Which term is described by 'coding data to hide it'?

Which term is described by 'coding data to hide it'?

• A. Automatic repeat query
• B. Encryption
• C. Symmetric encryption
• D. Asymmetric encryption

Answer: (A)

Coding data to hide it is encryption. Encryption converts readable data (plaintext) into an unreadable form (ciphertext) using a key, so that only someone with the correct key can restore the original message. There are two main kinds: symmetric encryption uses the same key to both encode and decode, while asymmetric encryption uses a pair of keys (one for encoding, one for decoding). Automatic repeat query is about ensuring data is received correctly by asking for retransmission, not about hiding content. So the term that fits the description is encryption.

Coding data to hide it is encryption. Encryption converts readable data (plaintext) into an unreadable form (ciphertext) using a key, so that only someone with the correct key can restore the original message.

There are two main kinds: symmetric encryption uses the same key to both encode and decode, while asymmetric encryption uses a pair of keys (one for encoding, one for decoding).

Automatic repeat query is about ensuring data is received correctly by asking for retransmission, not about hiding content. So the term that fits the description is encryption.