云计算代写 | CMT202 Distributed and Cloud Computing

本次英国代写主要为分布式及云计算的限时测试

1 (a) Describe the difference between a distributed and a non-distributed computer system. [5]
(b) Describe a real world example of process replication in a distributed system. What are the
benefits of using process replication in this context? [5]
(c) A timing failure is a particular type of failure which can happen in a distributed system. Provide a
real world example of such a failure and in doing so explain the consequences of such a failure.
[5]
(d) Within the context of a client-server architecture, describe two benefits of having a thin client. [5]
2 (a) Provide an example of a distributed system which uses a client-server architecture. [5]
(b) Provide an example of a distributed system which uses a peer-to-peer (P2P) architecture. [5]
(c) Describe one benefit of using threads and one benefit of using processes in a distributed system.
[5]
(d) Explain one benefit and one challenge to using code migration in a distributed system. [5]
3 (a) What are some of the potential disadvantages of using cloud computing? [5]
(b) Explain how virtualization can be used to help migrate code in heterogeneous systems. [5]
(c) Provide a real-world example of a transient communication service. [5]
(d) RPC (Remote Procedure Call) provides access and location transparency. Justify this statement.
[5]
4 (a) Assume a server has a procedure which a client wishes to call but RPC cannot be used for some
reason. Describe an alternative solution the client could use to call the procedure in question. [5]
(b) Describe a useful benefit of using queues as the data structure to store messages in MOM
(Message Oriented Middleware). [5]
(c) Describe one potential problem which may occur when using the token-ring algorithm to provide
mutual exclusion access to a shared resource. [5]

(d) Describe an example where it is useful to know the geographical locations of the computers in a
distributed system. [5]


程序代写代做C/C++/JAVA/安卓/PYTHON/留学生/PHP/APP开发/MATLAB


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