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Which of the following Modem commands would be used to disconnect (hang up)?
| ( | A | ) | | ATZ |
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| ( | B | ) | | ATH |
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| ( | C | ) | | ATDT |
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| ( | D | ) | | AH0 |
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| ( | E | ) | | EXIT |
The Correct Answer is: B
The most chosen answer was [ A ] :: [ ATZ ]
Explanation:
ATH can be typed into a terminal input screen to disconnect or hang up from a call.
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
Which control signal on a serial cable, indicates that the data set is ready?
(this question provided by simulationexams.com)
| ( | A | ) | | DTR |
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| ( | B | ) | | DSR |
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| ( | C | ) | | RTS |
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| ( | D | ) | | CTS |
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| ( | E | ) | | None of the above |
The Correct Answer is: B
Explanation:
COM1, COM2 on a computer uses a serial cable. The pin
assignments are shown below. The computer acts as a DTE (Data Terminal Equipment)
and the Modem acts as DCE (Data Communication Equipment).
Signal--Name---------DB9 Pin
RX------Received Data--2
TX------Transmitted Data-3
DTR-----Data Terminal Ready--4
GND---- Ground--5
DSR---- Data Set Ready--6
RTS---- Request to Send--7
CTS---- Clear to send--8
Normally, a DTE device connects to a DCE device
with a straight cable. If you want to connect two DTR devices, as you would do
to hook up two computers via the serial line to exchange files, the cable itself
must have cross connections. Such a cable is called a null modem cable.
Which of the following can cause a CD-ROM from being read?
| ( | A | ) | | Scratches |
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| ( | B | ) | | Cracks |
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| ( | C | ) | | Dirt |
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| ( | D | ) | | Wetness |
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| ( | E | ) | | All of the above |
The Correct Answer is: E
Explanation:
All of the options can cause problems with the cd-rom being read. It is very important to keep your cd-roms in protective sleeves or cases when not in use.
When a continuous beep sound comes from the PC when trying to boot there is a problem with which piece of hardware?
| ( | A | ) | | BIOS code is corrupted |
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| ( | B | ) | | Speaker unplugged |
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| ( | C | ) | | Mouse not plugged in |
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| ( | D | ) | | Hard disk crash |
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| ( | E | ) | | Power supply |
The Correct Answer is: E
Explanation:
When there is a problem with the power supply, a long beep sound will be used to alert the user.
This quiz was generated by user guest255848 in nov2002.
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