NETWORKING RELATED QUESTIONS AND ANSWERS III

188: Which is both a 16 and 32 bit bus?
A: EISA

189: The DC voltage on most circuit boards is?
A: +5 volts

190: What type of controller will support both internal and external CD-ROMs?
A: SCSI

192: How many pixels does a standard VGA display have in its native graphics mode?
A: 640x480 pixels

193: When the files on your hard drive are not stored in consecutive clusters, it is said to be?
A: Fragmented

194: What command would you type to fine out how much and what type of memory you have available?
A: MEM

195: You just bought a new video card. What is an important question to answer before installing ?
A: What are the available IRQ's

196: How long should you wait for the CRT to discharge before opening the case?
A: 60 minutes or more.

197: What can be used to ensure your power supply is not interrupted?
A: Uninterrupted Power Supply (UPS)

198: When is the risk of ESD the greatest?
A: During low humidity (Dry) and cold.temperatures.

199: A user calls and says his PC was working fine yesterday but he turned on this morning and he is getting an error that reads "Invalid System Disk". What could be the problem?
A: Floppy in drive A:

200: What would it mean if you did not hear any beeps when you boot your computer?
A: Bad or disconnected speaker.

201: What is the cheapest way to access the Internet?
A: Dial Up access

202: If a monitor only displays blue or green, or combinations of blue and green, what is the problem?
A: The RED electron gun is broken.

203: When you power up the monitor, it displays a “301” error code, what is the problem?
A: Keyboard

204: What type of output device should never be hooked up to a switch box?
A: Laser printer

205: Does it matter which lead of a voltmeter is connected to an AC circuit?
A: No

206: Does shadowing normally occur in conventional or extended memory?
A: Extended

207: What does Full Duplex mean?
A: Simultaneous Transmit and Receive

208: Do PCI cards need IRQs?
A: No. PCI cards don't use IRQs, they use "Interrupt Levels", numbered A,B,C and D.

209: If the output from the power supply drops from +12 Volts to +11.3 Volts, what should you do?
A: Nothing, a slight power drop or increase is acceptable.

210: The resolution of a monitor will always ultimately be determined by what?
A: The number of triads

211: What is the correct handshake signals used in serial data transfers?
A: Data Terminal Ready and Data Set Ready (DTR/DSR)

212: How many DMA channels are on a 16-bit ISA system?
A: 8

213: What is the maximum length for a narrow, slow, SCSI-2 chain?
A: 20 ft.

214: What is the first step to be performed after installing a new blank hard drive?
A: Partition the hard drive.

215: What product must you use to clean the rubber rollers on a printer?
A: Denatured Alcohol

216: What type of connection ports do most modems have?
A: RJ-11

217: In the AT type PCs, the system BIOS is most commonly located where in memory?
A: The 64K just below address FFFFF.

218: In Inkjet technology, the droplets of ink are deflected towards the paper by what?
A: Electrically charged plates

219: External modems are usually connected to which type of ports?
A: Serial

220: What does EMI stand for?
A: Electromagnetic Interference

221: If a laser printer keeps grabbing more than one sheet of paper at a time, the problem is most likely?
A: Paper has picked up too much moisture.

222: What are the 3 types of modem transmission protocols?
A: Xmodem
Ymodem
Zmodem

223: If the characters printed on a dot matrix appear chopped off at the top, what is the likely problem?
A: Misaligned printhead

224: How many 72 pin SIMMs are needed to make a bank on a Pentium PC?
A: 2

225: What is the most popular type of modem protocol?
A: Zmodem

226: Will you ever find ISA slots on a laptop PC?
A: No

227: What does the term MODEM stand for?
A: Modulator Demodulator

228: What is the fasted type of expansion bus?
A: PCI

229: Most Pentium CPUs run on what voltage?
A: 3.3 Volts

230: You have just replaced the toner cartridge in a laser printer. The first few sheets come out smudged. What should you do to fix this?
A: Run a few blank sheets trough until smudging stops.

