Recognizing the ASCII range | LinuC Level 1 102 Exam original practice question

1.08.3Basic

Review the bit width and character range of the basic ASCII code.

Which description is correct?

Hint 1: Focus on locale scope

Identify which locale category controls the displayed language, numeric format, or date and time format.

Hint 2: Key terms

Review the short definitions of locale categories, character encoding, and timezone settings involved.

ASCII: A seven-bit character set for letters, digits, basic symbols, and controls.
UTF-8: A Unicode encoding that uses one to four bytes per code point.
7-bit: A representation with seven binary bits and values from 0 through 127.
Control character: A non-printing character used to control text or device behavior.

Detailed explanation

IncorrectUnicode全体を1～4バイトで表す

Incorrect. This describes UTF-8-like Unicode encoding.

Incorrect西欧文字256種類を8ビットで表す

Incorrect. This resembles an 8-bit Western character set.

Incorrect日本語をescape sequenceで切り替えて表す

Incorrect. Escape-based Japanese switching resembles ISO-2022-JP.

Correct英数字・基本記号・制御文字を7ビットで表す

Correct. ASCII uses 7 bits for 0–127.

An example you can run in a temporary verification environment.

printf 'A' | od -An -tu1

Foundation review

A setting that controls language, numeric formatting, collation, or date display.

A mapping between characters and the bytes used to represent them.

A rule set that converts timestamps for a region or display context.

Question IDKL-102-1066

EnvironmentPOSIX printfとod / ASCII文字のみ

Last technical review2026-08-13

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