Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q361: What does IEEE 802.2 LLC add to Ethernet frames?
- A: Logical Link Control and SNAP headers
- B: Error checking
- C: Encryption
- D: Compression
View Answer
A
Q362: What does SNAP stand for?
- A: Subnetwork Access Protocol
- B: Subnetwork Attachment Point
- C: Secure Network Access
- D: Standard Network Addressing
View Answer
B
Q363: When a frame type is unknown to the receiver, it:
- A: Processes the frame
- B: Discards the frame
- C: Forwards the frame
- D: Requests retransmission
View Answer
B
Q364: A network analyzer is used to:
- A: Debug network performance
- B: Send broadcast frames
- C: Encrypt frames
- D: Increase CPU efficiency
View Answer
A
Q365: Network interface cards in promiscuous mode:
- A: Receive only their own frames
- B: Receive all frames on the LAN
- C: Discard unknown frames
- D: Encrypt traffic
View Answer
B
Q366: Network analyzers can filter captured frames based on:
- A: Source or destination address
- B: Frame size
- C: Type of frame
- D: All of the above
View Answer
D
Q367: Multicasting reduces CPU usage by:
- A: Forwarding frames to all devices
- B: Restricting frames to selected addresses
- C: Not forwarding any frames
- D: Increasing network traffic
View Answer
B
Q368: The broadcast address in Ethernet frames is used to:
- A: Send frames to all nodes
- B: Send frames to one node
- C: Send error messages
- D: Send acknowledgements
View Answer
A
Q369: Which of the following is NOT accepted by multicast programmed interface hardware?
- A: Multicast frames
- B: Broadcast frames
- C: Frames destined to the station itself
- D: Frames destined to unrelated stations
View Answer
D
Q370: The source address field in Ethernet frames contains:
- A: The sender's hardware address
- B: The intended receiver's address
- C: The type of data
- D: The CRC code
View Answer
A