Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q151: Which of the following best describes a ‘packet’?
- A: A type of cable
- B: Small block of data
- C: A programming code
- D: Network interface
View Answer
B
Q152: A 10MB file, if packetized and time-shared, can be transmitted in only ________ seconds.
- A: 24
- B: 2.8
- C: 10
- D: 12
View Answer
B
Q153: In practice, each frame includes ______ to maintain synchronization.
- A: Stop bit
- B: Extra character
- C: Null character
- D: Control bit
View Answer
B
Q154: A shared connection between multiple workstations avoids the need for ________.
- A: Multiple physical connections
- B: Encryption
- C: Firewalls
- D: Repeaters
View Answer
A
Q155: What is the purpose of byte stuffing in data transmission?
- A: To encrypt data
- B: To compress data
- C: To prevent misinterpretation of control characters
- D: To improve transmission speed
View Answer
C
Q156: Which characters are commonly replaced in byte stuffing using ESC prefixes?
- A: Only numbers
- B: Reserved bytes like SOH, EOT
- C: All alphabets
- D: Special symbols
View Answer
B
Q157: Byte stuffing is mainly used with ________.
- A: Bit-oriented hardware
- B: Character-oriented hardware
- C: Wireless devices
- D: Cloud servers
View Answer
B
Q158: Bit stuffing is used with ________.
- A: Character-oriented hardware
- B: Analog hardware
- C: Bit-oriented hardware
- D: Optical devices
View Answer
C
Q159: What is the purpose of parity checking?
- A: To compress data
- B: To encrypt messages
- C: To detect errors in data transmission
- D: To balance network load
View Answer
C
Q160: In even parity, the total number of 1’s in the data should be ________.
- A: Odd
- B: Even
- C: Zero
- D: Multiple of three
View Answer
B