Anil has decided to use either a DVD-RW or a DVD-R. Which of the following statements are true about these storage devices?

1.Both DVD-R and DVD-RW are read only.

2.A DVD-R can be written to only once.

3.A DVD-RW can be written to many times.

4.Both DVD-R and DVD-RW can be written to only once.

A1 and 4 only

B2 and 3 only ✓ Correct

C1 and 2 only

D4 only

Correct answer: (B) 2 and 3 only

Explanation

A DVD-R can be written once while a DVD-RW can be rewritten many times, so those two statements form the true pair.

Statement 2 correctly says a DVD-R accepts data only a single time.

Statement 3 correctly says a DVD-RW can be recorded and erased repeatedly.

Statement 1 is false, since neither disc is read-only; both can be written by the user.

Statement 4 is false, because a DVD-RW is not limited to a single write.

The R marks a write-once recordable disc while RW marks a rewritable one.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.