Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q191: CRC can detect errors better than checksum in case of ________.
- A: Simple errors
- B: Vertical and burst errors
- C: Random errors
- D: Even errors
View Answer
B
Q192: Which type of error damages the second bit of every character?
- A: Burst error
- B: Parity error
- C: Vertical error
- D: Cyclic error
View Answer
C
Q193: What type of error occurs due to a nearby lightning or electric motor startup?
- A: Checksum error
- B: Parity error
- C: Vertical error
- D: Burst error
View Answer
D
Q194: When a frame with CRC has an error, the receiver usually ______.
- A: Forwards the frame
- B: Stores the frame
- C: Discards the frame
- D: Corrects the frame
View Answer
C
Q195: CRC is calculated after ______.
- A: Shifting all data bits
- B: Receiving the data
- C: Encrypting the data
- D: Framing the data
View Answer
A
Q196: In direct point-to-point communication, each channel connects _______.
- A: Multiple devices
- B: Only one computer
- C: Exactly two computers
- D: A router and a switch
View Answer
C
Q197: What does a point-to-point communication form?
- A: Star topology
- B: Bus topology
- C: Mesh topology
- D: Ring topology
View Answer
C
Q198: How many connections are needed for 5 computers using direct point-to-point communication?
- A: 10
- B: 5
- C: 15
- D: 25
View Answer
A
Q199: Which is an advantage of point-to-point communication?
- A: Limited scalability
- B: Complex configuration
- C: Easy to enforce security
- D: Expensive setup
View Answer
C
Q200: Which of the following is a disadvantage of point-to-point networks?
- A: Scalability
- B: Privacy
- C: Custom formats
- D: High cost due to many connections
View Answer
D