Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q181: Byte stuffing is an example of ________.
- A: Data encryption
- B: Data transmission
- C: Data stuffing
- D: Error correction
View Answer
C
Q182: Transmission errors are often caused by __________.
- A: cloud storage
- B: interference or power surges
- C: network speed
- D: user input
View Answer
B
Q183: In CRC, data is interpreted as a __________.
- A: packet
- B: stream
- C: polynomial
- D: table
View Answer
C
Q184: _________ and XOR are used in hardware implementation of CRC.
- A: CPU
- B: Shift register
- C: Accumulator
- D: Timer
View Answer
B
Q185: A major drawback of parity checking is its inability to detect ________.
- A: any errors
- B: multiple errors
- C: even-bit errors
- D: false bits
View Answer
C
Q186: What operation moves all bits one position to the left?
- A: Rotate
- B: Shift
- C: Increment
- D: Swap
View Answer
B
Q187: What does a shift register do in CRC hardware?
- A: Encrypts data
- B: Stores data temporarily
- C: Shifts data bits
- D: Multiplies bits
View Answer
C
Q188: What is the purpose of the XOR units in CRC computation?
- A: To store data
- B: To compress data
- C: To perform division
- D: To combine bits logically
View Answer
D
Q189: In CRC hardware, what is the initial value of the registers?
- A: All 1s
- B: All 0s
- C: Random values
- D: Alternating bits
View Answer
B
Q190: How many shift registers are used in the 16-bit CRC hardware example?
- A: 2
- B: 3
- C: 4
- D: 5
View Answer
B