JKSSB Sub Inspector of Police (JKPSI) 2022 — Q82 Solved Answer with Explanation

Question

What will happen to data in RAM (Random Access Memory) when power goes off and computer shuts down?

1. A. Data is stored permanently in RAM and the data will not get erased from the memory
2. B. Data is retrieved from backup registers when power is restored and activity resumes normally
3. C. Data stored in Random Access Memory is lost when power goes off and it will have to be recreated. (Correct answer)
4. D. Data is recovered from Disaster Recovery site (DR site) and operation is continued with little disturbance

Correct Answer

Option C — Data stored in Random Access Memory is lost when power goes off and it will have to be recreated.

Detailed Solution & Explanation

RAM (Random Access Memory) is a type of volatile memory -- it requires a constant supply of power to retain its data. When the computer is powered off or the power supply is interrupted, all data stored in RAM is immediately and permanently lost. This is why unsaved documents and open applications disappear when a computer unexpectedly shuts down. Permanent storage requires non-volatile memory such as a hard disk drive (HDD), solid-state drive (SSD), or ROM.