FC0-U71 · Question #145
Which of the following notational systems uses the numbers 0-9 and letters A-F?
The correct answer is D. Hexadecimal. The hexadecimal number system utilizes digits 0-9 and letters A-F to represent values in base 16.
Question
Which of the following notational systems uses the numbers 0-9 and letters A-F?
Options
- AOctal
- BBinary
- CDecimal
- DHexadecimal
How the community answered
(23 responses)- B4% (1)
- C4% (1)
- D91% (21)
Why each option
The hexadecimal number system utilizes digits 0-9 and letters A-F to represent values in base 16.
Octal (base-8) uses digits 0-7 only.
Binary (base-2) uses digits 0 and 1 only.
Decimal (base-10) uses digits 0-9 only.
Hexadecimal (base-16) is a number system that uses 16 distinct symbols. These symbols are the digits 0 through 9 and the letters A, B, C, D, E, F to represent values from ten to fifteen.
Concept tested: Number systems - hexadecimal
Source: https://learn.microsoft.com/en-us/cpp/cpp/lexical-conventions?view=msvc-170
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