NETWORKING RELATED QUESTIONS AND ANSWERS IV

286: A customer calls and says that his monitor light is on but he has no display. His PC apparently seems to boot OK and is running. What is the first thing you would do?
A: Check the monitor adjustment controls

287: What tool would you use to properly discharge the CRT ?
A: High voltage probe

288: The video BIOS is normally located at what memory address?
A: C0000 - C7FFF

289: What would you use to clean the printhead on a dot-matrix printer ?
A: Denatured Alcohol

290: What size is the FAT for a floppy drive?
A: 12-bit

291: What is the most common way to access the CMOS Setup program?
A: Press DEL key at boot-up

292: How much memory could the 8086 processor address?
A: 1 MB

293: An old IBM PC gives you a POST error code of 1701. What does this point to?
A: Hard Drive Controller

294: Where are the Upper memory blocks located?
A: Reserved Memory

295: What is the one thing that all Viruses’ try to do?
A: Copy itself

296: When servicing a dot matrix printer, which component gets very hot ?
A: Printhead

297: What action will enable more applications to run simultaneously?
A: Add RAM

298: What DMA channel does a floppy drive use?
A: 2

299: The monitor power LED is 'on' but the monitor screen is completely dark. The least likely cause of the problem is:
A: System RAM problem

300: How may standard levels of interrupts are provided on the 8-bit ISA bus (XT-class computer)?
A: 8

301: What specifies your hard disk configuration?
A: ROM BIOS

302: After doing a low-level format, what would be the next step in configuring the hard drive in a system?
A: Partition hard disk

303: After displaying the directory of a floppy disk, a different floppy is inserted into the drive. The contents of the original floppy continues to display regardless of the director requests on the other floppies placed in the drive. You remove the drive in question and install it into your test system, and it does not exhibit the problem. You should next replace the what?
A: Floppy drive ribbon cable

304: During the boot process, a system first counts memory from where?
A: System board

305: A customer attached an external drive to his notebook computer but the computer is not recognizing it. What should be considered?
A: The cables are attached firmly?
The external drive has been pre-loaded with the appropriate software?
The external drive was attached before the computer was on?
The external drive is turned on?

306: Suppose that you have a "solid" failure, and the maintenance package identifies several possible field replaceable units (FRUs) that will resolve the problem. What should you do after turning the power off?
A: Replace the indicated parts, one at a time in the recommended sequence, until the problem is resolved; return unused FRUs to stock.

307: When considering replacement of a PC's power supply, one should be concerned about? (choose two)
A: Voltage and ampere rating
Size and shape, on/off switch placement, and wattage

308: Which components could cause a blank screen?
A: Power supply
Video card
CPU
RAM

309: A keyboard locks up intermittently even when replaced with a new keyboard. What is the LEAST likely cause of the problem?
A: A second bad keyboard

310: What questions could be asked to determine if a problem is software or hardware related? (choose all that apply)
A: Does the computer BEEP during the boot phase?
Did peripheral devices initialize, i.e. printers?
Will hardware components pass diagnostics?

311: Which of the following would be a logical first step in trouble shooting a PC?
A: Define the circumstances of the problem

312: During the normal PC boot process, what is activated first?
A: ROM BIOS

313: What is the first thing you could do to check for damage to a printer after receiving it?
A: Unbox it and examine it for physical damage.

314: When measuring AC (Alternating Current) with a multimeter, is it important to maintain the proper polarity.
A: False

315: Which FRU can be considered both an input and output device?
A: SCSI Host adapter

316: HIMEM.SYS gives you any kind of error during startup. This usually means what?
A: Bad RAM

317: Memory addresses located in the first 640K of memory are known as?
A: Conventional Memory

318: Extended memory is also called?
A: XMS

319: Which driver allows you to access HMA?
A: HIMEM.SYS

320: How many pins does a narrow SCSI-2 cable have?
A: 50

321: What are the 3 basic components of hard drive geometry?
A: Cylinders
Heads
Sectors/Track

322: When not in use, it is very important to keep 5 1/4 diskettes where?
A: In their protective sleeves

323: How many Megabytes is a 2 x 32 SIMM?
A: 8 (2 X 32 = 64/8)

324: What device uses IRQ15?
A: Secondary Hard Drive Controller

325: The TWO primary performance restraints for mass storage devices are?
A: Disk Access speed
Rate of transfer

326: If you have a device using IRQ2, then you should not have any other device using which other IRQ?
A: IRQ9

327: How large is the reserved memory area?
A: 384K

328: System software stored on non-volatile memory chips (ROM) is called?
A: Firmware

329: In a 16-bit environment, what is the most clusters a partition can have?
A: 64K

330: What is the 8042 chip used for?
A: Keyboard controller

331: If you replace the battery and the date & time clock is still malfunctioning, then you probably have what type of problem?
A: Bad motherboard

332: What is the maximum number of floppy drives you can have on any one PC?
A: 2

333: When configuring a new network interface card for installation, what would be a valid I/O address?
A: 360

334: Can you use a standard multimeter for measuring a monitors high voltage output?
A: No

335: Should a Computer technician attempt to open a power supply in order to repair it?
A: No

336: When do you need to use Line Conditioners?
A: When you have severe power problems.

337: Do Surge Suppressors offer really good protection for computer equipment?
A: No

338: If you check a good 4 amp fuse with the ohmmeter set at 20 what reading would you get?
A: 0.0

339: How much memory did the 8086 and 8088 computers have?
A: 640k

340: How much memory could a 80286 computer address?
A: 16MB

341: How would you clean a floppy drive?
A: Denatured alcohol

342: What code is entered on the FAT table to designate the last cluster a file uses?
A: FFFF

343: What code is entered on the FAT table to designate a bad cluster?
A: FFF7

344: You have a old PC with a MFM hard drive which boots occasionally for no reason. How would you fix this?
A: Back it up and then perform a low-level format.

345: What SCSI feature allows multiple devices to be chained together?
A: All devices have unique IDs.

346: Which type drives get logical letter assignment first, SCSI or IDE?
A: IDE

347: How much memory could a 386 or above computer address?
A: 4GB

348: If you have a laser printer connected to your PC, which one would you turn on first?
A: Laser printer

349: If your monitor is making a high pitched noise, what might the problem be?
A: Bad video controller

350: At what location on the hard drive will you find Master boot record?
A: Cylinder 0, Head 0, Sector 1