3.5 Fundamentals of Computer Networks Archives

Protocol Layers (3 marks)

Identify the layer at which each of the following protocols operates: a) HTTPS b) TCP c) IP

Explain MAC address filtering and when it might be used as a security method.

How can authentication, encryption, firewalls, and MAC address filtering be integrated to provide comprehensive network security?

Describe encryption and give an example of how it contributes to network security.

What is a firewall, and how has its use evolved to enhance network security?

Compare and contrast the Transmission Control Protocol (TCP) and the User Datagram Protocol (UDP).

Describe the purpose of HTTPS and how it differs from HTTP.

Explain the purpose of FTP, SMTP, and IMAP in the context of network protocols.

Why is network security crucial in modern computer networks?

Explain what authentication is and provide an example of when it would be used in a network.