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Role-specific Linux Makefile Interview Questions & Answers:

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1. If make command is executed as "make -j 2?, then:
a) two jobs will run simultaneously
b) only two will be executed
c) it will give an error
d) none of the mentioned?

a) two jobs will run simultaneously

2. What is makefile?
a) makefile describes to the make command that how to compile the program
b) makefile contains various statements related with the compilation of target
c) both (a) and (b)
d) none of the mentioned?

a) makefile describes to the make command that how to compile the program

3. Which of these commands will set the permissions on file textfile to read and write for the owner, read for the group, and nothing for everyone else?
a) chmod 046 textfile
b) chmod 640 textfile
c) chmod 310 textfile
d) chmod rw r nil textfile?

b) chmod 640 textfile

4. Binary or executable files are:
a) regular files
b) device files
c) special files
d) directory files?

a) Regular files

5. Which of the following umask settings doesn't allow execute permission to be set by default on directory files?
a) 222
b) 111
c) 000
d) 444

c) 000

6. Which of the following umask settings allow execute permission to be set by default on regular files?
a) 222
b) 111
c) 000
d) None of the given choices

d) None of the given choices

7. The command chmod 4777 a.out:
a) will set the suid bit of a.out
b) will set the suid bit of a.out only if the command is issued by root
c) is not a valid command
d) will set the sticky bit of a.out

a) will set the suid bit of a.out

8. What does chmod +t do?
a) wrong syntax
b) set effective userid for filename
c) set effective groupid for filename
d) set the sticky bit

d) set the sticky bit

9. A user executes the following command successfully:
$ chmod +x file1.txt
Which of the following is true of the output of this command?
a) The command results in adding execute permission to the user who ran this command
b) The command results in adding execute permission for the owner of the file
c) The command results in an error since the file is not an executable file
d) The command results in adding execute permission for all users (i.e., user,group & others)

d) The command results in adding execute permission for all users (i.e., user,group & others)

10. If you are a root user, how can you grand execute permission only for the owner of the file project1?
a. chmod +x project1
b. chmod u+x project1
c. chmod a+x project1
d. chmod U+X project1

b. chmod u+x project1

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