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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
The most chosen answer was [ A ] :: [ DTR ]
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.
Power problems coming from the wall outlet can cause which of the following problems?
| ( | A | ) | | Monitor doesn't turn on |
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| ( | B | ) | | Computer intermittently locks up |
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| ( | C | ) | | Hard disk starts to generate errors |
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| ( | D | ) | | Components don't function properly |
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| ( | E | ) | | All of the above |
The Correct Answer is: E
Explanation:
All of the choices can be causes of power problems from the wall outlet which could be caused by bad wiring or issues at the electric company.
What key combination can be used to trigger the Start button to open. Sometimes necessary when the taskbar is hidden or can't be located and their is no Start button on the keyboard.
| ( | A | ) | | Alt - Esc |
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| ( | B | ) | | Ctrl - Esc |
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| ( | C | ) | | Ctrl - Alt - Delete |
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| ( | D | ) | | F10 |
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| ( | E | ) | | Shift - Esc |
The Correct Answer is: B
Explanation:
By having the Ctrl & Esc keys pressed at the same time the Start menu will open.
Most keyboards now have a Windows logo / Start button between the Ctrl & Alt keys, which would also work.
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.
Recognizing software:
| ( | A | ) | | Windows 3.1 |
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| ( | B | ) | | Windows Explorer |
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| ( | C | ) | | DOS Command Prompt |
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| ( | D | ) | | Control Panel |
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| ( | E | ) | | BIOS Setup Utility |
The Correct Answer is: C
Explanation:
The screen capture is a window displaying the Command Prompt in DOS.
This quiz was generated by user guest912712 in jan2002.
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