Test your basic knowledge |

Linux Administration

Subject : it-skills

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Essential system binaries : init - ip - mount
/sbin
mail
pico {filename}
passwd

2. Creates a directory
cat
mv
/mnt
mkdir

3. BGP
usermod
mv
179
du -a

4. Temporarily mounted filesystems
21
/mnt
143
/opt

5. Prints contains of text file
grep
df
/bin
cat

6. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
/proc
mail
161
/boot

7. IMAP
143
21
df
/var

8. List files within a directory
netstat -i
pico {filename}
ls
115

9. Checks web connectivity (displays page contents)
21
cd
w
curl

10. Brings an interface up
ifup
23
/var/log
dig-x

11. Ftp Data
/etc
464
20
ls

12. SFTP
115
ifconfig -a
21
fg

13. Prints file type
file
/root
/usr
pwd

14. Kerberos password
/etc
161
464
less {filename}

15. Contains essential devices
usermod
/dev
cd
/root

16. HTTPS
443
netstat -r
kill
sudo

17. Displays all file space usage
netstat -r
du -a
more {filename}
passwd

18. Host-specific system-wide configuration files
/etc
'/'
rmdir
22

19. Display all interfaces
netstat -i
ifconfig -a
uptime
/root

20. SQL
service
118
53
cat

21. View a text file - Very handy with ncftp.
page {filename}
uptime
ls
groupadd

22. Displays the 10 bottom lines of a file
tail
nslookup
cal
464

23. Users' home directories - containing saved files - personal settings - etc
netstat
uname -a
/home
ls

24. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
ps
ls -a
cat {filename} | more
/bin

25. SSH
date
21
22
179

26. Ftp Control
21
rmdir
161
killall

27. Root directory of file system (not the user root's home dir)
'/'

28. SQL
/dev
finger
110
156

29. Lists all stopped/paused background. Resumes a stopped job
rm
chgrp
25
bg

30. Adds existing user to a group
usermod
host
80
more {filename}

31. View a text file - View file one screen at a time
more {filename}
ifdown
uname -a
rmdir

32. SMTP
/etc
143
cal
25

33. Kills a process by pid
man
apropos
kill
pwd

34. Log files
21
/dev
/var/log
netstat -i

35. dns lookup
43
464
chown
dig

36. Secondary hierarchy for read-only user data
/lib
/tmp
/usr
groupadd

37. View a text file - View file but it scrolls.
file
cat {filename}
groupadd
cd

38. Test network connectivity
uname -a
ping
/boot
curl

39. Find regular expression in file.

40. Temporary files cleaned on reboot
161
/boot
/tmp
service

41. Parses for string
grep
/usr
df
'/'

42. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
53
stat
netstat
top

43. Variable files—files whose content is expected to continually change during normal operation of the system—such as logs & spool files & and temporary e-mail files.
/proc
/var
/etc
chown

44. User root's home directory
43
/opt
wget
/root

45. POP3
cat {filename} | more
curl
110
mv

46. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/proc
/var/log
110
cat

47. Displays calendar
cp
ifconfig
43
cal

48. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
du
cat {filename} | more
cat > {filename}
killall

49. Removes a directory
rmdir
ifup
118
date

50. Elevate rights to that of root
du -a
df
sudo
23