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. SQL
118
/usr
ifconfig
110

2. SMTP
cat
25
history
115

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

4. Deletes a file
rmdir
/var
rm
cd

5. SFTP
22
service
115
cal

6. Elevate rights to that of root
118
sudo
tail
ifdown

7. POP3
head
110
uname -a
/dev

8. Mount points for removable media such as CD-ROMs
cat
/media
chgrp
nslookup

9. Contains essential devices
stat
host
/dev
passwd

10. Ftp Control
/boot
25
killall
21

11. Kills all processes by name
ifconfig -a
/mnt
/var/log
killall

12. Displays all file space usage
/usr
df
du -a
bg

13. Displays the 10 bottom lines of a file
nslookup
fg
tail
passwd

14. Test network connectivity
/media
netstat
ping
passwd

15. Prints file type
sudo
156
file
cat {filename}

16. Lists all files within a directory (including hidden)
ls -a
/dev
apropos
top

17. Log files
/bin
ps
/var/log
usermod

18. Query internet name servers interactively
cat {filename}
nslookup
chown
df

19. Reports a snapshot of the current processes
ps
bg
du
/etc

20. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
cat > {filename}
443
fg
cat {filename}

21. SSH
53
stat
22
ifdown

22. User root's home directory
cat {filename} | more
grep
mail
/root

23. Prints current working directory
pwd
fg
/opt
finger

24. Temporary files cleaned on reboot
/tmp
cd
cat {filename} | more
killall

25. Host-specific system-wide configuration files
dig-x
/etc
20
less {filename}

26. Creates a directory
mkdir
uptime
nslookup
cat {filename} | more

27. Brings an interface up
finger
mkdir
ifup
/media

28. View a text file - View file one screen at a time
more {filename}
cp
143
stat

29. HTTPS
80
ifconfig
443
uname -a

30. Displays user information
finger
/root
/opt
more {filename}

31. Does a DNS lookup or reverse dns lookup
host
df
ethtool
/etc

32. Shows who is currently logged in and where
mv
w
ifdown
finger

33. Changes ownership of a file or directory
chown
20
dig-x
cat

34. List files within a directory
page {filename}
80
ls
cat {filename} | more

35. Lists all stopped/paused background. Resumes a stopped job
rm
mail
bg
/etc

36. Checks web connectivity (displays page contents)
ls
du -a
curl
stat

37. Displays system uptime
ping
uptime
chown
pico {filename}

38. Prints file information
464
stat
ethtool
dig

39. Displays kernel routing tables
/lib
/opt
/sbin
netstat -r

40. Displays all current running processes (similar to task manager)
top
more {filename}
sudo
'/'

41. Removes a directory
usermod
cat {filename} | more
rmdir
/bin

42. Secondary hierarchy for read-only user data
/usr
'/'
bg
passwd

43. Displays calendar
cal
53
/var/log
/proc

44. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
uptime
80
history

45. Displays Kernel information
uname -a
chgrp
du
pico {filename}

46. Search for all Unix commands that match keyword - e.g apropos file.
tail
w
killall
apropos

47. Display all interfaces
rm
ifconfig -a
w
service

48. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
/usr
'/'
cat {filename}

49. Users' home directories - containing saved files - personal settings - etc
page {filename}
man
sudo
/home

50. 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.
wget
stat
ping
/var