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Problem:
(a) (i) Explain what a single system image is and how it is related to the concept of a distributed operating system?
(ii) What are the main differences between a network operating system and a distributed operating system?
(iii) What are the major issues that need to be addressed in designing a distributed operating system?
(b) (i) A design goal for microkernels is to provide the minimal set of basic services that is sufficient to support all of the other services that are required. Discuss the composition of the set of basic services, with arguments for your choices.
(ii) What is the advantage of the layered approach to operating system design?
What components of the R/e system initiate the start of background jobs at the specified time? The batch scheduler initiates the begin of background job. The dispatcher then s
Q. a number of systems automatically delete all user files when a user logs off or a job terminates unless the user explicitly requests that they be kept other systems keep all fil
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What is a thread? A thread or else called a lightweight process (LWP) is a basic unit of CPU utilization, it comprises of a thread id, a program counter, a register set and a s
In fixed portioning scheme, what are the advantages of using unequal- size partitions? With unequal-size partitions there are two probable ways to assign process to partitions.
FIFO page replacement This is the easiest page replacement algorithm. At this juncture the 1 st page entering is the 1 st to leave that is the oldest page leaves. To execute
Deadlock Detection and Recovery It's a method of permitting the system to enter a deadlock state, detect it and then recover. Deadlock detection : Is the process of
Contiguous allocation: Every file will be allocated contiguous space in the memory. Allow the block size be 1K If a 50K files desires to be allocated space after t
Define the DosSleep(ms) Function used in the os/2 DosSleep() suspends the currently executing thread for some time interval specified in the ms parameter. If a value of 0 is
Now we consider the following questions: how can the parent process communicate with its child? Or how can children processes communicate with other children? The exact answer depe
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