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Linux(Computer Science ) Questions and Answers
Home
Topic
Computer Science
Linux
Question 1.
The location for subdirectories for local programs and executables for user and administrative commands, is:
/usr
/tmp
/opt
/mnt
None of the above
Explanation:-
Answer: Option A. ->
/usr
Question 2.
Which of the following is not a filter command?
sort
wc
grep
cat
None of the above
Explanation:-
Answer: Option D. ->
cat
Question 3.
What command is used to assign executable permission to all of the files named "report"?
chmod ugo + x report
chmod u + x report
chmod ugo + rw report
chmod ugo + r report
None of the above
Explanation:-
Answer: Option A. ->
chmod ugo + x report
Question 4.
What command is used to display a file contents in octal form?
oct
of
od
cd
None of the above
Explanation:-
Answer: Option C. ->
od
Question 5.
What command is used to change the working directory?
cdir
chdir
changedir
cd
None of the above
Explanation:-
Answer: Option D. ->
cd
Question 6.
What command is used to count the number of files in the current directory by using pipes?
ls | ws - c
ls | wc - w
ls | wc - l
ls | wc
None of the above
Explanation:-
Answer: Option C. ->
ls | wc - l
Question 7.
What command is used to count just the number of characters in a file?
wc - r
wc - w
wc - c
wc - 1
None of the above
Explanation:-
Answer: Option C. ->
wc - c
Question 8.
How many class A, B and C network IDs can exist?
128
126
16,382
2,113,658
None of the above
Explanation:-
Answer: Option D. ->
2,113,658
Question 9.
LILO
stands for Linux loader
is the Linux boot loader
is a tool used to boot the Kernel on x86 hardware
All of the above
None of the above
Explanation:-
Answer: Option D. ->
All of the above
Question 10.
How can you rebuild the RPM file to include the new patches?
- - recompile
- - rebuild
- - generate
- - execute
None of the above
Explanation:-
Answer: Option A. ->
- - recompile
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