Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1691: Which layer uses the virtual-circuit approach?
- A: Network layer
- B: Application layer
- C: Datalink layer
- D: Physical layer
View Answer
C
Q1692: Datagram switching is used at which layer of the OSI model?
- A: Application layer
- B: Transport layer
- C: Network layer
- D: Physical layer
View Answer
C
Q1693: In circuit-switching, the path is ______.
- A: virtual and shared
- B: shared with other users
- C: dynamic and best-effort
- D: physically dedicated
View Answer
D
Q1694: Which switching technique is most commonly used at the physical layer?
- A: Datagram switching
- B: Virtual-circuit switching
- C: Circuit switching
- D: Packet switching
View Answer
C
Q1695: Fill in the blank: In the OSI model, the ______ layer uses datagram switching.
- A: Physical
- B: Network
- C: Datalink
- D: Presentation
View Answer
B
Q1696: What type of path is used in circuit switching?
- A: Fixed and physical
- B: Variable and logical
- C: Random and virtual
- D: Dynamic and encrypted
View Answer
A
Q1697: Which of the following best describes the path in a datagram network?
- A: Predefined
- B: Dedicated
- C: Varied for each packet
- D: None of the above
View Answer
C
Q1698: The virtual-circuit approach is applied in the ______ layer.
- A: Network layer
- B: Transport layer
- C: Datalink layer
- D: Application layer
View Answer
C
Q1699: Which switching technique requires address lookup for every packet?
- A: Virtual-circuit switching
- B: Datagram switching
- C: Circuit switching
- D: TDM switching
View Answer
B
Q1700: In circuit switching, path establishment is done ______ data transmission.
- A: after
- B: during
- C: before
- D: randomly
View Answer
C