Memory and Storage Devices MCQs
Practice Memory and Storage Devices MCQs with answers and detailed explanations covering RAM, ROM, cache memory, hard disk, SSD, CD/DVD, pen drive and memory units frequently asked in computer awareness exams.
Question #1
Report Error
Which of the following memory types has the fastest access time in a computer system hierarchy?
Correct Answer: Option B
Explanation:
CPU registers are located inside the processor itself and have the fastest access time, followed by cache memory, main memory, and secondary storage.
CPU registers are located inside the processor itself and have the fastest access time, followed by cache memory, main memory, and secondary storage.
This question belongs to:
Computer
Memory and Storage Devices
Question #2
Report Error
What is the correct full form of EEPROM?
Correct Answer: Option D
Explanation:
EEPROM stands for Electrically Erasable Programmable Read-Only Memory. It can be erased and reprogrammed using an electrical charge.
EEPROM stands for Electrically Erasable Programmable Read-Only Memory. It can be erased and reprogrammed using an electrical charge.
This question belongs to:
Computer
Memory and Storage Devices
Question #3
Report Error
Which of the following units is the largest in terms of data storage capacity?
Correct Answer: Option A
Explanation:
Among the options, Yottabyte (YB) is the largest. The order is Terabyte < Petabyte < Exabyte < Yottabyte.
Among the options, Yottabyte (YB) is the largest. The order is Terabyte < Petabyte < Exabyte < Yottabyte.
This question belongs to:
Computer
Memory and Storage Devices
Question #4
Report Error
Which type of RAM needs to be constantly refreshed thousands of times per second to retain data?
Correct Answer: Option A
Explanation:
Dynamic RAM (DRAM) stores data in capacitors which lose charge over time, hence it requires continuous refreshing to maintain data integrity.
Dynamic RAM (DRAM) stores data in capacitors which lose charge over time, hence it requires continuous refreshing to maintain data integrity.
This question belongs to:
Computer
Memory and Storage Devices
Question #5
Report Error
A standard double-layer DVD can store approximately how much data?
Correct Answer: Option B
Explanation:
A standard single-layer DVD stores 4.7 GB, while a dual-layer or double-layer DVD can store up to 8.5 GB of data.
A standard single-layer DVD stores 4.7 GB, while a dual-layer or double-layer DVD can store up to 8.5 GB of data.
This question belongs to:
Computer
Memory and Storage Devices
Question #6
Report Error
Which type of cache memory is typically built directly into the processor chip itself and is the fastest among all cache layers?
Correct Answer: Option A
Explanation:
L1 cache (Level 1) is the closest and fastest memory layer integrated directly inside the CPU core.
L1 cache (Level 1) is the closest and fastest memory layer integrated directly inside the CPU core.
This question belongs to:
Computer
Memory and Storage Devices
Question #7
Report Error
Which statement is true regarding Solid State Drives (SSDs) compared to Hard Disk Drives (HDDs)?
Correct Answer: Option B
Explanation:
SSDs use non-volatile flash memory, have no moving parts, and deliver significantly higher read/write speeds compared to traditional HDDs.
SSDs use non-volatile flash memory, have no moving parts, and deliver significantly higher read/write speeds compared to traditional HDDs.
This question belongs to:
Computer
Memory and Storage Devices
Question #8
Report Error
How many bytes are there in one Megabyte (MB) when calculated using binary measurement standard?
Correct Answer: Option B
Explanation:
In binary notation, 1 KB = 1024 Bytes, and 1 MB = 1024 KB. Therefore, 1024 * 1024 = 1,048,576 Bytes.
In binary notation, 1 KB = 1024 Bytes, and 1 MB = 1024 KB. Therefore, 1024 * 1024 = 1,048,576 Bytes.
This question belongs to:
Computer
Memory and Storage Devices
Question #9
Report Error
Which computer memory is used to store the bootstrap loader program that initializes the system when powered on?
Correct Answer: Option A
Explanation:
The BIOS/bootstrap loader is stored in non-volatile ROM (Read-Only Memory) so it is retained even when the computer is turned off.
The BIOS/bootstrap loader is stored in non-volatile ROM (Read-Only Memory) so it is retained even when the computer is turned off.
This question belongs to:
Computer
Memory and Storage Devices
Question #10
Report Error
What technology is used in pen drives (USB flash drives) to retain data without a power source?
Correct Answer: Option B
Explanation:
Pen drives use NAND flash memory, which is a type of electrically erasable programmable read-only memory (EEPROM) that functions without moving parts.
Pen drives use NAND flash memory, which is a type of electrically erasable programmable read-only memory (EEPROM) that functions without moving parts.
This question belongs to:
Computer
Memory and Storage Devices
