AQA CS - SLR21 - Networking and the Internet

What is the structure of the Internet best described as?

• A global network of interconnected networks
• A single centralized network
• A private network of companies
• A network only for governments

What is the purpose of packet switching in networking?

• To efficiently send data by breaking it into packets and routing them independently
• To encrypt data during transmission
• To ensure all data packets follow the same route
• To verify the identity of the sender

Which of the following is a main component of a packet?

• Header
• Router
• Firewall
• Proxy

What is a router in networking?

• A device that forwards data packets between networks
• A server that hosts websites
• A tool for encrypting data
• A program for monitoring viruses

What is a gateway in networking?

• A device that connects two different network types
• A server that resolves domain names
• A component of a packet
• A method of encrypting data

How does routing work across the Internet?

• Routers forward packets based on their destination IP address
• Packets are broadcast to all devices until they reach their destination
• A central server determines the path for each packet
• All packets follow the same predefined route

What does a Uniform Resource Locator (URL) represent?

• The address of a resource on the Internet
• A type of encryption key
• The IP address of a server
• The name of a domain registrar

What is a Fully Qualified Domain Name (FQDN)?

• The complete domain name, including the host, domain, and top-level domain
• An IP address written in text form
• A domain name without a top-level domain
• A URL excluding the protocol

How are domain names organized?

• In a hierarchical structure
• In alphabetical order
• By IP address range
• By their length

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

• To translate domain names into IP addresses
• To encrypt data during transmission
• To act as a firewall for websites
• To host Internet registries