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ISRO | ISRO CS 2008 | Question 59
In which of the following four necessary conditions for deadlock processes claim exclusive control of the resources they require?(A) no preemption(B) mutual exclusion(C) c...
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ISRO | ISRO CS 2008 | Question 58
A critical section is a program segment(A) which should run in a certain amount of time(B) which avoids deadlocks(C) where shared resources are accessed(D) which must be e...
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ISRO
ISRO | ISRO CS 2008 | Question 57
Overlaying(A) requires use of a loader(B) allows larger programs, but requires more effort(C) is most used on large computers(D) is transparent to the user Answer: (D) Ex...
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ISRO
ISRO | ISRO CS 2008 | Question 56
A public key encryption system(A) allows anyone to decode the transmissions(B) allows only the correct sender to decode the data(C) allows only the correct receiver to d...
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ISRO
ISRO | ISRO CS 2008 | Question 55
Checkpointing a job(A) allows it to be completed successfully(B) allows it to continue executing later(C) prepares it for finishing(D) occurs only when there is an error ...
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ISRO
ISRO | ISRO CS 2008 | Question 54
Dirty bit for a page in a page table(A) helps avoid unnecessary writes on a paging device(B) helps maintain LRU information(C) allows only read on a page(D) None of the ab...
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ISRO
ISRO | ISRO CS 2008 | Question 53
Which of the following is an example of spooled device?(A) A line printer used to print the output of a number of jobs(B) A terminal used to enter input data to a running...
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ISRO
ISRO | ISRO CS 2008 | Question 52
The Memory Address Register(A) is a hardware memory device which denotes the location of the current instruction being executed.(B) is a group of electrical circuit, that ...
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ISRO | ISRO CS 2008 | Question 51
What is the name of the operating system that reads and reacts in terms of operating system?(A) Batch system(B) Quick response time(C) real time system(D) Time sharing sy...
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ISRO
ISRO | ISRO CS 2008 | Question 50
Thrashing(A) always occurs on large computers(B) is a natural consequence of virtual memory systems(C) can always be avoided by swapping(D) can be caused by poor paging al...
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ISRO
ISRO | ISRO CS 2008 | Question 49
Dynamic address translation(A) is part of the operating system paging algorithm(B) is useless when swapping is used(C) is the hardware necessary to implement paging(D) st...
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ISRO
ISRO | ISRO CS 2008 | Question 48
With Round-Robin CPU scheduling in a time shared system(A) using very large time slices (quantas) degenerates into FirstCome First served (FCFS) algorithm.(B) using extrem...
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ISRO
ISRO | ISRO CS 2008 | Question 47
Feedback queues(A) are very simple to implement(B) dispatch tasks according to execution characteristics(C) are used to favour real time tasks(D) require manual interven...
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ISRO
ISRO | ISRO CS 2008 | Question 46
The total time to prepare a disk drive mechanism for a block of data to be read from it is(A) seek time(B) latency(C) latency plus seek time(D) transmission time Answer:...
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ISRO
ISRO | ISRO CS 2008 | Question 45
Which of the following is termed as minimum error code(A) Binary code(B) Gray code(C) Excess 3 code(D) Octal code Answer: (B) Explanation: Gray codes are less error-prone ...
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