Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1681: Fill in the blank: A virtual-circuit network requires a ______ before communication begins.
- A: packetization
- B: broadcast
- C: session setup
- D: link reset
View Answer
C
Q1682: The term "virtual" in virtual-circuit refers to ______.
- A: a real physical wire
- B: a simulated dedicated path
- C: a wireless connection
- D: a circuit board
View Answer
B
Q1683: How are packets treated in a virtual-circuit network?
- A: As independent units
- B: As datagrams
- C: With shared routing
- D: As part of a predefined path
View Answer
D
Q1684: Which of the following steps is **not** part of virtual-circuit communication?
- A: Connection setup
- B: Packetization
- C: Address randomization
- D: Connection teardown
View Answer
C
Q1685: Virtual-circuit networks offer a path that is ______ during the communication session.
- A: dynamically routed
- B: dedicated but virtual
- C: encrypted
- D: randomly assigned
View Answer
B
Q1686: What is the key benefit of virtual-circuit switching?
- A: Improved packet independence
- B: Guaranteed bandwidth and path
- C: Packets follow random paths
- D: No need for routing tables
View Answer
B
Q1687: In a virtual-circuit network, teardown occurs ______.
- A: before setup
- B: at the end of communication
- C: during each packet transmission
- D: randomly
View Answer
B
Q1688: Fill in the blank: In virtual-circuit networks, all packets take the ______.
- A: best-effort route
- B: dedicated path
- C: direct link
- D: static IP
View Answer
B
Q1689: Virtual-circuit networks are designed to provide ______.
- A: fast encryption
- B: random routing
- C: a logical path similar to physical circuits
- D: coding structure
View Answer
C
Q1690: A virtual-circuit network is a cross between ______.
- A: packet-switched and ring networks
- B: circuit-switched and datagram networks
- C: star and mesh networks
- D: physical and logical networks
View Answer
B