Kerala PSC Previous Years Question Paper & Answer
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Below are the scanned copy of Kerala Public Service Commission (KPSC) Question Paper with answer keys of Exam Name 'LR IN INFORMATION TECHNOLOGY POLYTECHNICS KERALA TECHNICAL EDUCATION' And exam conducted in the year 2015. And Question paper code was '018/2015'. Medium of question paper was in Malayalam or English . Booklet Alphacode was 'A'. Answer keys are given at the bottom, but we suggest you to try answering the questions yourself and compare the key along wih to check your performance. Because we would like you to do and practice by yourself.
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Determine the number of page faults when references to pages occur in the following order :
1,2 4,5 2 1, 2, 4. Assume that the main memory can accommodate 3 pages and the main
memory already has the pages 1 and 2, with page 1 having been brought earlier than page 2.
(LRU algorithm is used)
ல 3 ५ 7) 5
© 4 (D) None of the above
Which of the following statements is FALSE?
(^) Segmentation suffers from external fragmentation
(B) Paging suffers from internal fragmentation
(0 Segmented memory can be paged
(D) Virtual memory 1‘_9 used only in multi-user systems
Ready pin of a microprocessor is used :
(A) Toindicate that the microprocessor is ready to receive inputs
(0) To indicate that the microprocessor is ready to receive outputs
(C) To provide direct memory access
(D) To introduce wait states
An operating system uses Shortest Remaining Time first (SRT) process scheduling algorithm.
Consider the arrival times and execution times for the following processes :
Process Execution Arrival
Time Time
11 20 0
P2 25 15
೫8 10 30
P4 15 45
What is the total waiting time for process P2?
ಯ) 8 M 15
©) 40 (फ) 58
15 ⊳ 18/2015
[P.T.0.]
