Question

When a RAM module passes the checker board test it is ______________

(a) Able to read and write only 0s

(b) Faulty

(c) Probably good

(d) Able to read and write only 1s

The question was posed to me in examination.

My doubt stems from Erasable Programmable Read Only Memory in section Memory Devices of Digital Circuits

Answer 1

Correct choice is (c) Probably good

To explain I would say: When a RAM module passes the checker board test it is probably good. It is a volatile memory. Thus, RAM stores the data as long as it is powered on and once the power goes out, it loses its data.