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. Changes directories
groupadd
w
cd
ping

2. Displays the 10 bottom lines of a file
/bin
115
tail
ethtool

3. View a text file - Very handy with ncftp.
page {filename}
w
host
top

4. List files within a directory
ls
usermod
156
/tmp

5. Essential system binaries : init - ip - mount
page {filename}
/sbin
top
ls

6. SMTP
dig-x
/proc
mkdir
25

7. Changes ownership of a file or directory
chown
wget
pwd
uptime

8. View a text file - Use text editor and don't save.
cat
pico {filename}
finger
nslookup

9. 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.
du
/var
finger
80

10. Prints contains of text file
cat
df
118
cal

11. User root's home directory
apropos
rmdir
netstat -r
/root

12. Brings and interface down
bg
/media
ifdown
118

13. View a text file - View file but it scrolls.
cd
/sbin
22
cat {filename}

14. SFTP
stat
/home
115
mkdir

15. DNS
161
ethtool
53
head

16. Contains essential devices
cat {filename}
cd
80
/dev

17. SNMP
161
kill
143
/home

18. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/tmp
/proc
ifdown
ping

19. Displays system uptime
stat
uptime
history
groupadd

20. Displays Kernel information
uname -a
ifdown
/boot
more {filename}

21. Brings an interface up
ifup
mv
179
man

22. Displays calendar
cat {filename}
cal
cat {filename} | more
page {filename}

23. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
mail
killall
/usr
pwd

24. Kills a process by pid
grep
ps
stat
kill

25. BGP
usermod
mkdir
179
mail

26. Creates a file / updates it
20
touch
bg
cd

27. SQL
mv
ifconfig -a
156
/bin

28. Find regular expression in file.

29. Displays all current running processes (similar to task manager)
464
wget
rmdir
top

30. Displays user information
/tmp
netstat -i
less {filename}
finger

31. Prints file type
23
wget
file
/usr

32. Prints file information
rm
/proc
pico {filename}
stat

33. Adds existing user to a group
dig-x
wget
passwd
usermod

34. Lists all files within a directory (including hidden)
rm
pico {filename}
ls -a
passwd

35. Display all interfaces
179
apropos
host
ifconfig -a

36. dns lookup
service
dig
less {filename}
cat {filename}

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

38. Changes group ownership of file or directory
rmdir
w
cal
chgrp

39. Removes a directory
rmdir
fg
mkdir
23

40. Report file system disk space usage
passwd
/etc
df
'/'

41. IMAP
du
/opt
143
curl

42. HTTP
cat > {filename}
ls -a
80
groupadd

43. Check IP Addresses of active interfaces
23
/lib
ifconfig
ls

44. Creates a directory
mkdir
/var
w
/mnt

45. Parses for string
less {filename}
cat {filename} | more
grep
mail

46. Does a DNS lookup or reverse dns lookup
/usr
df
host
/opt

47. Kills all processes by name
service
sudo
/proc
killall

48. POP3
110
/media
43
man

49. Displays current date and time
date
grep
file
service

50. Telnet
80
/lib
netstat -i
23