Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Chapter: 36
Q1101:
If an acknowledgement does not arrive, TCP ________.
A. retransmits previous data
B. terminates the connection
C. ignores the data
D. duplicates the data
Correct Answer:
A
Chapter: 36
Q1102:
The time TCP waits before retransmitting depends on ________.
A. distance to destination
B. packet size
C. network protocol
D. speed of sender
Correct Answer:
A
Chapter: 36
Q1103:
TCP’s retransmission time depends on current ________.
A. traffic conditions
B. data size
C. security level
D. connection type
Correct Answer:
A
Chapter: 36
Q1104:
Multiple TCP connections can be opened ________.
A. simultaneously
B. only one at a time
C. only sequentially
D. only with the same IP
Correct Answer:
A
Chapter: 36
Q1105:
Adaptive retransmission in TCP involves adjusting the ________.
A. timer interval
B. packet size
C. buffer size
D. window size
Correct Answer:
A
Chapter: 36
Q1106:
If the retransmission timer interval is too large, TCP ________.
A. waits unnecessarily
B. forgets packets
C. sends duplicates
D. drops the connection
Correct Answer:
A
Chapter: 36
Q1107:
If the retransmission timer interval is too short, TCP ________.
A. sends unnecessary retransmissions
B. never retransmits
C. ignores acknowledgements
D. delays data
Correct Answer:
A
Chapter: 36
Q1108:
TCP estimates round trip time for each ________.
A. connection
B. packet
C. buffer
D. window
Correct Answer:
A
Chapter: 36
Q1109:
The key to TCP’s success in retransmission is ________.
A. adaptive retransmission
B. fixed timer
C. connectionless protocol
D. high bandwidth
Correct Answer:
A
Chapter: 36
Q1110:
TCP uses ________ mechanism to control data flow.
A. buffer
B. window
C. packet
D. connection
Correct Answer:
D
Chapter: 36
Q1111:
The amount of buffer space available at any time is called the ________.
A. window
B. buffer size
C. packet size
D. segment size
Correct Answer:
A
Chapter: 36
Q1112:
A notification specifying the size of the buffer space in TCP is called the ________.
A. window advertisement
B. buffer advertisement
C. packet announcement
D. segment alert
Correct Answer:
A
Chapter: 36
Q1113:
The maximum segment size in the example figure is ________.
A. 1000 octets
B. 500 octets
C. 1500 octets
D. 2000 octets
Correct Answer:
A
Chapter: 36
Q1114:
In TCP flow control, a sender can transmit data up to the size of the ________.
A. currently advertised window
B. buffer size
C. packet size
D. segment length
Correct Answer:
A
Chapter: 36
Q1115:
The TCP connection termination uses a ________.
A. three-way handshake
B. two-way handshake
C. four-way handshake
D. five-way handshake
Correct Answer:
A
Chapter: 36
Q1116:
Acknowledgements in each direction during TCP connection closing guarantee ________.
A. all data has arrived
B. connection speed
C. security
D. level of encryption
Correct Answer:
A
Chapter: 36
Q1117:
A three-way handshake is used to ________.
A. close a connection
B. start data transmission
C. establish encryption
D. route the packet
Correct Answer:
D
Chapter: 36
Q1118:
To begin a TCP connection, each end generates a ________.
A. random 32-bit sequence number
B. fixed 16-bit number
C. random 64-bit number
D. packet checksum
Correct Answer:
A
Chapter: 36
Q1119:
After a computer reboots, TCP chooses a ________ for new connections.
A. new random sequence number
B. same old number
C. manual number
D. fixed number
Correct Answer:
A
Chapter: 36
Q1120:
TCP retransmission timer is set based on ________.
A. round trip time
B. segment size
C. buffer size
D. packet type
Correct Answer:
A