A+ Pracite Questions 475f10

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.

YES

An improper cable insertion is the problem. The cable length is less than the minimum allowed cable length. + Explanation

2.

A 1xx POST error code indicates a problem with the:

Video NO

RAM or ROM Hard Drive

NO

System Board

YES

- Explanation The code beginning with 1XX relates to the system board.

3.

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

NO

Replace the CMOS battery Check the AC outlet

YES

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.

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 to the server after again observing the NIC light status.

YES

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 to server to ensure logical connectivity along with the physical connectivity.

5.

Sally is having a problem with the network. She cannot log on from her computer although the computer is fine. You log on from her workstation using her name and . Everything works fine. What is most likely the problem?

Server is down. Defect patch cable used at her computer. She does not have sufficient rights. She is entering the name or incorrectly.

YES

- Explanation Since you have established that everything is working fine when you logged in, it is obvious that Sally was using the wrong credentials.

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.

YES

You cannot 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.

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

YES

CD ROM HDD U CD Burner Main board - Explanation The mentioned hardware configuration will definitely require an power supply with better output than 200 watts.

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

YES

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

9.

A 3xx POST error code indicates a problem with:

Mouse Keyboard

YES

Floppy Drive Video Adapter - Explanation An error code beginning with 3xx relates to keyboard issues.

10.

You boot your PC and don't hear the usual single beep. What should you check first?

System Board Microprocessor Power Supply YES

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

11.

Silicon lubricant is used with which of the following?

Mouse Keyboard Read/Write Heads Rollers in Printer

YES

- Explanation Silicon lubricant is used on printer rollers when they begin to squeak.

12.

A 4xx, 5xx, or 24xx POST error code indicates a problem with:

Hard Drive IRQ Controller Video Adapter

YES

Keyboard - Explanation Video Adapter is the correct answer

13.

When using a common pencil eraser, you should be careful to rub __________ the outeredge of the board or connector to prevent damage to the s.

Radial to Away from Parallel to Toward

YES

- Explanation If you use the emery cloth or rubber eraser to clean your s, always rub toward the outer edge of the board or connector to prevent damage to the s.

14.

Your server room has become warm all of a sudden. Which of the following must you check?

Power supply fans Air conditioning

YES

UPS U fan - Explanation The only reason for the server room to be warm is that the Air conditioning would have stopped. This can be a serious problem as the server configuration machines do require AC to function without any interruption.

15.

A POST error code of 6xx indicates a problem with the:

Floppy Drive

yes

Hard Drive Memory Mother Board - Explanation Floppy drive issues during a boot up are highlighted with error codes 6xx (beginning with 6).

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.

YES

Check PC supply voltages, replace video card, replace U. 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.

17.

Which of the following is a reason to avoid putting magnetic tapes on top of a speaker?

RFI EMI

YES

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

18.

What is the most likely consequence of a sudden power outage?

Lost data

YES

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.

19.

A parity error usually indicates a problem with which of the following?

Memory

YES

Hard Drive Hard Drive Controller I/O Controller - Explanation The BIOS uses a parity check to test the RAM modules.

20.

A 17xx POST error code indicates a problem with:

CMOS

ROM BIOS DMA Controller Hard Drive or Controller

YES

- Explanation Error codes beginning with 17 (17xx) relates to issues of the HDC.