MCQOPTIONS
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MCQOPTIONS
This section includes 290 Mcqs, each offering curated multiple-choice questions to sharpen your Computer Science knowledge and support exam preparation. Choose a topic below to get started.
| 151. |
Which of the following is a type of preventative maintenance used on a hard drive? |
| A. | Disk check diagnostics |
| B. | Head alignment diagnostics |
| C. | Initializing |
| D. | Uninstalling programs |
| Answer» B. Head alignment diagnostics | |
| 152. |
What problem can occur if a printer cable is to close to a power cable? |
| A. | ESD Electrostatic Discharge |
| B. | EMI Electromagnetic Interference |
| C. | parity error |
| D. | no affect |
| Answer» C. parity error | |
| 153. |
To test for AC ripple on a PC power supply, you would set the volt/ohm meter for: |
| A. | DC voltage scale |
| B. | AC voltage |
| C. | OHM scale |
| D. | Farad scale |
| Answer» C. OHM scale | |
| 154. |
All Operating Systems get their total memory initialized from? |
| A. | CPU |
| B. | BIOS |
| C. | ROM |
| D. | RAM |
| Answer» C. ROM | |
| 155. |
You are testing the resistance in Ohms of a fuse on a 15K amp system. If the fuse is good, the meter should read? |
| A. | 0 |
| B. | 0.2 |
| C. | 5 |
| D. | 2 |
| Answer» B. 0.2 | |
| 156. |
Resistance is measured in ohm. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 157. |
After displaying the directory of a floppy disk, a different floppy is inserted into the drive. The contents of the original floppy continue 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: |
| A. | System's floppy drive device driver |
| B. | Original IDE controller |
| C. | Floppy drive ribbon cable |
| D. | System's power supply |
| Answer» D. System's power supply | |
| 158. |
In a computer with an eide adapter, where should you connect an ATA CD-ROM drive? |
| A. | on the floppy bus |
| B. | on the primary IDE |
| C. | on the secondary IDE |
| D. | on the SCSI bus |
| Answer» D. on the SCSI bus | |
| 159. |
Suppose that the power lamp in on, but the printer will not print. What can you do to correct the problem? |
| A. | Make sure the printer is on line |
| B. | Replace the AC line fuse |
| C. | Turn the printer on and off |
| D. | Replace the ribbon |
| Answer» B. Replace the AC line fuse | |
| 160. |
COM1 is typically represented by which of the following? |
| A. | 15 pin port |
| B. | 9 pin male port |
| C. | 9 pin female port |
| D. | 25 pin male port |
| Answer» C. 9 pin female port | |
| 161. |
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 |
| B. | The keyboard controller chip |
| C. | The keyboard connector |
| D. | The motherboard |
| Answer» B. The keyboard controller chip | |
| 162. |
Dust in a computer actually increases the size of the magnetic fields inside it. This is not good, so you must occasionaiy dust, I trust. What's the best way to do this? |
| A. | reverse vacuum |
| B. | any small vacuum device |
| C. | blow real hard on the system board |
| D. | use a lint-free cloth and wipe gently |
| Answer» E. | |
| 163. |
Your modem does not respond when you try to dial out. You try another modem on another computer and get the same result. What is the most likely problem? |
| A. | defective modem |
| B. | defective computer |
| C. | software bug |
| D. | bad phone line |
| Answer» E. | |
| 164. |
With a dot matrix printer, light then dark print is most commonly caused by: |
| A. | Erratic paper advancement |
| B. | Erratic ribbon advancement |
| C. | Misaligned print head |
| D. | Overheating print head |
| Answer» C. Misaligned print head | |
| 165. |
What resistance in ohms should be displayed when testing a speaker in a computer? |
| A. | Q Ohms |
| B. | 16 Ohms |
| C. | -200 Ohms |
| D. | Unlimited Ohms |
| Answer» C. -200 Ohms | |
