What are the functions of nodes and links in a computer network?

When responding to a technical question, the format you should use is to first define the term, process, or procedure the interviewer is asking you about. You then answer their question, which in this case is about the functions of these elements of a network. Keep your answer brief and to the point and anticipate a follow-up question from the interviewer.

"Any device used to communicate information across the network is defined as a node. The connections between the nodes, consisting of some type of cable or wireless technology and switches and routing devices used to direct the traffic, are known as links. The nodes allow users to connect, share information and provide access to network devices. The links carry the information across the network, directing it to the correct node in expediting it through intelligent switching and routing. Taken together, nodes and links are the backbone of any Computer Network."