[3] Question 1 (10 Marks) a) Give the names of the layers of the OSI standard that address the following issues: Handling of bit errors: Treatment of lost packet: Data Conversation: Modulation and interfacing with the physical transmission medium: Routing the data via the best physical path: Process to process delivery: . . b) Can an IP packet stay indefinitely in the internet? Justify your answer. [1] c) Give two advantages of static routing over dynamic routing. When it is preferable to use static routing instead of dynamic? [2] d) What is a Routing Algorithm in the context of Computer Networks? What are the two classes of routing protocols? Give two examples of Routing protocols. [2] e) What are the contents of a DNS request and a DNS response? [2]