GCSE Revision COMPUTER SCIENCE (FUN)

What is the main purpose of computer networks?

• A) To connect multiple devices to share data and resources

• B) To allow remote access to the computer

• C) To increase the speed of data processing

• D) To enable multiple users to access a single device

What is the difference between a LAN and a WAN?

• A) LANs are faster, WANs are slower

• B) LANs cover a small area, WANs cover a large area

• C) LANs are used for home networks, WANs are used for enterprise networks

• D) LANs are more secure, WANs are less secure

What is the purpose of routers in computer networks?

• A) To determine the best path for data to travel

• B) To store data in transit

• C) To encrypt data

• D) To increase the speed of data transmission

What is an IP address?

• A) A unique identifier for a computer or device on a network

• B) A type of encryption used to secure data

• C) A measure of the speed of a network

• D) A type of software used for network management

What is the purpose of a firewall in a computer network?

• A) To control access to network resources

• B) To encrypt data in transit

• C) To increase the speed of data transmission

• D) To protect the network from external threats

What is a packet in computer networking?

• A) A type of data storage device

• B) A unit of data that is transmitted across a network

• C) A type of software used for network management

• D) A type of encryption used to secure data

What is the difference between a client and a server in a computer network?

• A) Clients are used for data storage, servers are used for data processing

• B) Clients initiate requests, servers provide resources

• C) Clients are used for data transmission, servers are used for data encryption

• D) Clients are used for data backup, servers are used for data retrieval

What is the purpose of the Transmission Control Protocol (TCP) in computer networking?

• A) To ensure that data is transmitted reliably and in the correct order

• B) To encrypt data in transit

• C) To increase the speed of data transmission

• D) To control access to network resources

What is a variable in computer programming?

• a. A piece of data that can change within a program

• b. A function that performs a calculation

• c. A loop that repeats a section of code

• d. An event that triggers a specific action

What is computational thinking?

• a. The ability to write code quickly

• b. The process of designing solutions to problems by breaking them down into smaller parts

• c. The use of algorithms to perform calculations

• d. The ability to use software effectively