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Operating System Architecture MCQs | Page - 28

Dear candidates you will find MCQ questions of Operating System Architecture here. Learn these questions and prepare yourself for coming examinations and interviews. You can check the right answer of any question by clicking on any option or by clicking view answer button.

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Mr. Dubey • 51.17K Points
Coach

Q. 271) The state of signals are

(A) preserved across a fork call
(B) not preserved across an exec call
(C) preserved across an exec call
(D) both (a) & (b)
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Mr. Dubey • 51.17K Points
Coach

Q. 272) Which of the following displays the exit status of the last executed command?

(A) echo $4
(B) echo $$
(C) echo $?
(D) echo $!
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Mr. Dubey • 51.17K Points
Coach

Q. 273) Which of the following file names cannot be displayed if la ls* is run?

(A) .x
(B) ?x
(C) both (a) & (b)
(D) hidden
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Mr. Dubey • 51.17K Points
Coach

Q. 274) Which of the following initiates the sequence of events that ultimately allows a user to login?

(A) clri
(B) sync
(C) login
(D) init
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Mr. Dubey • 51.17K Points
Coach

Q. 275) What is ‘ps’ command for?

(A) prints the status
(B) prints the process status
(C) prints the execution status
(D) none
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Mr. Dubey • 51.17K Points
Coach

Q. 276) The first thing that is searched when a command references a file is its

(A) i node
(B) i node number
(C) permission
(D) none of the above
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Mr. Dubey • 51.17K Points
Coach

Q. 277) Profilers are

(A) tools that analyze the run time behavior of a program
(B) tools that check c code for cross file consistency
(C) tools that keep track of evolving versions of a file
(D) none of the above
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Mr. Dubey • 51.17K Points
Coach

Q. 278) Which of the following tools can be used to keep track of evolving version of a file?

(A) make
(B) yacc
(C) sccs
(D) dv
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Mr. Dubey • 51.17K Points
Coach

Q. 279) The size of any block in the unix file system is

(A) 512 bytes
(B) 1024 bytes
(C) 2048 bytes
(D) any of the above
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Mr. Dubey • 51.17K Points
Coach

Q. 280) To find the block size on your file system the command is

(A) blksz
(B) szblk
(C) chksz
(D) cmchk
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