Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q161: In odd parity, the total number of 1’s in the data should be ________.
- A: Even
- B: Odd
- C: Prime
- D: Negative
View Answer
B
Q162: A parity bit is added to ensure ________.
- A: Security
- B: Encryption
- C: Correct parity
- D: Compression
View Answer
C
Q163: What is the main limitation of parity checking?
- A: It increases file size
- B: It cannot detect even-bit errors
- C: It is slow
- D: It uses complex math
View Answer
B
Q164: Parity checking usually detects ________.
- A: All errors
- B: Two-bit errors
- C: One-bit errors
- D: No errors
View Answer
C
Q165: What does checksum use to detect errors?
- A: Bitwise XOR
- B: Multiplication
- C: Arithmetic sum of integers
- D: Subtraction
View Answer
C
Q166: Which of the following is TRUE about checksum?
- A: It can detect all errors
- B: It is complex
- C: It uses only addition
- D: It is hardware-based
View Answer
C
Q167: Checksum errors are detected when ________.
- A: The received checksum matches the original
- B: The checksums are different
- C: The receiver fails
- D: The message is lost
View Answer
B
Q168: What is the limitation of checksum?
- A: Can detect only burst errors
- B: Cannot detect any errors
- C: Cannot detect all errors
- D: Too slow for real-time use
View Answer
C
Q169: What is the full form of CRC?
- A: Cyclic Repeat Check
- B: Cyclic Redundancy Check
- C: Cyclic Redundant Code
- D: Circuit Relay Code
View Answer
B
Q170: CRC allows error detection by treating data as ________.
- A: Text
- B: Characters
- C: Polynomials
- D: Packets
View Answer
C