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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
The most chosen answer was [ D ] :: [ 3F8-3FF ]
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
What 3 things must be configured in the Operating System in order to use an internal modem?
| ( | A | ) | | COM, I/O, IRQ |
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| ( | B | ) | | DMA Channel, IRQ, I/O |
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| ( | C | ) | | IRQ, I/O |
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| ( | D | ) | | DMA Channel, I/O |
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| ( | E | ) | | COM, DMA Channel, IRQ |
The Correct Answer is: A
Explanation:
The 3 things that must be configured for an internal modem to work are the COM port, I/O address, and IRQ (Interupt Request).
What tool would be used to check for line voltage sags?
| ( | A | ) | | Surge protector |
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| ( | B | ) | | Feedback circuit |
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| ( | C | ) | | Terminal adapter |
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| ( | D | ) | | Polarity tester |
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| ( | E | ) | | High frequency monitor |
The Correct Answer is: D
Explanation:
A Polarity tester is useful whenever there is a need to check for the presence of low voltage in insulated conductors, without having to touch the live cable or wire.
The I/O address 2e8 is used for which COM port?
| ( | A | ) | | COM5 |
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| ( | B | ) | | COM4 |
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| ( | C | ) | | COM3 |
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| ( | D | ) | | COM2 |
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| ( | E | ) | | COM1 |
The Correct Answer is: B
Explanation:
COM4 uses I/O addresss 2e8.
What 3 things must be configured in the Operating System in order to use an internal modem?
| ( | A | ) | | COM, I/O, IRQ |
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| ( | B | ) | | DMA Channel, IRQ, I/O |
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| ( | C | ) | | IRQ, I/O |
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| ( | D | ) | | DMA Channel, I/O |
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| ( | E | ) | | COM, DMA Channel, IRQ |
The Correct Answer is: A
Explanation:
The 3 things that must be configured for an internal modem to work are the COM port, I/O address, and IRQ (Interupt Request).
This quiz was generated by user teme_amachree in april2002.
a+ certification || gmat test prep || pool game || funny joke
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