Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2441: Which of the following is NOT part of the MAC sub-layer's responsibility?
- A: Multiple-access protocols
- B: Addressing on shared links
- C: Establishing communication sessions
- D: Coordinating link access
View Answer
C
Q2442: Which type of link requires a multiple-access protocol to coordinate node access?
- A: Unicast
- B: Broadcast
- C: Point-to-point
- D: Full-duplex
View Answer
B
Q2443: Fill in the blank: Multiple-access protocols belong to the _______ sub-layer.
- A: Physical
- B: Network
- C: Transport
- D: Media Access Control (MAC)
View Answer
D
Q2444: What is the role of a multiple-access protocol in a broadcast network?
- A: To enable reliable communication
- B: To avoid data collisions
- C: To encrypt data
- D: To improve network speed
View Answer
B
Q2445: Which of the following protocols falls under the MAC sub-layer?
- A: HTTP
- B: TCP/IP
- C: Carrier Sense Multiple Access (CSMA)
- D: FTP
View Answer
C
Q2446: Which of the following is an example of a protocol used in the MAC sub-layer?
- A: IPv6
- B: CSMA/CD
- C: UDP
- D: FTP
View Answer
B
Q2447: Fill in the blank: The MAC sub-layer operates between the _______ and the Network layer.
- A: Transport layer
- B: Physical layer
- C: Data link layer
- D: Network layer
View Answer
C
Q2448: What is the main function of a multiple-access protocol in shared network links?
- A: To divide the bandwidth equally
- B: To control when each node can access the link
- C: To encrypt the communication
- D: To provide flow control
View Answer
B
Q2449: Which of the following is the primary task of the MAC sub-layer in a network?
- A: Perform error detection
- B: Control access to the shared communication link
- C: Provide reliable data transfer
- D: Ensure data privacy
View Answer
B
Q2450: What type of link does the MAC sub-layer typically manage?
- A: Unicast links
- B: Broadcast and multipoint links
- C: Full-duplex links
- D: Mesh networks
View Answer
B