Question
Which rewritable optical disc format allows users to erase and update data multiple times?
This question was previously asked in
RRB NTPC 2025 Graduate CBT 2 Question Paper PDF (10-Jul-2026) (Shift 1)
The correct answer is
Compact Disc-ReWritable
A Compact Disc-ReWritable (CD-RW) allows users to erase and rewrite data multiple times, unlike a standard CD-ROM.
The other listed terms are not real optical disc formats and do not correspond to any recognised rewritable disc technology.
Hence, Compact Disc-ReWritable is the correct answer.
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