What term is used to describe storing web pages files on a server for transmission to web browsers?
- Caching
- Buffering
- Routing
- Hosting
Which protocol is commonly used for secure transmission of web pages?
- HTTP
- FTP
- HTTPS
- FTPS
What is a computer network?
- A single computer system
- A group of interconnected computers
- A software application
- An input device
What is the purpose of a firewall in a computer network?
- To enhance network speed
- To prevent unauthorised access and protect against threats
- To manage file sharing
- To control the power supply to network devices
Which connection type usually has the highest bandwidth?
- Wired Ethernet
- Fibre optic cables
- Wi-Fi
- 5G
Which of the following is a correct statement about "encryption"?
- Encrypted data cannot be read by anyone without the key
- Asymmetric encryption requires public and private keys
- A private key is distributed to any device which requests it
- Asymmetric encryption requires sender and recipient to have the same key
Which of the following is a disadvantage of the client-server model?
- Security can be managed centrally
- The server is a single point of failure
- Simultaneous software updates
- centralised backups
When discussing the concept of layers, which of the following is not true?
- Each layer has a specific task
- Developers can alter a layer without affecting other layers
- TCP/IP is an example of a layered protocol
- Each layer has several purposes
In a client-server network, what is a typical role of a client?
- Managing network resources
- Providing services to other clients
- Requesting and using resources from the server
- Controlling network traffic
Which network topology is shown below?
- Bus
- Ring
- Star
- Mesh
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