The Internet: AQA Computer Science A Level: Section 10

What is the primary purpose of the Internet?

• To facilitate local network communications

• To provide a secure platform for government agencies

• To connect millions of networks globally

• To store and manage large datasets

Which TCP/IP protocol stack layer is primarily responsible for routing and forwarding data between different networks?

• Application layer

• Transport layer

• Network layer

• Data Link layer

In packet switching, data is divided into small packets for transmission and end-to-end connection is established. Which layer manages this process?

• Transport layer

• Data Link layer

• Network layer

• Physical layer

What is the primary function of a router in Internet communication?

• To establish secure VPN connections

• To translate domain names into IP addresses

• To route data between different networks

• To encrypt data for secure transmission

Which protocol is responsible for ensuring reliable data delivery over the Internet?

• HTTP

• UDP

• FTP

• TCP

What does TCP/IP stand for?

• Technical Control Protocol/Internet Process

• Transmission Control Protocol/Internet Protocol

• Topological Control Protocol/Internet Protocol

• The Internet's Main Server

Which of the following is NOT a standard application layer protocol?

• HTTP

• SMTP

• FTP

• LAN

What is the primary role of an IP address?

• To identify a specific website

• To identify a specific device on a network

• To determine Internet speed

• To protect against cyberattacks

What entity makes requests for services or resources in the client-server model?

• Client

• Server

• Router

• Internet Service Provider (ISP)

What is the primary purpose of DNS (Domain Name System)?

• To encrypt data transmission

• To manage network routers

• To convert domain names into IP addresses

• To establish secure VPN connections