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Question:
a) Illustrate with the help of a diagram, the difference between two tier and three tier architectures.
b) Explain in what kind of environment, a peer to peer environment is preferred rather than a client/server. Give reasons for your choice.
c) What do you understand by scripting? Is scripting important, justify your answer.
d) List the two types of extensions in which scripts are saved.
Direct memory access Many computers avoid burdening the main CPU with programmed I/O by offloading sine if this work to a special-purpose processor known as a direct memory add
Internal file structure All disk I/O is performed in units of single block, and all blocks are the similar size. It is unlikely that the physical record size will exactly match
Q. Describe why SSTF scheduling tends to favour middle cylinders over the innermost and outermost cylinders. Answer: The middle of the disk is the location having the smalles
Define request edge and assignment edge. Answer: A directed edge from process Pi to resource type R j is denoted by Pi->j; it signifies that process Pi requested an instance
Q. Why is it complicated to protect a system in which users are allowed to do their own I/O? Answer: In earlier chapters we identified a distinction among kernel and user mod
Determine the reasons for Poor response time Process busy or High I/O rates or High paging rates
VARIABLE PARTITIONING We can differ the partitions and change the location according to the size of the process. 50k 40k
Q. In a disk jukebox what would be the result of having more open files than the number of drives in the jukebox? Answer: Two bad results could result. One likelihood is star
Explain the Peterson's solution for the critical section problem? In Peterson's solution two variables a) flag and b) turn are used as shared variables. If the both shared vari
explain dynamic patrician stratagies
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