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# CS604 Mid Term Papers Spring 2019 (15~28-June 2019) & All Solved Past Papers, Solved MCQs & Helping Material

CS604 Mid Term Papers Spring 2019 (15~28-June 2019) & All Solved Past Papers, Solved MCQs & Helping Material

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cs604 paper

total mcqs 18

all from waqar and mooaz files

2 Questions of 3 marks

3 Questions of 5 marks

Q. ak code given tha. code may "convert = Buffer_size" likha tha. pucha gya tha k what is the function of convert in this code. /3

Q. P1 to P4 were given with arrival time and CPU burst time. Find average waiting time using shortest job first algorithm. /5

Q. Give three situations when a file will not open or open() system call fails. /5

Q. ak statement given thi us k 2 reasons btany thy yad ni baki.

CS604

18 mcqs from past papers moiz + waqar files.

1) round robin algorithm dya howa tha osko solve krna tha (5 marks)

2) single-thread system or multiple-threaded system ki digram bnani thi (5 marks)

3) When the fork call the system from shared process between parents and child process ? Is type e question tha.. Why write any five things? (5 marks )

4) What is meant multilevel feedback queue scheduling (3 marks)

Multilevel feedback queue scheduling allows a process to move between queues. The idea is to separate processes

with different CPU burst characteristics. If a process uses too much CPU time, it will be moved to a lower-priority

queue. This scheme leaves I/O bound and interactive processes in the higher-priority queues. Similarly a process that

waits too long in a lower-priority queue may be moved o a higher priority queue.

Ak or bhe tha wo yad nh.

today paper BC1704038..  11:30am   24-6-2019

MCQs all new ony roundabout 7 to 9 from past

QUESTION: why micro kernel is better than Monolithic kernal? reason (5 marks)

QUESTION: schedule algorithm ki characteristc ko identify karna tha (3 MARKS)

QUESTION: (5 marks)

a) Can producer and consumer update buffer concurrently

b) is it feasible for producer and consumer i mean both update buffer concurrently? if yes or no give reason

i forget 2 other

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