Linux Makefile Question: Download Makefile PDF

The permission -rwSr-r- represented in octal expression will be:
a) 0777
b) 2666
c) 4744
d) 4644

d) 4644

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Effective group id can be set using following permission: a) 0777 b) 2666 c) 4744 d) 1711	If user tries to remove (rm) a readonly file (444 permission), what will happen? a) The file is removed successfully (and silently) b) The rm command prompts for a confirmation, the command is successful upon confirmation c) The rm command prompts for a confirmation, however the operation fails because of insufficient permissions d) The rm command fails because of insufficient permissions