Q. Which of the following concurrency control protocols ensure both conflict serializability and freedom from deadlock ?

I) 2-phase locking
II) Time-stamp ordering

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Q. The initial value of the semaphore that allows only one of the many processes to enter their critical sections, is

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Q. For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion?

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Q. Semaphores

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Q. What is the initial value of the semaphore to allow only one of the many processes to enter their critical section?

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Q. Part of a program where the shared memory is accessed and which should be executed invisibly, is called

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Q. A critical region is

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Q. For procedure, the system prevent the overlap of buffer

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Q. In implementation of Semaphores, for a single processor system, it is possible to inhibited

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Q. In message passing a process receives information by executing the

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Q. In a uniprocessor system concurrent processes cannot have overlapped

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Q. In addressing, a many to one relationship is useful for

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Q. The controller process services writes a

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Q. Using Semaphores, each process has a critical section used to access the

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Q. The global variable read count is used to keep the track of the number of

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Q. In readers/writers problems, Readers are processes that are not required to

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Q. Requirement for mutual exclusions a process remains inside its critical section for a

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Q. For synchronization, the communication of a message between two processes implies some level of

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Q. The operating system must allocate and deal various resources for each active

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Q. During process interaction concurrent processes come into conflict with each other when they are

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