Which of the following statement is incorrect?

CBSE Class 10 Computer Science Computer Network Quiz

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Others
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KG
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Hard
Sharin Vinnarasi
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45 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
HDLC is a standard synchronous communication protocol
RTS/CTS is the way the DTE indicates that it is ready to transmit data and the way the DCE indicates that it is ready to accept data
RTS/CTS is the way the terminal indicates ringing
Multiplexers are designed to accept data from several I/O devices and transmit a unified stream of data on one communication line
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Terminals are required for?
real-time, time sharing & message switching
real time, time-sharing & distributed message processing
real-time, batch processing & time-sharing
real time, distributed processing & manager inquiry
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which data communication method is used to transmit the data over a serial communication link?
half-duplex
full-duplex
simplex
band
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the minimum number of wires needed to send data over a serial communication link layer?
6
2
1
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following types of channels moves data relatively slowly?
none of the above
wide band channel
voice band channel
narrow band channel
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Most data communications involving telegraph lines use?
dialed service
simplex lines
narrowband channel
wideband channel
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The synchronous modems are more costly than the asynchronous modems because?
they contain clock recovery circuits
they produce large volume of data
they operate with a larger bandwidth
they transmit the data with stop and start bits
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