Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q141: What is the term for a hardware-specific packet format?
- A: Segment
- B: Packet
- C: Block
- D: Frame
View Answer
D
Q142: The term ‘frame’ is associated with which layer of network communication?
- A: Hardware layer
- B: Application layer
- C: Transport layer
- D: Session layer
View Answer
A
Q143: In a frame, what symbols typically denote the start and end of a transmission?
- A: ACK and NAK
- B: START and STOP
- C: SOH and EOT
- D: CTRL and ALT
View Answer
C
Q144: What is added between frames in practical framing to prevent delays?
- A: Header byte
- B: Checksum
- C: Extra character
- D: Length field
View Answer
C
Q145: Which of the following indicates a crash in the sending computer during transmission?
- A: Missing SOH
- B: Missing data
- C: Missing EOT
- D: Extra frame
View Answer
C
Q146: Framing in networks is needed to define _______.
- A: Error rates
- B: Traffic patterns
- C: Packet priority
- D: The beginning and end of a packet
View Answer
D
Q147: Without packets, a 5MB file transfer blocks the network for __________.
- A: 2 minutes
- B: 5 minutes
- C: 12 minutes
- D: 30 seconds
View Answer
C
Q148: Using packets, a 1000-byte packet on a 56Kbps link takes about __________ to transmit.
- A: 0.14 seconds
- B: 1 second
- C: 0.5 seconds
- D: 0.01 seconds
View Answer
A
Q149: The main advantage of dividing data into packets is to ________.
- A: Improve audio quality
- B: Support long-distance communication
- C: Reduce processing time
- D: Allow other computers to transmit without long delay
View Answer
D
Q150: What is the purpose of adding a header and tail in a frame?
- A: Increase security
- B: Mark start and end of data
- C: Encrypt data
- D: Compress data
View Answer
B