These are few question from past exams. The real exam will contain 12 - 16 such questions. The expectation is that for each question you will write a brief, to the point answer.

1. List the main differences between wireless LANs and personal area networks.
2. For each protocol layer of the Internet (application, transport, network, link, and physical) list possible places where it can be implemented (e.g., hardware, driver, operating system, application process).
3. Why does ARP require an underlying network that supports broadcasts?
4. What is the principal difference between connection-oriented and connectionless services? Describe the characteristics of applications best suited for both types of service.
5. Consider a 1500-byte packet sent over a 1 Gbps link and a 150-byte packet transmitted over a 100 Mbps link. Both links have latency 1 millisecond. Which packet will be delivered first?
6. Would it be possible to operate the Internet without DNS? Explain your answer.