HDLC is an acronym for _______.
High-level data link control
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High-duplex line communication
Half-duplex digital link combination
Host double-level circuit
Tag: Data Communication MCQs
For Stop-and-Wait ARQ, for 10 data packets sent, _______ acknowledgments are needed.
For Stop-and-Wait ARQ, for 10 data packets sent, _______ acknowledgments are needed.
exactly 10
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less than 10
more than 10
None of the Option is Correct
ARQ stands for _______.
ARQ stands for _______.
Automatic repeat request
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Automatic repeat quantization
Automatic retransmission request
Automatic repeat request
In Go-Back-N ARQ, if frames 4, 5, and 6 are received successfully, the receiver may send an ACK _______ to the sender.
In Go-Back-N ARQ, if frames 4, 5, and 6 are received successfully, the receiver may send an ACK _______ to the sender.
7
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6
5
None of the Option is Correct
In a Go-Back-N ARQ, if the window size is 63, what is the range of sequence numbers?
In a Go-Back-N ARQ, if the window size is 63, what is the range of sequence numbers?
0 to 63
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0 to 64
1 to 63
1 to 64
A timer is set when _____________is sent.
A timer is set when _____________is sent.
Packet
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ACK
NAK
All Options are Correct
Flow control is needed to prevent
Flow control is needed to prevent
Overflow of receiver buffer
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Collision
Overflow of sender buffer
Bit errors
Regulation of the rate of transmission of data frames is known as
Regulation of the rate of transmission of data frames is known as
Data rate control
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Line discipline
Flow control
Switch control
In sliding window, if the window size is 63, what is the range of sequence numbers?
In sliding window, if the window size is 63, what is the range of sequence numbers?
0 to 63
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0 to 64
1 to 63
1 to 64
OSI model defines an open system as
OSI model defines an open system as
a set of protocols that allows any two different systems to communicate
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a set of rules for open access
a standard
None of the Option is Correct