1.3 – Computer Networks, Connections and Protocols

Explain the four-layer TCP/IP model used in networking. Describe each layer and its primary function.

Describe the purpose and key features of the following protocols: a) HTTP b) HTTPS c) SMTP

Explain the concept of a standard in computing and why it is important for hardware and software from different manufacturers to adhere to recognised standards. Your answer should include specific examples of how standards facilitate compatibility.

What is a MAC address and how is it used in a network?

Describe the format of IPv4 addresses and explain the differences between IPv4 and IPv6 addressing. Why is IPv6 increasingly important?

Explain how encryption can secure data transmitted over a network. Include an example of a situation where encryption is crucial.

A small business with one office building and five employees is looking to set up a network that allows them to share resources efficiently. Recommend the type of network connection (wired or wireless) they should implement and provide 2 justifications for your recommendation, based on their needs.

Discuss a benefit and drawback of using wired connections compared to wireless connections in a school environment.