Question1. Write down the name of three popular electronic mail access protocols.
Question2. What do you understand by the term DNS?
Question3. Why does DNS employ a distributed approach as opposed to a single server?
Question4. HTTP supports both persistent and non-persistent connections.
Question5. Explain each type of connection and describe which HTTP protocol version supports each type?
Quetsion6. How and where is the type of connection specified in HTTP protocol?
Question7. Suppose that a new application layer protocol is developed for video conferencing application. Which transport layer protocol do you think will be employed and why?
Question8. FTP is said to have an “out-of-band” connection. Describe what it means?