231: What 2 types of ports can a mouse use?
A: PS/2
Serial

232: How many logical drives can an EIDE hard disk be divided into?
A: 24

233: A laser printer generates a totally black sheet. What could cause this?
A: No power to the primary corona

234: The distance between two adjacent phosphors of the same color on the CRT screen is known as?
A: Dot pitch

235: How often should you clean a CD-ROM laser?
A: Never touch the laser in a CD-ROM

236: The decimal equivalent of the binary number 0111 is?
A: 7

237: When you send print to your laser printer, the sheets come out blank. What is most likely the cause?
A: No power to the transfer corona.

238: When testing household current, you should read how many volts between the neutral and the ground?
A: 0

239: What IRQ does LPT2 use?
A: 5

240: You boot a computer and get the message “No ROM basic, system halted”. What is the problem?
A: There is no active partition

241: A bi-directional parallel cable is also known by what specification?
A: IEEE 1284

242: If your monitor only shows a single line, what is probably the problem?
A: Bad yoke coil

243: When cleaning the keys on a keyboard, you should use?
A: All- purpose cleaner.

244: An error code 20 on an HP laser printer signifies what?
A: Memory overflow

245: Improper installation of the floppy drive ribbon cable can cause permanent damage to your PC?
A: False

246: What are the P8 and P9 connectors?
A: They connect the power supply to the motherboard.

247: Transferring multiple bits of data over several conductors at one time is what type of communication?
A: Parallel

248: When a power cable and a printer cable get too close together, what might occur?
A: EMI

249: Should you plug a laser printer into a UPS?
A: No

250: What is the primary advantage of parallel communication over serial?
A: Speed

251: Every VGA video card has what?
A: RAM

252: Intermittent lockups and reboots are a sign of what?
A: Bad power supply

253: Standard US household current is?
A: 120 Volts AC, 60 Hz

254: What is the I/O address is used for COM3?
A: 3E8

255: What is are the 3 types of networks?
A: LAN
WAN
MAN

256: The base, emitter, and collector are all parts of what?
A: Transistor

257: What type of electrical device allows current to only flow in one direction?
A: Diode

258: What type of processor has built in math coprocessor and cache?
A: Pentium

259: How often does Dynamic RAM (DRAM) need to be refreshed?
A: Every 16 milliseconds

260: What is the electrical symbol for a resistor?
A: A zig zag line /\/\/\/\

261: In an IDE hard drive the minimum storage unit is called a?
A: Sector

262: What must be installed at the end of a SCSI chain?
A: Terminating resistor

263: The acronym HDI stands for?
A: Head to disk interference

264: With a dot matrix printer, light then dark print is most commonly caused by?
A: Erratic ribbon advancement

265: Your client gets garbage characters when trying to print a document. Which of the questions listed below could you ask? (choose all that apply)
A: Occurrence (how often)?
Do you have a sample?
What applications are being used?
Where is the printer located?

266: Which of the following should be considered when storing laser printer paper? (choose all that apply)
A: Location
Temperature
Humidity

267: Which bus type was introduced by IBM and was not accepted by the industry?
A: MCA

268: What device takes advantage of EMF spooling?
A: Printer

269: What device can you use to prevent power surges to your computer?
A: Surge Suppressor

270: What is the purpose of the Modem?
A: Turns digital signals into analog signals and vice versa.

271: The major difference between ESD and EMI is?
A: EMI is recoverable, ESD is not.

272: You are testing a household electrical outlet. If you test the ground & neutral wires, you should get what reading?
A: 0

273: Unused memory in the reserved area is called?
A: UMB (Upper Memory Blocks)

274: The 384K of memory region between 640K and 1MB is called?
A: Upper or Reserved Memory

275: Which of the following is not internet related?
A: X.400

276: What is the purpose of a Thermal Fuse?
A: In case the low voltage power supply overheats.

277: You get a call from a user complaining that his computer consistently locks up after only 5 minutes of operation. What is the possible cause?
A: Faulty power supply

278: What types of Cache memory are available on a Pentium Pro CPU?
A: L1 & L2

279: The EIDE specification allows a maximum of how many hard drives?
A: 4

280: The most common size of floppy drive in use today is?
A: 3 ½ “, 1.44 MB

281: Floppy drive letters are determined by?
A: Position of the drive on the floppy cable.

282: The ROM chip located on the motherboard stores?
A: System BIOS

283: How many bytes are stored in a hard drive sector?
A: 512

284: What is a common connector for a serial port?
A: DB9

285: Which device can protect against power sags?
A: UPS