Describe the OSI model and each of its layers.

"The OSI model is a reference model which defines how applications communicate across the network. This provides software and application developers with the parameters they need to use to ensure that their applications work effectively with others on the network. There are six layers within the OSI model. They include the physical layer, the data link layer, the network layer, the transport layer, the session layer, and finally, the presentation layer."

This question is easy to identify as a technical question since it asks you to describe a concept used in this role. As a reminder, technical questions are best answered briefly and to the point. This will encourage the interviewer to ask follow-up questions if they need more information and will also provide you the opportunity to demonstrate your knowledge and qualifications for the position.