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Which of the following stores several gigabytes of data but usually lost when power failure?

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Which of the following stores several gigabytes of data but usually lost when power failure?

(a) Flash memory

(b) Disk

(c) Main memory

(d) Secondary memory

The question was posed to me during an interview.

This is a very interesting question from Physical Storage Media in division Storage and File Structures of Database Management

1 Answer

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Best answer
The correct choice is (c) Main memory

To explain: The contents of main memory are usually lost if a power failure or system crash occurs.

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