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Basic Computer/IT QUESTION #2606
Question 1
Which of the following binary numbers is VALID? (Remember: binary uses only 0s and 1s)
  • 10293
  • 11012
  • 10110✔️
  • 20101
Correct Answer Explanation
The binary (base-2) system uses ONLY digits 0 and 1. '10110' contains only 0s and 1s, making it valid binary. '10293' contains 2, 3, and 9; '11012' contains 2; '20101' contains 2 — all invalid in binary.