make cards abt memory and data

Question 1

What is the definition of memory in the context of computing?

Answer 1

Memory in computing refers to the hardware devices that store data temporarily or permanently for processing by the CPU.

Question 2

True or False: RAM is a type of non-volatile memory.

Answer 2

False

Question 3

What does RAM stand for?

Answer 3

Random Access Memory

Question 4

Fill in the blank: The primary function of memory is to store ______.

Answer 4

data

Question 5

Which type of memory is faster: RAM or hard disk?

Answer 5

RAM

Question 6

What is the main purpose of cache memory?

Answer 6

To speed up the access to frequently used data and instructions.

Question 7

True or False: Flash memory is a type of volatile memory.

Answer 7

False

Question 8

What is the difference between volatile and non-volatile memory?

Answer 8

Volatile memory loses its data when the power is turned off, while non-volatile memory retains data without power.

Question 9

Multiple choice: Which of the following is an example of non-volatile memory? A) RAM B) Cache C) SSD D) Register

Answer 9

C) SSD

Question 10

What does SSD stand for?

Answer 10

Solid State Drive

Question 11

Fill in the blank: The CPU communicates with memory through the ______.

Answer 11

memory bus

Question 12

True or False: The larger the RAM, the more applications can run simultaneously.

Answer 12

True

Question 13

What is the role of virtual memory?

Answer 13

To extend the apparent amount of RAM by using disk space to simulate additional memory.

Question 14

Multiple choice: Which type of memory is typically the slowest? A) Cache B) RAM C) Hard Disk D) Flash Memory

Answer 14

C) Hard Disk

Question 15

What is the primary use of ROM?

Answer 15

To store firmware and system software that does not change frequently.

Question 16

True or False: Data stored in ROM can be easily modified.

Answer 16

False

Question 17

What does EEPROM stand for?

Answer 17

Electrically Erasable Programmable Read-Only Memory

Question 18

Fill in the blank: The speed of memory affects the overall ______ of a computer system.

Answer 18

performance

Question 19

What is a memory leak?

Answer 19

A situation where a program consumes memory without releasing it back to the system, leading to reduced performance.

Question 20

Multiple choice: Which memory type is often used in mobile devices? A) HDD B) RAM C) Flash D) Cache

Answer 20

C) Flash

Question 21

What is the function of memory management in an operating system?

Answer 21

To allocate and manage memory resources for applications and processes.

Question 22

True or False: The term ‘data’ refers only to numerical information.

Answer 22

False

Question 23

What is the difference between data and information?

Answer 23

Data is raw facts and figures, while information is processed data that is meaningful.

Question 24

Fill in the blank: Data can be classified into ______ and ______ types.

Answer 24

qualitative, quantitative

Question 25

What is the purpose of data compression?

Answer 25

To reduce the size of data for storage or transmission purposes.

Question 26

Multiple choice: Which of the following is a lossless compression method? A) JPEG B) PNG C) MP3 D) MPEG

Answer 26

B) PNG

Question 27

True or False: Data integrity refers to the accuracy and consistency of data over its lifecycle.

Answer 27

True

Question 28

What is metadata?

Answer 28

Data that provides information about other data.

Question 29

Fill in the blank: A database is an organized collection of ______.

Answer 29

data

Question 30

What is the purpose of a primary key in a database?

Answer 30

To uniquely identify each record in a database table.

Question 31

Multiple choice: Which of the following is a relational database management system (RDBMS)? A) MongoDB B) MySQL C) Redis D) Cassandra

Answer 31

B) MySQL

Question 32

True or False: Data redundancy is the duplication of data in a database.

Answer 32

True

Question 33

What is normalization in the context of databases?

Answer 33

The process of organizing data to reduce redundancy and improve data integrity.

Question 34

Fill in the blank: A ______ is a collection of related data stored in a database.

Answer 34

table

Question 35

What is SQL used for?

Answer 35

Structured Query Language (SQL) is used for managing and manipulating relational databases.

Question 36

Multiple choice: Which SQL command is used to retrieve data from a database? A) INSERT B) UPDATE C) SELECT D) DELETE

Answer 36

C) SELECT

Question 37

True or False: Data mining involves analyzing large datasets to discover patterns and relationships.

Answer 37

True

Question 38

What is big data?

Answer 38

Extremely large datasets that may be analyzed computationally to reveal patterns, trends, and associations.

Question 39

Fill in the blank: The three Vs of big data are Volume, Velocity, and ______.

Answer 39

Variety

Question 40

What is the purpose of data visualization?

Answer 40

To represent data graphically to make it easier to understand and interpret.

Question 41

Multiple choice: Which of the following tools is commonly used for data visualization? A) Excel B) SQL C) Python D) All of the above

Answer 41

D) All of the above

Question 42

True or False: Data security is only concerned with protecting data from unauthorized access.

Answer 42

False

Question 43

What is encryption?

Answer 43

The process of converting data into a coded format to prevent unauthorized access.

Question 44

Fill in the blank: A ______ is an organized collection of data that can be easily accessed, managed, and updated.

Answer 44

database