With the help of a suitable diagrams wherever required, explain the role of layer 2, keeping in view of the services it provides at the sender and the receiver end. Note: You need to take describe the concepts related to layer 2 as a whole.
computer science
Description
Q1. With the help of a suitable diagrams wherever required, explain the role of layer 2, keeping in view of the services it provides at the sender and the receiver end. Note: You need to take describe the concepts related to layer 2 as a whole. [10 marks ]
Q2. An organization namely LPU was using class full addressing but shifted to classless addressing, provide the 2 appropriate reasons with justification. [2 marks]
Q3. If a router forwards the packets to another router which is not a destination, but one of the paths in the route, what can we call this and why? [2 marks]
Q4. Suppose block 34 of LPU forwarded a packet to the speaker node of block 51, and the packet was rejected by 51 block, what could be the possible reasons for rejection? [2 marks]
Q5. Suppose LPU is using 12.67.88.10 network, is this representation correct? If yes then how? If not then what is the correct representation? [2 marks]
Q6. Suppose one of the hosts of block 33 of LPU is using 128.17.19.11 address and wants to communicate with host of block 38 that uses FF10::FF67, how can the communication be successful? [2 marks]
Q7. Do you think dynamic routing is always better? Justify your answer. [2 marks]
Q8. What is the role of a speaker node? What if speaker node is not present, can you suggest any solution? [2 marks]
Q9. Suppose you need to design a dynamic routing algorithm, which parameters you will take into consideration and why? [2 marks]
Q10. Use Dijktra’s algorithm to find the shortest path tree and forwarding tables for each node in the Fig (a)
