Hexadecimal bytes to ASCII characters: Interpret the three-byte sequence 4B 52 58 (hex) as ASCII and select the correct 3-character string.

Introduction / Context: Converting between hexadecimal byte values and ASCII characters is a routine skill in debugging, embedded development, and protocol analysis. This question asks you to translate three hexadecimal bytes into their ASCII character equivalents to form a readable 3-character string.

Given Data / Assumptions:

• Hex values: 4B, 52, 58.
• Standard ASCII mapping (7-bit encoded within an 8-bit byte).
• Uppercase letters A–Z occupy decimal 65–90 (hex 41–5A).

Concept / Approach: Each byte represents one ASCII character. The mapping is as follows: hex 41 = 'A', 42 = 'B', …, 4B = 'K'; hex 52 falls within the uppercase range and is 'R'; hex 58 is 'X'. By decoding each byte, the final string is built by concatenation in order.

Step-by-Step Solution:

Verification / Alternative check: Cross-check with an ASCII table: the range 0x41–0x5A corresponds to uppercase letters. All three values lie in that range and map to the expected letters, confirming the result.

Why Other Options Are Wrong: FGM, KLM, and JQW correspond to different hex sequences and do not match 4B 52 58. Therefore, they are plausible-looking but incorrect distractors.

Common Pitfalls: Confusing hex values with decimal indices; reading bytes in reverse order; mixing ASCII with extended encodings that change character mappings.

Final Answer: KRX