Which of the following is a type of memory that can be written to and read from, but loses data when power is off? MCQ with Answer and Explanation

Which of the following is a type of memory that can be written to and read from, but loses data when power is off?
A. RAM
B. ROM
C. EEPROM
D. Flash memory
Answer: Option A
Solution (By JKSSB Mock Tests)
RAM is volatile; it can be read and written, but contents are lost when power is turned off. EEPROM, flash, and ROM are non-volatile.

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Practice More Memory and Storage Devices Questions

Question #1
What is the purpose of a memory parity bit?
A. To double the memory speed
B. To increase memory capacity
C. To detect errors in data storage or transmission
D. To encrypt data

Correct Answer: Option C


Explanation:
A parity bit is an extra bit added to data to detect errors (single-bit errors) in memory. It is used in some RAM modules for error detection.

This question belongs to: Computer Memory and Storage Devices
Question #2
What does the term 'DDR4' indicate about a memory module?
A. It is the fourth generation of Double Data Rate memory
B. It stands for Digital Data Register 4
C. It has four data rate channels
D. It is a type of ROM

Correct Answer: Option A


Explanation:
DDR4 is the fourth generation of Double Data Rate (DDR) SDRAM, offering higher speeds, lower voltage, and increased density compared to DDR3.

This question belongs to: Computer Memory and Storage Devices
Question #3
Which of the following memory units is the largest?
A. Gigabyte
B. Terabyte
C. Megabyte
D. Kilobyte

Correct Answer: Option B


Explanation:
A terabyte (TB) is larger than a gigabyte (GB), which is larger than a megabyte (MB), which is larger than a kilobyte (KB). Specifically, 1 TB = 1024 GB.

This question belongs to: Computer Memory and Storage Devices