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What does ISDN stand for:
| ( | A | ) | | Integrated Services Digital Network |
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| ( | B | ) | | Internal Services Device Networked |
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| ( | C | ) | | Input Send Destination Network |
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| ( | D | ) | | Input System Digital Network |
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| ( | E | ) | | Internet System Domain Network |
The Correct Answer is: A
The most chosen answer was [ B ] :: [ Internal Services Device Networked ]
Explanation:
ISDN, or Integrated Services Digital Network, is used as a high speed alternative to modems.
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 choices is considered to be the brain of the PC?
| ( | A | ) | | BIOS |
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| ( | B | ) | | ROM |
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| ( | C | ) | | CPU |
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| ( | D | ) | | Hard Disk |
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| ( | E | ) | | DVD |
The Correct Answer is: C
Explanation:
The CPU or microprocessor is considered to be the brain of the computer because it processes all the instructions sent to it by the other components.
At what point is it dangerous to be wearing a wrist band grounding strap?
| ( | A | ) | | While working close to an open monitor |
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| ( | B | ) | | When removing a hard disk from a PC |
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| ( | C | ) | | While installing additional RAM |
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| ( | D | ) | | When using compressed air to clean the motherboard |
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| ( | E | ) | | When replacing a bad Power Supply |
The Correct Answer is: A
Explanation:
It is very dangerous to be wearing a wrist band ground strap around an exposed monitor because the CRT (Cathode Ray Tube) will hold an incredible charge for a short time period after power has been disconnected.
Resistors are measured in which of the following choices?
| ( | A | ) | | Ohms |
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| ( | B | ) | | Farads |
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| ( | C | ) | | Volts |
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| ( | D | ) | | Duraps |
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| ( | E | ) | | Inches |
The Correct Answer is: A
Explanation:
Ohms are the basic unit of measurement for Resistors.
This quiz was generated by user guest80349 in sept2002.
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