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Problem:
(a) Discuss Distributed File System Caching.
(Your discussion should include the goal and architecture of distributed file system caching and the various possible caching locations together with their corresponding advantages and disadvantages).
(b) (i) In relation to Lamport's logical clock discuss:
? Happened Before Relation. ? Concurrent event.
(ii) Discuss how the Happen Before Relation is implemented using timestamps.
(c) (i) Briefly describe Christian's and Berkeley's physical clock synchronisation algorithms.
(ii) Are externally synchronised clocks also internally synchronised? What about the converse? Explain your answers
What problems arise if the directory structure is a general graph? Searching for a particular file may result in searching the similar directory many times. Deletion of the fil
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What is the purpose of system programs? System programs can be thought of as bundles of useful system calls. They give basic functionality to users and so users do not require
Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4
What is a file? A file is a named collection of related information that is recorded on secondary storage. A file having either programs or data. A file has particular "structu
Q. Presume that a distributed system is susceptible to server failure. What mechanisms would be needed to guarantee the exactly once semantics for execution of RPCs? Ans
what is it all about? why do we need? what are the types of backup? how is it done in unix?
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
Introduction of linux
Direct communication With direct communication each process that requires to communicate must explicitly name the recipient or sender of the communication. The send and receive
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