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Question 1 1 ( 1 point ) Which of the following Linux Intrusion Detection Systems scan for changes to files on your system? ( Choose

Question 11(1 point)
Which of the following Linux Intrusion Detection Systems scan for changes to files on your system? (Choose 2)
Question 11 options:
Tripwire
Snort
Port Sentry
AIDE
Question 12(1 point)
What command below will create an image file from the contents of a directory?
Question 12 options:
mkisofs
image
dd
dumpe2fs
Question 13(1 point)
Which of the following commands can be used to unmount a filesystem?
Question 13 options:
mkfs
fdisk
format
umount
Question 14(1 point)
Which character tells the bash shell to run a command as a background process?
Question 14 options:
$
*
>
&
Question 15(1 point)
Which of the following are valid function declarations? (Choose all that apply)
Question 15 options:
myfunc (){ echo Hello World; }
myfunc =() echo Hello World
function myfunc = "echo Hello World";
function myfunc (){ echo Hello World; }
Question 16(1 point)
Which of the following crontab entries would be executed at 2:04am on Fridays only?
Question 16 options:
24**5
42*5*
42**5
24*5*
Question 17(1 point)
Which of the following is NOT a valid file when you issue the command: 1s-1?
Question 17 options:
-rwxr-xr-x
o-w-r-x-w-
srwx-w-rwx
drwxr-xrwx
Question 18(1 point)
What can you do to improve the security of xinetd-managed daemons?
Question 18 options:
Pray
Use a Linux IDS
Implement TCP wrappers
Implement PAM authentication
Question 19(1 point)
Which of the following tar commands will extract an archive?
Question 19 options:
tar-xzvf archive.tar.gz
tar-cf archive.tar*
tar-tvf archive.tar
tar-cvf archive.tar
Question 20(1 point)
What command will change the root of the filesystem to the hard disk in System Rescue mode or on a Live DVD root shell?
Question 20 options:
linux rescue
chroot/mnt/sysimage
chown root/
cd/

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