Data Communication MCQs with Answers
Practice important Data Communication MCQs with answers and explanations.
Multiple Choice Questions
Q2141: Which of the following is a limitation of Forward Error Correction?
- A: It cannot detect errors
- B: It requires additional bandwidth
- C: It uses encryption only
- D: It introduces latency
View Answer
B
Q2142: Which field of networking most benefits from Hamming Distance calculations?
- A: Firewall settings
- B: Error handling and correction
- C: Authentication
- D: Compression
View Answer
B
Q2143: What operation is used in Forward Error Correction to compute R in the formula R = P1 + P2 + ... + PN?
- A: AND
- B: OR
- C: XOR
- D: NAND
View Answer
C
Q2144: Fill in the blank: The XOR operation is used in FEC to calculate ______ from the given packets.
- A: Payload
- B: Redundancy
- C: Header
- D: Sequence
View Answer
B
Q2145: If R = P1 + P2 + P3 + P4 using XOR, what is P2 equal to?
- A: R - P1 - P3 - P4
- B: P1 XOR P3 XOR P4 XOR R
- C: R + P1 + P3 + P4
- D: P1 * P3 * R
View Answer
B
Q2146: What technique allows some small chunks to be missing in multimedia transmission?
- A: Encoding
- B: Compression
- C: Chunk Interleaving
- D: Re-sending
View Answer
C
Q2147: Fill in the blank: In Chunk Interleaving, it is acceptable to lose ______ chunk(s) per packet.
- A: All
- B: More than two
- C: One
- D: None
View Answer
C
Q2148: Which error-handling technique helps in correcting burst errors using multiple rows and columns?
- A: Bit stuffing
- B: Hamming Interleaving
- C: Interleaved Correction
- D: Combined Hamming & Interleaving
View Answer
D
Q2149: To correct m × t bits of burst errors, we must use ______.
- A: Bit stuffing and retransmission
- B: Chunking and lossless compression
- C: Redundancy and masking
- D: Hamming codes with m-row interleaving
View Answer
D
Q2150: Fill in the blank: In interleaving, after creating packets, we send bits ______.
- A: row-wise
- B: packet-wise
- C: column-wise
- D: randomly
View Answer
C