1. It has been said that flow control and congestion control are equivalent. Is this true for the Internet's connection-oriented service? Are the objectives of flow control and congestion control the same? ( 2 points) 2. What are the five layers in the Internet protocol stack? What are the principal responsibilities of each of these layers? (2 points) 3. Solve problem P7 on page 70 (2 points) 4. Solve problem P18 on page 72 (4 points) Note: For question (d), follow the below instructions i) For inter-continent (select any host in the state of Vermont in the US) ii) For intra-continent (choose any host from Australia) 5. Solve problems only (b), (d), and (e) of the P25 on pages 74 (3 points) 6. Solve problem P31 on pages 7546 except (e) (2 points)