The su command by default makes an entry into the log file for every su command attempt.
The following is a single line from the file: SU 12/18 23:20 + pts/1 user1-root What does the
+ sign represent?
A.
unsuccessful attempt
B.
successful attempt
C.
The attempt was from a pseudo terminal, and not the console.
D.
The attempt was from a user that is in the adm group, same as root.
E.
Time zone is not set.