Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2151: Which combination increases error correction capability in multimedia streams?
- A: ARQ + delay
- B: Checksum + CRC
- C: Hamming + Interleaving
- D: Redundancy + encryption
View Answer
C
Q2152: What does the “t” represent in a packet that can correct “t” bit errors using Hamming distance?
- A: Number of bits lost
- B: Number of packets sent
- C: Number of errors that can be corrected
- D: Number of chunks combined
View Answer
C
Q2153: What is a benefit of combining high and low resolution packets in transmission?
- A: More redundancy
- B: Better compression
- C: Error correction and efficient playback
- D: Decreased delay
View Answer
C
Q2154: Fill in the blank: In the compounding method, high-resolution packets are combined with ______ resolution duplicates.
- A: random
- B: low
- C: medium
- D: super-high
View Answer
B
Q2155: How many low-resolution packets can be created from five high-resolution packets, according to the content?
- A: Two
- B: Three
- C: Four
- D: Five
View Answer
C
Q2156: What is the role of redundant low-resolution packets in compounding?
- A: Data reordering
- B: Encryption
- C: Error reproduction
- D: Data recovery
View Answer
D
Q2157: Which of the following is an FEC technique that supports real-time multimedia transmission?
- A: Retransmission
- B: Interleaving only
- C: Chunk drop only
- D: Combining redundancy and error correction
View Answer
D
Q2158: Fill in the blank: Using XOR operations in FEC enables the receiver to ______.
- A: encrypt packets
- B: remove headers
- C: reconstruct missing packets
- D: synchronize clocks
View Answer
C
Q2159: Which error correction method is preferred when delay is not acceptable?
- A: Retransmission
- B: Forward Error Correction
- C: Cyclic Codes
- D: Back Propagation
View Answer
B
Q2160: In the formula Pi = P1 + P2 + … + R + … + PN, what does "+" denote?
- A: OR
- B: XOR
- C: AND
- D: NAND
View Answer
B