Which encoding uses the hex value of every character to represent binary data for transmission?

• A. Hex Encoding
• B. HTML Encoding
• C. Base64 Encoding
• D. URL Encoding

Answer: (A)

Hex encoding expresses each byte as its two-digit hexadecimal value for transmission. In this scheme, every byte of data is shown as two hex digits, so the textual string directly encodes the binary data. For example, a byte with the value 0x4F would be represented as “4F.” This makes the data easy to transmit over text-based channels while preserving the exact binary content.

Other encodings use different methods: HTML encoding uses character references like   or « to represent specific characters; Base64 packs every three bytes into four ASCII characters from a 64-character set; URL encoding converts certain characters to %HH sequences, but only for non-safe characters, not for every byte.