC fan is running. Check PC supply voltages, replace video card, replace CPU. Check that everything is plugged in, replace system board. - Explanation Check that PC and monitor are plugged in, check that monitor brightness is turned up, check that PC fan is running, remove all option cards.

Practice Test Question: POST error code 6xx

clipped from www.proprofs.com 15. A POST error code of 6xx indicates a problem with the:   Floppy Drive Hard Drive Memory Mother Board - Explanation Floppy drive issues during a boot up are highlighted with error codes 6xx (beginning with 6).

Practice Test Question: Cleaning Contacts With Pencil Erasers

clipped from www.proprofs.com 13. When using a common pencil eraser, you should be careful to rub __________ the outer-edge of the board or connector to prevent damage to the contacts.   Radial to Away from Parallel to Toward - Explanation If you use the emery cloth or rubber eraser to clean your contacts, always rub toward the outer edge of the board or connector to prevent damage to the contacts.

Practice Test Question: POST error codes

clipped from www.proprofs.com 12. A 4xx, 5xx, or 24xx POST error code indicates a problem with:   Hard Drive IRQ Controller Video Adapter Keyboard - Explanation Video Adapter is the correct answer

Practice Test Question: Silicon Lubricant

clipped from www.proprofs.com 11. Silicon lubricant is used with which of the following?   Mouse Keyboard Read/Write Heads Rollers in Printer - Explanation Silicon lubricant is used on printer rollers when they begin to squeak.

(Trick) Practice Test Question: No beep on boot

clipped from www.proprofs.com 10. You boot your PC and don't hear the usual single beep. What should you check first?   System Board Microprocessor Power Supply Speaker - Explanation It could be that your system is completely dead, but the question statement does not state any other serious hardware problem that is detaining the boot process. Hence, we assume it is a speaker problem.

Practice Test QuestionL POST code 3XX

clipped from www.proprofs.com 9. A 3xx POST error code indicates a problem with:   Mouse Keyboard Floppy Drive Video Adapter - Explanation An error code beginning with 3xx relates to keyboard issues.

Practice Test Question: HDD does not respond upon power on

clipped from www.proprofs.com 8. Your HDD does not respond upon powering ON your computer. What is the most likely problem?:   Bad data cable Incorrect jumper setting on drive Loose Molex connector Virus A floppy has been left in the FDD A brownout - Explanation Loose Molex connector. Either the D-shaped power connector is loosely connected or not connected at all.

Practice Test Question: System Keeps Rebooting Automatically

clipped from www.proprofs.com 7. You have just purchased a computer running Win 2000 with the following configuration. Every time the system is powered ON it keeps rebooting automatically. What could the problem be? ATX Main board Two Pentium 4 - 1 GHz, 200W Power Supply   PSU CD ROM HDD CPU CD Burner Main board - Explanation The mentioned hardware configuration will definitely require an power supply with better output than 200 watts.

Practice Test Question: BIOS

clipped from www.proprofs.com 6. You have just configured two new SCSI drives on a system board meant for ATA drives. The drives being recognized after boot up are ATA drives. What is the problem?   The BIOS is not configured to boot from the SCSI drives. ot boot from a SCSI drive. The Operating System must be updated. A BIOS firmware update must be applied. - Explanation The BIOS is not configured to boot from the SCSI drives. Enter the BIOS and set the SCSI device to be the boot device.

Practice Test Question: NIC card

clipped from www.proprofs.com 4. Your client's computer refuses to connect to the network. You observe the NIC light is not ON and then use a different cable. What should you do next?   Attempt to log in to the server after again observing the NIC light status. Replace NIC. Replace NIC driver. Consider it fixed. - Explanation After changing the patch cable, the light status of you NIC should have changed. You must also log in to server to ensure logical connectivity along with the physical connectivity.

Practice Test Question: Power Supplu

clipped from www.proprofs.com 3. User Maria calls you to complain that her system is totally dead today. It was working fine when she left the last evening. Which of the following must you check first?   Test the power supply Replace the CMOS battery Check the AC outlet Reseat the hard drive controller cable - Explanation The ideal way to troubleshoot this issue is to begin troubleshooting from the AC power outlet and progress towards the computer's inlet for AC power. Also check the intermediate connectivity, which is the power cord.

Practice Test QuestionL POST code 1XX

clipped from www.proprofs.com 2. A 1xx POST error code indicates a problem with the:   Video RAM or ROM Hard Drive System Board - Explanation The code beginning with 1XX relates to the system board.

Practice Test Question: SCSI cable lengths

clipped from www.proprofs.com 1. You replace a customer's HDD with a Single Ended SCSI system using approximately eight meters of cables in the SCSI system. After this installation the peripherals have stopped functioning. What do you suspect?   Single Ended SCSI systems use an unbalanced electrical signal. Single Ended SCSI systems don't work if the total cable length exceeds 6 meters. An improper cable insertion is the problem. The cable length is less than the minimum allowed cable length. - Explanation The most probable reasons is that the total cable length is eight meters, which exceeds the allowed length. Single-ended SCSI systems have a cable distance limitation of 6m.

AT and ATX Power Supply Wires: BOWRBY

From The ProProfs Forums

clipped from www.proprofs.com Here's a way to remember voltages from AT / ATX power supply units. Remember the word BOWRBY (bow-re-bii), its an acronym for the coloured wires coming from the PSU. Black _ 0v Orange _ +3.3v White _ -5v Red _ +5v Blue _ -12v Yellow _ +12v and just the few odd ones, Grey _ Power_good (+5v) Purple _ +5v Standby Green _ PS_On (Power Supply on signal) AT form factor uses two 6-pin connectors typically identified as P8 and P9, but may be identified as P1 and P2. ATX uses one 20-pin connector.