📊 MS Dos
Q. What is the default file extension for backup files in MS-DOS?
  • (A) .BAK
  • (B) .TMP
  • (C) .BKP
  • (D) .BK
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✅ Correct Answer: (A) .BAK

Explanation: .BAK is commonly used as the default extension for backup files.

Explanation by: Mr. Dubey
.BAK is commonly used as the default extension for backup files.

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