Unix - Study Mode

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[#541] Two UNIX systems may or may not use the same set of system calls.

(A) True

(B) False

Correct Answer

(B) False

[#542] Which one of the following is the best way of saving and quitting the editor?

(A) ZZ

(B) :wq

(C) :w

(D) ':x'

Correct Answer

(A) ZZ

[#543] Which command is used with vi editor to move cursor forward to first occurrence of character 'ch' in the current line?

(A) tch

(B) fch

(C) rch

(D) ech

Correct Answer

(B) fch

[#544] Which of the following keys is used to delete the character beneath the cursor?

(A) x

(B) X

(C) dd

(D) D

Correct Answer

(A) x

[#545] Which command is used to assign only read permission to all three categories of the file 'note'?

(A) chmod go+r note

(B) chmod a-rw

(C) chmod ugo=r note

(D) chmod u+r,g+r,o-x note

Correct Answer

(C) chmod ugo=r note