memory and storage

Question 1

Define memory in computer science.

Answer 1

The component that stores data temporarily for quick access by the CPU.

Question 2

What is RAM?

Answer 2

Random Access Memory, a type of volatile memory used for temporary storage.

Question 3

True or false: ROM is non-volatile memory.

Answer 3

TRUE

ROM retains data even when the power is off.

Question 4

Fill in the blank: Secondary storage is _______ than primary storage.

Answer 4

slower

Question 5

What does SSD stand for?

Answer 5

Solid State Drive, a type of storage that uses flash memory.

Question 6

Define volatile memory.

Answer 6

Memory that loses its content when power is turned off.

Question 7

What is the purpose of cache memory?

Answer 7

To store frequently accessed data for faster retrieval by the CPU.

Question 8

True or false: Flash memory is a type of non-volatile storage.

Answer 8

TRUE

Commonly used in USB drives and SSDs.

Question 9

Fill in the blank: Magnetic disks use _______ to store data.

Answer 9

magnetic fields

Question 10

What is virtual memory?

Answer 10

A memory management technique that uses disk space to extend RAM.

Question 11

Define storage capacity.

Answer 11

The maximum amount of data that a storage device can hold.

Question 12

What is the main advantage of SSD over HDD?

Answer 12

Faster data access speeds and lower latency.

Question 13

True or false: HDD stands for Hard Disk Drive.

Answer 13

TRUE

Question 14

Fill in the blank: Data redundancy helps ensure _______ in storage.

Answer 14

data integrity

Question 15

What is the role of BIOS in memory?

Answer 15

To initialize hardware during the boot process and manage data flow.

Question 16

Define data transfer rate.

Answer 16

The speed at which data is read from or written to a storage device.

Question 17

What is cloud storage?

Answer 17

Storing data on remote servers accessed via the internet.

Question 18

True or false: Optical discs use lasers to read and write data.

Answer 18

TRUE

Examples include CDs, DVDs, and Blu-rays.

Question 19

Fill in the blank: Data compression reduces the _______ of files.

Answer 19

size

Question 20

What is the function of memory management?

Answer 20

To control and coordinate computer memory usage.

Question 21

Define data retrieval.

Answer 21

The process of accessing and retrieving stored data from a storage device.

Question 22

What is access time?

Answer 22

The time taken to read data from or write data to a storage device.

Question 23

True or false: Read-only memory can be modified.

Answer 23

FALSE

ROM is typically not writable after manufacturing.

Question 24

Fill in the blank: Data backup is essential for _______ data loss.

Answer 24

preventing

Question 25

What does **NAND flash** refer to?

Answer 25

A type of flash memory used in SSDs and USB drives.

Question 26

Define **file system**.

Answer 26

The method and structure used to store and organize files on a storage device.

Question 27

What is the difference between **sequential** and **random access**?

Answer 27

Sequential access reads data in order, while random access can read any data directly.

Question 28

True or false: **Data encryption** secures data by converting it into a coded format.

Answer 28

TRUE

Question 29

Fill in the blank: **Solid State Drives** have no _______.

Answer 29

moving parts

Question 30

What is **data integrity**?

Answer 30

The accuracy and consistency of stored data over its lifecycle.

Question 31

Define **primary storage**.

Answer 31

The main storage area for data that the CPU accesses directly, like RAM.

Question 32

What does **HDD** use to read and write data?

Answer 32

Magnetic platters and read/write heads.

Question 33

True or false: **Data fragmentation** can slow down access times.

Answer 33

TRUE

Question 34

Fill in the blank: **Data migration** involves moving data from one _______ to another.

Answer 34

storage system

Question 35

What is the purpose of **data deduplication**?

Answer 35

To eliminate duplicate copies of data to save storage space.

Question 36

Define **non-volatile memory**.

Answer 36

Memory that retains data even when the power is turned off.

Question 37

What does **RAID** stand for?

Answer 37

Redundant Array of Independent Disks, a data storage virtualization technology.

Question 38

True or false: **Cache memory** is slower than RAM.

Answer 38

FALSE ## Footnote Cache memory is faster than RAM.

Question 39

Fill in the blank: **Data loss** can occur due to _______ failures.

Answer 39

hardware

Question 40

What is **data archiving**?

Answer 40

The process of moving data that is not actively used to a separate storage for long-term retention.

Question 41

Define **storage medium**.

Answer 41

The physical material on which data is stored, like disks or tapes.

Question 42

What is the **function of a hard drive**?

Answer 42

To store and retrieve digital information using magnetic storage.

Question 43

True or false: **Solid State Drives** are more durable than Hard Disk Drives.

Answer 43

TRUE

Question 44

Fill in the blank: **Data synchronization** ensures data is the same across _______.

Answer 44

multiple devices

Question 45

What does **data throughput** measure?

Answer 45

The amount of data processed in a given time period.

Question 46

Define **data lifecycle management**.

Answer 46

The process of managing data from creation to deletion.

Question 47

What is the role of **disk defragmentation**?

Answer 47

To reorganize fragmented data on a disk for improved performance.

Question 48

True or false: **Optical storage** is less durable than magnetic storage.

Answer 48

FALSE ## Footnote Optical storage can be more resistant to environmental factors.

Question 49

Fill in the blank: **Data governance** involves managing the _______ of data.

Answer 49

availability

Question 50

What is **data visualization**?

Answer 50

The graphical representation of data to identify trends and insights.

Question 51

Define **data retention policy**.

Answer 51

A policy that defines how long data should be kept and when it should be deleted.

Question 52

What does **SATA** stand for?

Answer 52

Serial Advanced Technology Attachment, an interface for connecting storage devices.

Question 53

True or false: **Data mining** is used to extract patterns from large datasets.

Answer 53

TRUE

Question 54

Fill in the blank: **Data loss prevention** strategies aim to protect data from _______.

Answer 54

unauthorized access

Question 55

What is **data classification**?

Answer 55

The process of organizing data into categories for easier management.

Question 56

Define **data compression algorithms**.

Answer 56

Methods used to reduce the size of data files for storage efficiency.

Question 57

What is the purpose of **data recovery**?

Answer 57

To restore lost or corrupted data from backup or recovery tools.

Question 58

True or false: **Data integrity checks** ensure data accuracy.

Answer 58

TRUE

Question 59

Fill in the blank: **Data warehousing** is used for _______ analysis.

Answer 59

business

Question 60

What does **USB** stand for?

Answer 60

Universal Serial Bus, a standard for connecting devices and transferring data.

Question 61

Define **data access control**.

Answer 61

The process of managing who can access and manipulate data.

Question 62

What is **data encryption** used for?

Answer 62

To protect sensitive information by converting it into a secure format.

Question 63

True or false: **Data breaches** can lead to loss of sensitive information.

Answer 63

TRUE

Question 64

Fill in the blank: **Data interoperability** allows data to be shared across _______.

Answer 64

different systems

Question 65

What is **data stewardship**?

Answer 65

The responsible management of data assets to ensure quality and compliance.

Question 66

Define **data governance framework**.

Answer 66

A structure that outlines how data is managed and protected within an organization.