Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q351: Multicasting differs from broadcasting because it:
- A: Forwards frames to all computers
- B: Restricts frame forwarding to certain addresses
- C: Discards all broadcast frames
- D: Uses less memory than broadcasting
View Answer
B
Q352: Which frames does the interface hardware accept when programmed for multicasting?
- A: Only unicast frames
- B: Multicast frames, broadcast frames, and frames addressed to the station itself
- C: Only broadcast frames
- D: Only multicast frames
View Answer
B
Q353: Multicast addressing allows:
- A: All computers to receive audio frames
- B: Only computers running the audio application to receive audio frames
- C: No computers to receive audio frames
- D: Only computers with the highest CPU speed to receive frames
View Answer
B
Q354: In explicit frame type identification, the frame includes:
- A: A value describing the type of data
- B: Only data without any header
- C: An implicit hint about the data type
- D: No indication of data type
View Answer
A
Q355: Implicit frame type identification means:
- A: The receiver infers the data type from the frame content
- B: The frame has an explicit type field
- C: The frame data is encrypted
- D: No data type information is present
View Answer
A
Q356: What are the two main parts of a LAN frame?
- A: Header and payload
- B: Header and footer
- C: Source address and destination address
- D: CRC and preamble
View Answer
A
Q357: What is the purpose of the Ethernet frame preamble?
- A: Identify the intended receiver
- B: Synchronize the receiver
- C: Carry the payload data
- D: Provide error checking
View Answer
B
Q358: Which Ethernet field identifies the intended receiver?
- A: Destination address
- B: Source address
- C: Frame type
- D: CRC
View Answer
A
Q359: The CRC field in an Ethernet frame is used for:
- A: Error detection
- B: Data payload
- C: Receiver synchronization
- D: Sender address
View Answer
A
Q360: In LANs without a type field, data format is usually:
- A: Encoded in the first few bytes of the data
- B: Not used
- C: Encoded in the CRC
- D: Encoded in the preamble
View Answer
A