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. Reports a snapshot of the current processes
/lib
cat > {filename}
top
ps

2. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
22
netstat
nslookup
'/'

3. Temporary files cleaned on reboot
ifconfig -a
uname -a
apropos
/tmp

4. IMAP
tail
mail
143
df

5. Changes password for a user
uname -a
less {filename}
passwd
ethtool

6. Query internet name servers interactively
date
nslookup
80
wget

7. Displays a table of all network interfaces / errors
rm
netstat -i
du
ifconfig -a

8. Displays system uptime
history
bg
uptime
pwd

9. Prints contains of text file
nslookup
cat
bg
uname -a

10. View a text file - Use text editor and don't save.
25
pwd
pico {filename}
53

11. User root's home directory
/boot
dig-x
cat
/root

12. Kills a process by pid
uname -a
cd
chgrp
kill

13. Contains essential devices
/etc
/dev
ethtool
uname -a

14. Kills all processes by name
killall
156
'/'
/media

15. Creates a group for users
groupadd
/bin
grep
110

16. Checks web connectivity (displays page contents)
chown
cat {filename}
curl
464

17. View a text file - View file one screen at a time
more {filename}
date
fg
cat {filename} | more

18. Libraries essential for the binaries in /bin/ and /sbin/
passwd
/lib
cat
du -a

19. Lists all stopped/paused background. Resumes a stopped job
25
ifup
ifconfig
bg

20. SFTP
110
stat
115
history

21. POP3
43
netstat
nslookup
110

22. Removes a directory
du
21
rmdir
history

23. Creates a file / updates it
/var
/usr
/var/log
touch

24. Displays all file space usage
du -a
usermod
cat
pwd

25. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
mail
25
uptime
dig-x

26. Creates a directory
ls
head
mkdir
dig

27. Reverse dns lookup
more {filename}
/bin
dig-x
20

28. Ftp Control
chown
/proc
21
page {filename}

29. Log files
/var/log
/lib
uname -a
grep '{pattern}' {file}

30. Ftp Data
w
20
cal
groupadd

31. Displays kernel routing tables
cat
netstat -r
sudo
110

32. Displays calendar
cal
mkdir
ifconfig
file

33. Brings the most recent job to the foreground
fg
pico {filename}
ping
stat

34. Deletes a file
mkdir
rm
/opt
/root

35. View a text file - View file one screen at a time
more {filename}
killall
rm
25

36. SQL
/root
118
sudo
less {filename}

37. Lists all files within a directory (including hidden)
less {filename}
finger
rm
ls -a

38. SQL
cat {filename} | more
156
/bin
25

39. Users' home directories - containing saved files - personal settings - etc
/mnt
/root
touch
/home

40. View a text file - View file but it scrolls.
ethtool
80
cat {filename}
cat {filename} | more

41. Displays manual or help document for a command/application
/media
25
man
/dev

42. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
'/'
rm
53
/proc

43. BGP
uname -a
179
grep '{pattern}' {file}
ping

44. Displays user information
161
netstat -i
nslookup
finger

45. Copies a file
cp
/dev
page {filename}
/boot

46. Host-specific system-wide configuration files
fg
/boot
/etc
/home

47. HTTPS
ifconfig
443
/proc
/etc

48. Shows who is currently logged in and where
161
/dev
w
/opt

49. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
/tmp
cat > {filename}
file
page {filename}

50. Displays the status of a service or all services
service
/var
history
host