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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
Q. Why page sizes always powers of 2? Answer: Recall that paging is executed by breaking up an address into a page and offset number. It is most competent to break the address
Explain DosCreateThread Functions Used in the OS/2 DosCreateThread(&threadID,MyThreadFunction,arg,flags,stackSize) DosCreateThread creates a thread within the context of th
Define the Main reason to encrypt a file Major reason to encrypt a file is secure it for transmission.
Write a Perl script assignGrades.pl to assign letter grades to the students.
describe competing process
Question: (a) As a System administrator, elaborate on how you can manage computer accounts in Active Directory of Windows Server 2008? (b) Explain the following user p
Is disk scheduling, other than FCFS scheduling, useful in a single-user environment? Explain your answer. In a single-user environment, the I/O queue usually is blank. Requests
reason for terminating a process
(a) Describe services of operating systems. (b) Differentiate among the short term, medium term and long term scheduling that are given by multi-tasking operating systems.
Explain the Worker Model The Worker Model of client-server application architecture provides a very good understanding of threads and their power to the developer. This exercis
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