| 166. |
How many DMA channels are in an AT-machine? |
| A. | 3 |
| B. | 4 |
| C. | 7 |
| D. | 8 |
| Answer» C. 7 | |
| 167. |
The standard VGA display has _____ pixels in its native graphics mode? |
| A. | 648 x 320 |
| B. | 640 x 480 |
| C. | 680 x 440 |
| D. | 1024 x 786 |
| Answer» C. 680 x 440 | |
| 168. |
Why does a successfully mapped network drive disappear every time you boot the computer? |
| A. | The computer you are connected to has moved |
| B. | You didn't click reconnect on log on |
| C. | The map statement is not in the autoexec.bat file |
| D. | The last drive was not set correctly |
| Answer» D. The last drive was not set correctly | |
| 169. |
In the Binary numbering system, a (1) represents a jumper being shorted and a (0) represents a jumper being open. On a three-bit jumper block on a SCSI drive, how would an ID of logical 3 be set? |
| A. | 100 |
| B. | 10 |
| C. | 11 |
| D. | . 101 |
| Answer» D. . 101 | |
| 170. |
A numeric error code check: A 17xx indicates a problem with: |
| A. | CMOS |
| B. | ROM BIOS |
| C. | DMA controller |
| D. | hard drive or controller |
| Answer» E. | |
| 171. |
Modems use transmission. |
| A. | synchronous |
| B. | asynchronous |
| C. | timed interval |
| D. | ata |
| Answer» C. timed interval | |
| 172. |
How may standard levels of interrupts are provided on the 8-bit ISA bus (XT-class computer)? |
| A. | 4 |
| B. | 8 |
| C. | 12 |
| D. | 16 |
| Answer» C. 12 | |
| 173. |
To prevent toner from sticking to a laser printer's heat rollers, apply which of the following: |
| A. | Alcohol |
| B. | Oil |
| C. | Ammonia |
| D. | Beer or Jack Daniels |
| Answer» C. Ammonia | |
| 174. |
On the 16-bit ISA bus, IRQ2 is elevated to which higher level Interrupt? |
| A. | 9 |
| B. | 11 |
| C. | 13 |
| D. | 15 |
| Answer» B. 11 | |
| 175. |
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 |
| Answer» E. | |
| 176. |
When connecting two internal SCSI hard disks to a computer, where do you connect the second hard drive? |
| A. | Any open SCSI port on the computer |
| B. | A Serial port on the first host adapter |
| C. | An open parallel port on the computer |
| D. | An open SCSI port on the first hard drive |
| Answer» B. A Serial port on the first host adapter | |
| 177. |
You have a system that periodically locks up. You have ruled out software, and now suspect that it is hardware. What should you do first that could help you narrow it down to the component at fault? |
| A. | rotate the RAM |
| B. | replace the RAM |
| C. | replace the level 2 cache SIMM |
| D. | disable the CPU cache in CMOS |
| Answer» E. | |
| 178. |
Current is measured in units of: |
| A. | volts |
| B. | amps |
| C. | ohms |
| D. | farads |
| Answer» C. ohms | |
| 179. |
ISDN stands for: |
| A. | internal select data nulls |
| B. | integrated services digital network |
| C. | interval set down next |
| D. | interior sector direct none |
| Answer» C. interval set down next | |
| 180. |
What is the i/o address for com3? |
| A. | 300000000 |
| B. | 345 |
| C. | ff8 |
| D. | 500000000 |
| Answer» B. 345 | |
| 181. |
A hard disk is divided into tracks which are further subdivided into: |
| A. | clusters |
| B. | sectors |
| C. | vectors |
| D. | heads |
| Answer» C. vectors | |
| 182. |
In Inkjet technology the droplets of ink are deflected by? |
| A. | multi directional nozzles |
| B. | electronically charged plates |
| C. | high pressure plates |
| D. | electro static absorbtion |
| Answer» B. electronically charged plates | |
| 183. |
What are the most likely conditions for ESD? |
| A. | Cold and wet |
| B. | Cold and dry |
| C. | Hot and wet |
| D. | Hot and dry |
| Answer» C. Hot and wet | |
| 184. |
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 |
| Answer» C. Call the vendor | |
| 185. |
