Q.1 Which of the following is a volatile memory?
ROM
RAM
Hard Disk
Flash Drive
Explanation - RAM (Random Access Memory) is volatile, meaning it loses its content when the power is turned off.
Correct answer is: RAM
Q.2 Which type of memory is used to store BIOS settings in a computer?
SRAM
DRAM
CMOS
Cache Memory
Explanation - CMOS (Complementary Metal-Oxide Semiconductor) memory stores BIOS settings and is powered by a small battery.
Correct answer is: CMOS
Q.3 Which storage device provides the fastest access speed?
HDD
SSD
CD-ROM
Magnetic Tape
Explanation - Solid State Drives (SSD) use flash memory and provide faster data access compared to mechanical HDDs or optical media.
Correct answer is: SSD
Q.4 What is the main difference between ROM and RAM?
ROM is volatile, RAM is non-volatile
ROM stores data permanently, RAM temporarily
ROM is faster than RAM
ROM is used for processing data
Explanation - ROM (Read Only Memory) retains data permanently, while RAM is temporary and loses data when power is off.
Correct answer is: ROM stores data permanently, RAM temporarily
Q.5 Which memory type is primarily used in cache memory?
DRAM
SRAM
Flash
EEPROM
Explanation - Static RAM (SRAM) is faster and used in cache memory for high-speed access.
Correct answer is: SRAM
Q.6 A memory chip that can be electrically erased and reprogrammed is called:
ROM
EPROM
RAM
Cache
Explanation - EPROM (Erasable Programmable Read-Only Memory) can be erased with UV light and reprogrammed electrically.
Correct answer is: EPROM
Q.7 Which of the following is a non-volatile storage device?
RAM
SSD
Cache
Registers
Explanation - SSD retains data even when the computer is turned off, making it non-volatile.
Correct answer is: SSD
Q.8 Which memory type is used for temporary storage during program execution?
ROM
RAM
SSD
Optical Disk
Explanation - RAM is used to hold data and instructions temporarily during program execution.
Correct answer is: RAM
Q.9 Which of the following is fastest in data transfer?
HDD
SSD
USB Flash Drive
CD-ROM
Explanation - SSDs have no moving parts and use flash memory, providing much higher transfer speeds than HDDs or optical media.
Correct answer is: SSD
Q.10 What does 'volatile memory' mean?
Memory that loses data when power is off
Memory that stores data permanently
Memory that cannot be read
Memory used in hard disks
Explanation - Volatile memory requires power to maintain stored data, such as RAM.
Correct answer is: Memory that loses data when power is off
Q.11 Which storage device is suitable for long-term archival of data?
HDD
RAM
Magnetic Tape
Cache Memory
Explanation - Magnetic tape is cost-effective for long-term storage and archival purposes.
Correct answer is: Magnetic Tape
Q.12 Which memory type is used for storing firmware?
ROM
RAM
Cache
Virtual Memory
Explanation - Firmware is stored in ROM because it contains permanent instructions for hardware initialization.
Correct answer is: ROM
Q.13 Which type of RAM loses data the fastest when power is off?
DRAM
SRAM
ROM
EEPROM
Explanation - DRAM needs constant refreshing and loses data quickly when power is removed, unlike SRAM.
Correct answer is: DRAM
Q.14 Which storage device uses optical technology to read/write data?
HDD
SSD
CD/DVD
RAM
Explanation - CDs and DVDs use lasers to read and write data optically.
Correct answer is: CD/DVD
Q.15 Which type of ROM can be programmed only once?
PROM
EPROM
EEPROM
DRAM
Explanation - PROM (Programmable ROM) can be programmed only once and is not erasable.
Correct answer is: PROM
Q.16 Which memory type is closest to the CPU for fastest access?
Cache
RAM
Hard Disk
SSD
Explanation - Cache memory is located on or near the CPU for faster access than main memory.
Correct answer is: Cache
Q.17 Which is the primary memory of a computer?
ROM
RAM
HDD
SSD
Explanation - Primary memory refers to RAM, which temporarily stores data and instructions during execution.
Correct answer is: RAM
Q.18 Flash memory is a type of:
Volatile memory
Non-volatile memory
Cache memory
Virtual memory
Explanation - Flash memory retains data without power, making it non-volatile.
Correct answer is: Non-volatile memory
Q.19 Which of the following is considered secondary storage?
RAM
ROM
Hard Disk
Cache Memory
Explanation - Secondary storage like hard disks store data permanently, unlike primary memory.
Correct answer is: Hard Disk
Q.20 Which type of storage device is portable and uses flash memory?
USB Drive
HDD
CD-ROM
RAM
Explanation - USB drives are portable and use flash memory for non-volatile storage.
Correct answer is: USB Drive
Q.21 Virtual memory is used when:
RAM is full
ROM is full
SSD is slow
Cache is empty
Explanation - Virtual memory allows the system to use a portion of secondary storage when RAM is insufficient.
Correct answer is: RAM is full
Q.22 Which memory type is read/write and non-volatile?
RAM
ROM
EEPROM
Cache
Explanation - EEPROM (Electrically Erasable Programmable ROM) can be read and written multiple times and is non-volatile.
Correct answer is: EEPROM
Q.23 Which of the following is an example of tertiary storage?
HDD
CD-ROM
Magnetic Tape Library
RAM
Explanation - Tertiary storage is used for backup and archival, like magnetic tape libraries.
Correct answer is: Magnetic Tape Library
Q.24 Which memory type is fastest but most expensive?
RAM
Cache
SSD
HDD
Explanation - Cache memory is the fastest memory type but is costly, so only a small amount is used.
Correct answer is: Cache
Q.25 Which of the following storage devices is magnetic in nature?
SSD
RAM
Hard Disk
USB Drive
Explanation - Hard disks store data magnetically on rotating platters.
Correct answer is: Hard Disk