UGC NET Questions (Paper – 1)

Statement C is the only wrong statement because it reverses the speed relationship between cache memory and hard disks. Cache memory is much faster and is used to speed up access to frequently used data. Statements A, B and D correctly describe RAM as volatile, ROM as non-volatile and secondary storage as including hard disks, SSDs and optical media. Hence, the correct answer is the option that selects only C as wrong.

Option A:
Option A is incorrect because it groups A and C as wrong statements. Statement A is actually true, as RAM is volatile primary memory storing currently active data and programs. Including a true statement as wrong makes this option conceptually flawed.

Option B:
Option B is incorrect because it treats B and C as wrong statements. While statement C is wrong, statement B correctly describes ROM as non-volatile memory. Combining a true statement with a false one in the wrong set does not satisfy the question.

Option C:
Option C is incorrect because it labels A, B and C as wrong. Both A and B correctly describe properties of RAM and ROM, and only C is incorrect. Since this option misclassifies true statements, it cannot be accepted.

Option D:
Option D is correct because it isolates statement C as the only wrong statement. It recognises that cache is actually faster than hard disks and therefore corrects the misleading comparison in the statement. By acknowledging A, B and D as correct, this option matches the logic of the question.