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Which of the following storage components / media will give the fastest data access time?
| ( | A | ) | | RAM |
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| ( | B | ) | | Serial Port |
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| ( | C | ) | | Zip Disk |
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| ( | D | ) | | Hard Disk |
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| ( | E | ) | | DVD |
The Correct Answer is: A
The most chosen answer was [ A ] :: [ RAM ]
Explanation:
Data that is stored in RAM, which stands for Random Access Memory, can be access quicker than any of the other choices.
RAM loses its contents when power is turned off.
Which of the following is the port address for serial port COM1?
(this question provided by simulationexams.com)
| ( | A | ) | | 3F0-3F7 |
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| ( | B | ) | | 2F8-2FF |
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| ( | C | ) | | 320-32F |
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| ( | D | ) | | 3F8-3FF |
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| ( | E | ) | | None of the above |
The Correct Answer is: D
Explanation:
You need to memorize the following port addresses
before attending the exam.
Port-Base
address (in hex)
COM4:
2E8-2EF
COM2:
2F8-2FF
COM3:
3E8-3EF
COM1:
3F8-3FF
LPT2 :
278-27F
LPT1 :
378-37F
Floppy Controller:
3F0-3F7
Hard Drive Controller, 16
bit, ISA: 1F0-1F8
Of the following DMA Channels which is used by the Floppy Disk Controller?
| ( | A | ) | | DMA2 |
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| ( | B | ) | | DMA4 |
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| ( | C | ) | | DMA5 |
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| ( | D | ) | | DMA6 |
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| ( | E | ) | | DMA7 |
The Correct Answer is: A
Explanation:
The most common DMA (Direct Memory Access) Channels should be known. The Floppy Disk Controller / Floppy Drive uses channel 2, (DMA2).
Which of the following commands does a modem send before transferring data over a line?
| ( | A | ) | | TRANS |
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| ( | B | ) | | ATDT |
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| ( | C | ) | | ADT |
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| ( | D | ) | | RTDT |
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| ( | E | ) | | RTS |
The Correct Answer is: E
Explanation:
A modem first sends out an RTS or Request To Send signal before transferring data.
Which of the following choices is the type of data transmission used by a modem?
| ( | A | ) | | Multisynchronous |
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| ( | B | ) | | Asynchronous |
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| ( | C | ) | | Time-delay transmission |
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| ( | D | ) | | Synchronous |
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| ( | E | ) | | Digital |
The Correct Answer is: D
Explanation:
Asynchronous transmission is used by modems to send data intermittently rather than at a steady stream. This allows both parties to transmit data at the same time.
This quiz was generated by user guest257115 in feb2002.
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