AQA Computer Science A-Level: Networks Quiz

What is the primary function of a router in a network?

• To provide wireless connectivity

• To connect multiple networks and route network traffic

• To store data for network users

• To manage the security of a network

Which of the following is a characteristic of a peer-to-peer network?

• Centralized security management

• Scalability for very large networks

• Direct data exchange between devices

• High dependency on a server

What does the term "bandwidth" refer to in networking?

• The amount of data that can be stored on a network

• The speed at which data is transmitted over a network

• The physical width of the network cables

• The security level of a network

Which layer of the OSI model is responsible for translating network addresses into their physical counterparts?

• Application Layer

• Presentation Layer

• Network Layer

• Data Link Layer

What is the primary purpose of the TCP/IP model?

• To provide a set of rules for creating web pages

• To ensure secure data transmission over the internet

• To provide a standard for how data is transmitted over the internet

• To manage the power consumption of networking devices

Which of the following is an example of an application layer protocol in the OSI model?

• Ethernet

• TCP

• HTTP

• IP

What is the function of a switch in a computer network?

• To connect a device to the internet

• To route data between different networks

• To connect multiple devices on the same network and filter traffic

• To provide a firewall and security services

What does NAT (Network Address Translation) allow a router to do?

• Increase the speed of the network

• Convert between protocols like TCP and UDP

• Allow multiple devices to share a single IP address

• Provide encryption for data packets

In networking, what is a subnet mask used for?

• To identify the network portion of an IP address

• To encrypt data packets

• To increase the speed of data transmission

• To identify the device portion of an IP address

Which of the following best describes the function of the DHCP (Dynamic Host Configuration Protocol)?

• It encrypts data packets for secure transmission.

• It assigns static IP addresses to devices on a network.

• It dynamically assigns IP addresses to devices on a network.

• It routes data packets between different networks.