Re take (best one )

Question 1

Network Switch

Answer 1

Joins computers together on a LAN. Receives and sends packets.

Question 2

Foreign Key

Answer 2

A field that links to a primary key in a second table.

Question 3

Referential Integrity

Answer 3

When database relationships are consistent.

Question 4

Multicore Processor

Answer 4

More than one processing unit in a single processor, which can process instructions at the same time.

Question 5

IP Protocol

Answer 5

To route data

Question 6

which type of data structure is a Linked List

Answer 6

Dynamic data structure.

Question 7

OOP (Object-Oriented Programming)

Answer 7

Focuses on reusability and easy update of code.

Question 8

Link Layer

Answer 8

Responsible for the transmission of data between two nodes over a physical connection

Question 9

CU (Control Unit)

Answer 9

Sends out control signals to other parts of the CPU

Question 10

PC (Program Counter)

Answer 10

Holds the address in memory of the next instruction

Question 11

MAR (Memory Address Register)

Answer 11

Stores the address of the data that needs to be fetched from memory

Question 12

MDR (Memory Data Register)

Answer 12

Stores the data that has been fetched from main memory

Question 13

CIR (Current Instruction Register)

Answer 13

Stores the most recent instruction waiting to be decoded or executed

Question 14

what happens in the Fetch stage(mention registers)

Answer 14

The PC copies the address of the next instruction into the MAR

Question 15

Decode

Answer 15

The CU decodes the instruction

Question 16

Execute

Answer 16

The CPU executes the instructions within the CIR

Question 17

CISC (Complex Instruction Set Computer)

Answer 17

Supports more instructions, requiring more power and generating more heat

Question 18

RISC (Reduced Instruction Set Computer)

Answer 18

Supports fewer instructions, requiring less power and generating less heat

Question 19

GPU (Graphics Processing Unit)

Answer 19

An example of an array processor, used for parallel processing and tasks like breaking passwords

Question 20

Parallel Processing

Answer 20

Simultaneous processing of data

Question 21

SIMD (Single Instruction, Multiple Data)

Answer 21

Array processing where the same instruction is carried out on multiple data

Question 22

MIMD (Multiple Instruction, Multiple Data)

Answer 22

Multicore processing where different instructions are carried out concurrently on different data

Question 23

Flat File

Answer 23

A database storage where all the data is stored in one large table, with advantages in easy setup but redundant data

Question 24

OCR (Optical Character Recognition)

Answer 24

Technology for converting printed or handwritten text into machine-readable data

Question 25

DBMS (Database Management System)

Answer 25

Software that enforces data integrity rules, provides secure access, and encryption for databases

Question 26

2NF (Second Normal Form)

Answer 26

A database normalization level where there are no partial dependencies

Question 27

3NF (Third Normal Form)

Answer 27

A database normalization level where all fields are dependent only on the primary key

Question 28

SQL (Structured Query Language)

Answer 28

A language for managing and manipulating relational databases, with SELECT, WHERE, and JOIN statements

Question 29

Transaction

Answer 29

A change or set of changes made to a database

Question 30

Atomicity

Answer 30

Ensures a transaction is fully completed or not at all

Question 31

Consistency

Answer 31

Requires any change to follow the referential integrity rules

Question 32

Isolation

Answer 32

Ensures one change to the database does not interfere with another

Question 33

Durability

Answer 33

Requires a transaction to be saved permanently in the database

Question 34

Data Integrity

Answer 34

Refers to the accuracy and reliability of data

Question 35

Redundancy

Answer 35

When a database is cloned and operates concurrently with the original database

Question 36

NIC (Network Interface Card)

Answer 36

Enables a computer to be connected to a network

Question 37

Router

Answer 37

Connects different networks together

Question 38

Standard

Answer 38

A formalized protocol accepted by most parties implementing it

Question 39

TCP (Transmission Control Protocol)

Answer 39

Used to ensure error-free transmission

Question 40

IP (Internet Protocol)

Answer 40

Used to transfer packets across the internet between routers

Question 41

DNS (Domain Name System)

Answer 41

Used to name and organize internet resources, matching URLs to IP addresses

Question 42

Firewalls

Answer 42

Monitor and filter data going into and out of a network

Question 43

Proxies

Answer 43

Computers interposed between a network and a remote resource

Question 44

Disadvantages of Peer-to-Peer

Answer 44

Lack of accessibility when a peer goes offline and difficulty in centrally updating software

Question 45

Computers in the Workforce

Answer 45

Employees may be subject to monitoring to assess productivity

Question 46

Automated Decision Making

Answer 46

Computers use algorithms to make decisions, dependent on accurate data and quality algorithms

Question 47

AI (Artificial Intelligence)

Answer 47

Can perform repetitive or hazardous jobs but may lead to job displacement for humans

Question 48

Environmental Issues

Answer 48

Cryptocurrency mining consumes large amounts of electricity, but electronic communication reduces paper and fuel usage for remote work

Question 49

Censorship

Answer 49

Authorities limiting people’s access to information