Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Chapter: 118
Q1661:
In a circuit-switched network, what happens after the data transfer is complete?
A. The bandwidth increases
B. A new IP address is assigned
C. Connection is terminated
D. Packet buffering starts
Correct Answer:
C
Chapter: 118
Q1662:
Which of the following best describes the delay characteristic of circuit-switched networks?
A. Delays occur frequently
B. High jitter
C. Minimal delay once setup is done
D. Delays increase with data size
Correct Answer:
C
Chapter: 118
Q1663:
Why might circuit-switched networks be less suited for modern data traffic?
A. They have low bandwidth
B. They use old modulation
C. They lock resources unnecessarily
D. They lack security
Correct Answer:
C
Chapter: 118
Q1664:
Fill in the blank: Circuit switching is more suitable for ______ communication.
A. burst
B. data voice
C. random
Correct Answer:
C
Chapter: 118
Q1665:
Which type of network provides better resource utilization?
A. Circuit-switched
B. Message-switched
C. Packet-switched
D. Voice-switched
Correct Answer:
C
Chapter: 118
Q1666:
In which case does circuit switching perform better than packet switching?
A. Real-time voice calls
B. Email transmission
C. File transfer
D. Image sharing
Correct Answer:
A
Chapter: 119
Q1667:
In a packet-switched network, the message must be divided into ______.
A. pulses
B. bits
C. characters
D. packets
Correct Answer:
D
Chapter: 119
Q1668:
Fill in the blank: In packet switching, a message is divided into ______.
A. frames
B. packets
C. segments
D. blocks
Correct Answer:
B
Chapter: 119
Q1669:
The size of packets in a packet-switched network is determined by the ______.
A. user
B. application
C. protocol and network
D. government
Correct Answer:
C
Chapter: 119
Q1670:
Which of the following best describes a datagram network?
A. Packets follow the same path
B. Packets are dependent
C. Packets are treated independently
D. Only one packet is allowed per message
Correct Answer:
C
Chapter: 119
Q1671:
In a datagram network, each packet is called a ______.
A. message
B. datagram
C. frame
D. byte
Correct Answer:
B
Chapter: 119
Q1672:
What happens to a datagram if it is part of a multi-packet message?
A. It is combined with others
B. It is dropped
C. It is treated independently
D. It is encrypted
Correct Answer:
C
Chapter: 119
Q1673:
Fill in the blank: Datagram networks treat each packet as if it ______.
A. is part of a stream
B. is part of a large message
C. is independent
D. exists in a batch
Correct Answer:
C
Chapter: 119
Q1674:
Which statement is TRUE about datagram networks?
A. They guarantee packet order
B. They guarantee delivery
C. They do not rely on connection setup
D. They provide dedicated paths
Correct Answer:
C
Chapter: 119
Q1675:
In packet-switched networks, which factor influences the size of a packet?
A. Hardware design
B. User bandwidth
C. Network design and protocol standards
D. Software brand
Correct Answer:
C
Chapter: 119
Q1676:
Why is message division into packets necessary in packet-switched networks?
A. To allow multiple users to share the network
B. To avoid data loss
C. To encrypt messages
D. To compress the message
Correct Answer:
A
Chapter: 119
Q1677:
Each packet in a datagram network may follow a ______.
A. preset path
B. single path
C. centralized route
D. different path
Correct Answer:
D
Chapter: 120
Q1678:
A virtual-circuit network is a combination of which two types of networks?
A. Circuit-switched and broadcast
B. Datagram and LAN
C. Circuit-switched and datagram
D. Bus and ring
Correct Answer:
C
Chapter: 120
Q1679:
Which feature is present in both circuit-switched and virtual-circuit networks?
A. No need for path setup
B. Packet independence
C. Setup and teardown process
D. Broadcast capability
Correct Answer:
C
Chapter: 120
Q1680:
In a virtual-circuit network, how are packets delivered?
A. Over random routes
B. Through a dedicated path
C. Over multiple parallel channels
D. Through broadcast routing
Correct Answer:
B