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Question: Concurrency and Synchronization
a) Define the following terms:
I. Critical section II. Mutual Exclusion III. Deadlock IV. Starvation.
b) Name three methods which are usually used in synchronizing processes.
c) What are semaphores used for?
d) What is the concept of an atomic operation?
e) Describe the concept involved in the producer - consumer problem.
f) Semaphores support two types of atomic operations? What are they? And what does each type of operation represent?
g) There are two types of semaphore implementation. State them and what are the operations involved in each of them.
Explain the difference between internal and external fragmentation. Internal Fragmentation is the area in a region or a page that is not used by the job occupying that region o
Question : a) Consider table 1.0 below, assume the processes arrived in the order P 1 , P 2 , P 3 , P 4 at time shown and need the indicated burst time (both in milliseconds)
Dynamic scheduling : The number of thread in a program may be changed during the course of operation. Dynamic priority scheduling is a kind of scheduling algorithm in which the pr
Broken data into small packets allow time division multiplexing. In TDM every packet leaves the sender and is switched on the shared interaction channel through a multiplexer. At t
Determine the task of the Pass II In a two-pass assembler Synthesize the target program is the task of the Pass II
Explain in detail about ipc in linux
Question: a) What is an Input/Output module and what are the five categories their functions fall into? b) What is an Operating System? Briefly describe the two objectives
Entry-sequenced file organization The records in an entry-sequenced file are store up in the order they are written into the file. New records are for all time appended to
what is system performence?
Q. Show the services which provided by operating system? A) Resource Allocation: If there are more than one user or jobs running at the same instance then resource
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