Redundancy in data transmission is best described as the repetition of information to reduce errors.

Redundancy in data transmission is best described as the repetition of information to reduce errors.

• A. A method to compress data
• B. A way to encrypt data
• C. Repetition of information to reduce errors
• D. A routing algorithm

Answer: (C)

Redundancy in data transmission means adding extra information so the original data can be recovered even if some bits get corrupted. This extra information helps detect errors and often correct them without needing a retransmission. It’s not about making data smaller (that would be compression), not about hiding content (that would be encryption), and not about choosing a path for data to travel (that’s routing). By including parity bits, checksums, or even repeating data itself, systems gain reliability in the presence of noise. That’s why the description—repetition of information to reduce errors—best matches redundancy.

Redundancy in data transmission means adding extra information so the original data can be recovered even if some bits get corrupted. This extra information helps detect errors and often correct them without needing a retransmission. It’s not about making data smaller (that would be compression), not about hiding content (that would be encryption), and not about choosing a path for data to travel (that’s routing). By including parity bits, checksums, or even repeating data itself, systems gain reliability in the presence of noise. That’s why the description—repetition of information to reduce errors—best matches redundancy.