Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q1701: Fill in the blank: The ______ layer is associated with managing physical circuits in networking.
- A: Physical
- B: Transport
- C: Datalink
- D: Session
View Answer
A
Q1702: Which is NOT a characteristic of datagram switching?
- A: Each packet takes different paths
- B: Packets follow virtual paths
- C: No prior setup required
- D: Used at the network layer
View Answer
B
Q1703: A virtual-circuit network is a cross between ______.
- A: circuit-switched and datagram networks
- B: datagram and token-ring networks
- C: circuit-switched and mesh networks
- D: packet and TDM networks
View Answer
A
Q1704: Which of the following statements is TRUE about virtual circuits?
- A: They use different paths for each packet
- B: They don’t require any setup
- C: They use fixed physical paths
- D: They follow a predefined logical path
View Answer
D
Q1705: Fill in the blank: Virtual circuits are managed at the ______ level within a switch.
- A: local switch
- B: scope-based
- C: global hardware
- D: application-level
View Answer
A
Q1706: What is the scope of a virtual circuit label like vc1 in a network switch?
- A: Global
- B: Local
- C: Session-based
- D: Encrypted
View Answer
B
Q1707: In a virtual-circuit network, a packet carries which of the following identifiers?
- A: IP Address
- B: MAC Address
- C: Virtual Circuit Identifier (VCI)
- D: Port Number
View Answer
C
Q1708: Which of the following is TRUE about a Virtual Circuit Identifier (VCI)?
- A: It changes from switch to switch
- B: It remains same end-to-end
- C: It is the IP address of the node
- D: It is used only in datagram networks
View Answer
A
Q1709: Fill in the blank: A virtual circuit exists only ______.
- A: after the teardown phase
- B: is setup globally
- C: is setup and maintained locally in each switch
- D: is encrypted end-to-end
View Answer
C
Q1710: What happens to a virtual circuit after teardown?
- A: It becomes static
- B: It’s reserved permanently
- C: It is deleted from local switch tables
- D: It is reassigned randomly
View Answer
C