UGC NET Questions (Paper – 1)

Random Access Memory loses its contents when the power is switched off, which is why users must save their work before shutting down. This characteristic of data disappearing without power is called volatility. RAM is therefore known as volatile memory.

Option A:
Option A is correct because volatile memory refers precisely to storage that requires continuous power to retain information, which is true for RAM.

Option B:
Option B, optical, refers to storage media using lasers, such as CDs or DVDs, not to the temporary main memory used during processing.

Option C:
Option C, permanent, would describe non volatile storage like ROM or hard disks, which retain data without power.

Option D:
Option D, magnetic, indicates a particular recording technology used in some storage devices and is not a descriptor of volatility.