CompTIA
FC0-U71 · Question #14
Which of the following represents the value of 9 with ones and zeros?
The correct answer is C. Binary. Binary is the base-2 number system that uses only two digits: 0 and 1. The decimal number 9 is represented in binary as 1001 (1×8 + 0×4 + 0×2 + 1×1). Decimal uses digits 0–9, octal uses digits 0–7, and hexadecimal uses digits 0–9 plus letters A–F - none of these are limited to…
IT Concepts and Terminology
Question
Which of the following represents the value of 9 with ones and zeros?
Options
- AOctal
- BDecimal
- CBinary
- DHexadecimal
How the community answered
(44 responses)- A7% (3)
- B2% (1)
- C89% (39)
- D2% (1)
Explanation
Binary is the base-2 number system that uses only two digits: 0 and 1. The decimal number 9 is represented in binary as 1001 (1×8 + 0×4 + 0×2 + 1×1). Decimal uses digits 0–9, octal uses digits 0–7, and hexadecimal uses digits 0–9 plus letters A–F - none of these are limited to only ones and zeros.
Topics
#Number systems#Binary representation#Data representation
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