unix, Operating System

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what is difference between file descriptor and file pointer?

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Explain logical file system architecture, Logical File System Responsi...

Logical File System Responsible for providing the before discussed interface to the user including: File access. Directory operations. Security and protection.

CPU Scheduing FCFS, Assume that P A , P B and P C are three distinguished p...

Assume that P A , P B and P C are three distinguished program s . When P A is executed, it needs 10 ticks to complete its execution and it forks new processes executing P B at tick

Differences between symmetric and asymmetric multiprocessing, Describe the ...

Describe the differences between symmetric and asymmetric multiprocessing. What are three advantages and one disadvantage of multiprocessor systems? Symmetric multiprocessing t

Define an imperative statement, Determine an imperative statement Imper...

Determine an imperative statement Imperative statement points out an action to be carried out during execution of assembled program

Explain about threading issues, Explain about threading issues? The for...

Explain about threading issues? The fork and exec system calls In a multithreaded program of few UNIX systems have chosen to have two versions of fork, one that duplicates e

Optimal replacement policy, The optimal replacement policy, called OPT, is ...

The optimal replacement policy, called OPT, is to evict the page which will be accessed farthest into the future. Since we can't predict the future precisely, we can't implement OP

How can the deadlock be prevented?, How can the deadlock be prevented? ...

How can the deadlock be prevented? To evade deadlocks first we will have to obtain the information about how resources are to be requested. And as well we should make sure that

Semaphores, Synchronization can be achieved by means other than locks and c...

Synchronization can be achieved by means other than locks and condition variables. One alternative is semaphores. A semaphore is used to regulate traf?c in a critical section. A se

NETWORK OPERATING SYSTEM, explain about design issues of network operating ...

explain about design issues of network operating system

Explain the various methods for handling deadlocks, Explain the various met...

Explain the various methods for handling deadlocks.      A set of processes is deadlocked if every process in the set is waiting for an event that only a process in the

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