Using an example, explain the distinctions between client/server and peer-to-peer architecture.

Design and describe an application-level protocol to be used between an automatic teller machine (ATM) and a bank's centralized computer. a) Your protocol should allow a user's card and password to be verified, the account balance (maintained at the centralized computer) to be queried, and an account withdrawal to be made. Your protocol entities should be able to handle the all- too-common case in which there is INSUFFICIENT BALANCE on the account to cover the withdrawal. Specify your protocol by listing the messages exchanged and the action taken by the ATM or the bank's centralized computer on transmission and receipt of messages. b) Sketch the operation of your protocol for the case of a simple withdrawal with no errors, using a diagram similar to that in Figure 1 below." c) Explicitly state the assumptions made by your protocol about the underlying end-to-end transport service. Page 4 of 5 P. T.O TCP connection request TCP connection reply OT Mtp://ww.awi.com/kurote-ross Got the…

Describe the concept of distributed transactions and the challenges they pose in distributed systems. How can two-phase commit (2PC) and three-phase commit (3PC) protocols address these challenges?

Describe the differences between the client-server and peer-to-peer architectures using an example.