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Operating System Architecture MCQs | Page - 41

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. 401) f a file is removed in Unix using ‘rm’ then

(A) the file can be recovered by a normal user
(B) the file cannot be recovered by a user
(C) the file can be fully recovered provided the sytem is not rebooted
(D) he file will be moved to /lost+found directory and can be recovered only by administrator’s intervention
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Mr. Dubey • 51.17K Points
Coach

Q. 402) Executing the ‘cd ..’ command when at the root level causes

(A) error message indicating the user can’t access beyond the root level
(B) behavior is unix- flavor dependent
(C) results in changing to the ‘home’ directory
(D) nothing happens
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Mr. Dubey • 51.17K Points
Coach

Q. 403) How do you rename file “new” to file “old”?

(A) mv new old
(B) move new old
(C) cp new old
(D) rn new old
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Mr. Dubey • 51.17K Points
Coach

Q. 404) What command is used to copy files and directories?

(A) copy
(B) cp
(C) rn
(D) cpy
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Mr. Dubey • 51.17K Points
Coach

Q. 405) When mv f1 f2 is executed which file’s inode is freed?

(A) f1
(B) f2
(C) new inode will be used
(D) mplementation dependent
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Mr. Dubey • 51.17K Points
Coach

Q. 406) Any file’s attribute information is stored in which structure on the disk

(A) inode
(B) data blocks
(C) file blocks
(D) directory file
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Mr. Dubey • 51.17K Points
Coach

Q. 407) The file permission 764 means

(A) every one can read, group can execute only and the owner can read and write
(B) every one can read and write, but owner alone can execute
(C) every one can read, group including owner can write, owner
(D) every one can read and write and execute
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Mr. Dubey • 51.17K Points
Coach

Q. 408) The permission -rwxr–r– represented in octal expression will be

(A) 777
(B) 666
(C) 744
(D) 711
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Mr. Dubey • 51.17K Points
Coach

Q. 409) Effective user id can be set using following permission

(A) 777
(B) 2666
(C) 4744
(D) 1711
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Mr. Dubey • 51.17K Points
Coach

Q. 410) Effective group id can be set using following permission

(A) 777
(B) 2666
(C) 4744
(D) 1711
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