On a dot matrix printer, you should never lubricate which part? |
| A. | carriage rails |
| B. | printhead pins |
| C. | paper advance bearings |
| D. | carriage bearings |
| Answer» C. paper advance bearings | |
| 186. |
The terms "red book", "yellow book", and "orange book" refer to: |
| A. | SCSI |
| B. | ide |
| C. | floppy drive technology |
| D. | CD-ROM standards |
| Answer» E. | |
| 187. |
What is the recommended way to fix the registry description for the printer driver |
| A. | Delete the spool file |
| B. | Run regedit.exe and remove any reference to the printers |
| C. | Run sysedit.exe and remove any reference to the printers |
| D. | Remove the printer driver and re¬install it |
| Answer» E. | |
| 188. |
You get a CMOS checksum error during bootup. What is most likely the cause? |
| A. | power supply is bad |
| B. | BIOS needs updating |
| C. | CMOS battery is nearing end of life |
| D. | hard drive types are incorrectly defined |
| Answer» D. hard drive types are incorrectly defined | |
| 189. |
If a computer's BIOS allows it, you can boot from a CD-ROM. |
| A. | 1 |
| B. | |
| Answer» B. | |
| 190. |
You have a 15 pin female connector with the pins in two rows. What could you connect with this? |
| A. | Serial device |
| B. | Parallel device |
| C. | MIDI device |
| D. | Video device |
| Answer» E. | |
| 191. |
ESD potential decreases with the use of: |
| A. | De-ionizing fans |
| B. | A wrist strap |
| C. | Rubber gloves with matching cap |
| D. | A static meter |
| Answer» C. Rubber gloves with matching cap | |
| 192. |
Which monitor would provide the highest level of performance? |
| A. | VGA |
| B. | XGA |
| C. | CGA |
| D. | SVGA |
| Answer» E. | |
| 193. |
A brownout is defined as: |
| A. | a slightly elevated voltage lasting from seconds to minutes or more |
| B. | a slightly decreased voltage lasting from seconds to minutes or more |
| C. | complete power out lasting a few minutes |
| D. | alternating power out, power on lasting a few minutes |
| Answer» C. complete power out lasting a few minutes | |
| 194. |
What is the size of the reserved memory area? |
| A. | 64 kb |
| B. | 384 kb |
| C. | 640 kb |
| D. | 1024 kb |
| Answer» C. 640 kb | |
| 195. |
The ATAPI compliance is stands for? |
| A. | CDROM |
| B. | Bus mastering |
| C. | Mass storage device |
| D. | All of the above |
| Answer» D. All of the above | |
| 196. |
Which is NOT typically a Field Replaceable Unit? |
| A. | System ROM |
| B. | Power supply |
| C. | System chassis |
| D. | Video controller |
| Answer» D. Video controller | |
| 197. |
A wrist grounding strap contains which of the following: |
| A. | Surge protector |
| B. | Capacitor |
| C. | Voltmeter |
| D. | Resistor |
| Answer» E. | |
| 198. |
In laser printer technology, what happens during the conditioning stage? |
| A. | The corona wire places a uniform positive charge on the paper |
| B. | A uniform negative charge is placed on the photosensitive drum |
| C. | A uniform negative charge is placed on the toner |
| D. | All of the above |
| Answer» C. A uniform negative charge is placed on the toner | |
| 199. |
Suppose that you have a 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 |
| B. | Replace all of the indicated FRUs at once and return the machine to the customer if the problem is resolved |
| C. | Follow the same procedure as in ays replace the system board first if it is on the list of possible FRUs If multiple FRUs are indicated, then software is the most likely source of the problem |
| D. | None of the above |
| Answer» B. Replace all of the indicated FRUs at once and return the machine to the customer if the problem is resolved | |
| 200. |
What configuration should a Volt-Ohm meter he set to when testing a fuse? |
| A. | DC volts |
| B. | AC volts |
| C. | Amperage |
| D. | Ohms |
| Answer» E. | |