Computer Networks MCQs with Answers
Practice important Computer Networks MCQs with answers and explanations.
Multiple Choice Questions
Q171: What is transmitted along with data in CRC?
- A: Encryption key
- B: Original data
- C: Acknowledgement
- D: Remainder of polynomial division
View Answer
D
Q172: CRC uses which two hardware components?
- A: Memory and ALU
- B: Shift register and XOR unit
- C: Cache and RAM
- D: Register and Adder
View Answer
B
Q173: The function of a shift register includes ________.
- A: Multiplying bits
- B: Shuffling bits
- C: Adding bits
- D: Initializing and shifting bits
View Answer
D
Q174: The XOR unit is primarily used in ________.
- A: Compression
- B: Encryption
- C: Parity checking
- D: CRC
View Answer
D
Q175: What is one advantage of CRC?
- A: It is complex
- B: It is hard to implement
- C: It is easy to implement in hardware
- D: It slows down communication
View Answer
C
Q176: Transmission errors may be caused by ________.
- A: Strong signals
- B: Interference or power surges
- C: High bandwidth
- D: Stable networks
View Answer
B
Q177: Which of the following is NOT an error detection scheme?
- A: CRC
- B: Checksum
- C: Compression
- D: Parity checking
View Answer
C
Q178: Byte stuffing translates reserved bytes into ________.
- A: One reserved byte
- B: Two reserved bytes
- C: Two unreserved bytes
- D: Multiple characters
View Answer
C
Q179: In byte stuffing, ESC x represents ________.
- A: SOH
- B: EOT
- C: ECO
- D: EOF
View Answer
A
Q180: In byte stuffing, the receiver replaces ESC y with ________.
- A: EOT
- B: SOH
- C: ECO
- D: ESC
View Answer
A