Introduction to Linux II

What is the purpose of the lsof command? Listing of all hidden files Listing of all files in the...

Which command can be used to view all open ports, along with the processes using them? nmap netstat...

Which command makes it possible to ping all the hosts on a given subnet? nmap -a nmap -sP ping -a...

Which of the following is not a state of ports as reported by nmap? Closed Suspended Open Filtered

Which of the following is not a function of nmap? Finding unreachable routes Auditing networks...

The chage command supports a _____ mode. command interactive batch background

You need to enforce an organization’s policy of mandatory password changes every 90 days. Which...

Which command can be used that will take immediate effect, to inactivate the password of a user who...

Which password is required for authentication to use su? Password of the user who owns the...

What is the default value of the PASS_MAX_DAYS variable, which defines the maximum number of days...

Which files define the user’s password aging policy? /etc/login.defs and /etc/default/user.defs...

Which command is used to keep the user’s account in a locked state? passwd -L chage -L usermod -L...

Which command is used to activate a newly created user account? useradd usermod passwd chmod

What type of information is stored in the /etc/passwd file? User Password information User Password...

Which file stores the encrypted password? /etc/passwd /etc/shadpaswd /etc/shadow /etc/password