Spinlocks are intended to provide __________ only.
A. Mutual exclusion
B. Bounded waiting
C. Aging
D. Progress
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Semaphores are mostly used to implement ____________
A. System calls
B. Ipc mechanisms
C. System protection
D. None of the mentioned
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The program follows to use a shared binary semaphore T. Process A int Y; A1: Y = X*2; A2: X = Y; signal(T); Process B int Z; B1: wait(T); B2: Z = X+1; X = Z; T is set to 0 before either process begins execution and, as before, X is set to 5. Now, how many different values of X are possible after both processes finish executing?
A. One
B. Two
C. Three
D. Four
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The following pair of processes share a common variable X. Process A int Y; A1: Y = X*2; A2: X = Y; Process B int Z; B1: Z = X+1; B2: X = Z; X is set to 5 before either process begins execution. As usual, statements within a process are executed sequentially, but statements in process A may execute in any order with respect to statements in process B. How many different values of X are possible after both processes finish executing?
A. Two
B. Three
C. Four
D. Eight
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A binary semaphore is a semaphore with integer values ____________
A. 1
B. -1
C. 0.8
D. 0.5
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At a particular time of computation the value of a counting semaphore is 7.Then 20 P operations and 15 V operations were completed on this semaphore. The resulting value of the semaphore is? (GATE 1987)
A. 42
B. 2
C. 7
D. 12
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What is a mutex?
A. Is a binary mutex
B. Must be accessed from only one process
C. Can be accessed from multiple processes
D. None of the mentioned
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What are the two kinds of semaphores?
A. Mutex & counting
B. Binary & counting
C. Counting & decimal
D. Decimal & binary
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What is a semaphore?
A. Is a binary mutex
B. Must be accessed from only one process
C. Can be accessed from multiple processes
D. None of the mentioned
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What will happen if a non-recursive mutex is locked more than once?
A. Starvation
B. Deadlock
C. Aging
D. Signaling
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Word of the Day
01 Sep
Adhere
stick fast to (a surface or substance).
پیوستہ ہونا، لگا ہوا ہونا، چپکا ہوا ہونا

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