Q. Which of the following is used for data backup?

  • (A) Cache
  • (B) CD/DVD
  • (C) RAM
  • (D) ALU
✅ Correct Answer: (B) CD/DVD
Explanation: CD/DVDs are used for storing backups or transferring data between systems.

Published by Mr. Dubey ⭐ 104.82K Points at 24-Jun-2025 06:41 am in Computer

Explanation by: Mr. Dubey
CD/DVDs are used for storing backups or transferring data between systems.

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