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Makefile

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“Linux Makefile frequently Asked Questions by expert members with experience in Makefile. These questions and answers will help you strengthen your technical skills, prepare for the new job test and quickly revise the concepts”

56 Makefile Questions And Answers

41⟩ As we type "make" command on the terminal a) make reads the makefile in the current directory b) make reads the makefile in the parent directory c) make reads the makefile in the predefined environment variable d) none of the mentioned

a) make reads the makefile in the current directory

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42⟩ 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

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43⟩ The permission -rwxr-xr-t represented in octal expression will be a) 0777 b) 1755 c) 1754 d) 2754

b) 1755

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44⟩ With a umask value of 112, what is the default permission assigned to newly created regular file? a) -x-x-wx b) -rw-rw-r- c) -r-xr-x-r- d) -rw-rw-r-

d) -rw-rw-r-

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45⟩ Given the command $ chmod o-w datafile a) sets write permission to everyone for datafile b) sets write permission to others for datafile c) clears write permission to everyone for datafile d) clears write permission to others for datafile

d) clears write permission to others for datafile

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46⟩ Which make command option ignores all errors in commands executed to remark files? a) -i b) -j c) -k d) -l

a) -i

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47⟩ Which command is used to assign read-write permission to the owner? a) chmod a+r file b) chmod o+r file c) chmod u=rw file d) chmod og-r file

c) chmod u=rw file

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48⟩ 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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49⟩ 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)

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50⟩ 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

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51⟩ 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

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52⟩ 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

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53⟩ 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

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54⟩ 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

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55⟩ The permission -rwxr–r– represented in octal expression will be?

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56⟩ The permission -rwsr--r-- represented in octal expression will be?

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