You are poking around in a Linux box and run the ls -l command and notice a curious entry:
_rwsr_xr_x 1 root users 381 2009-02-29 6:32 yes Which of the following statements is true? (Choose two)
A) The octal equivalent is of these permissions is 755 + SUID
B) The answer to the command was "yes" and the file requested does exist
C) The octal equivalent is of these permissions is 4755
D) The SGID bit is set and the file "yes" is executable with the root UID

Question

Quizplus · Accepted Answer

Being able to do binary, octal, and hex numbers is a pre-requisite for the CEH. Understanding how Linux permissions work is also critical. The "4" in this case is in binary 100, which will set the UID bit for the User.

You Are Poking Around in a Linux Box and Run