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. Displays the connection media state and capabilities
ethtool
killall
rm
du

2. 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.
/var
sudo
grep
ping

3. Telnet
143
23
cal
22

4. Lists all stopped/paused background. Resumes a stopped job
156
/mnt
bg
w

5. Downloads a file from the internet
wget
touch
cal
dig-x

6. Elevate rights to that of root
sudo
ifconfig
/sbin
stat

7. View a text file - View file one screen at a time
'/'
more {filename}
/boot
wget

8. Check IP Addresses of active interfaces
110
/opt
ifconfig
cat {filename} | more

9. Checks web connectivity (displays page contents)
curl
w
/mnt
host

10. Kills all processes by name
ifconfig -a
pwd
killall
usermod

11. Configuration for optional installed software
finger
/opt
chown
host

12. Displays all file space usage
rm
du -a
grep '{pattern}' {file}
cp

13. Changes password for a user
less {filename}
23
443
passwd

14. Deletes a file
history
ls
80
rm

15. Brings and interface down
/opt
'/'
bg
ifdown

16. View a text file - Like more - with extra features
/lib
pwd
wget
less {filename}

17. SQL
21
ping
date
156

18. POP3
chgrp
110
/bin
service

19. Users' home directories - containing saved files - personal settings - etc
cat > {filename}
25
/home
kill

20. Search for all Unix commands that match keyword - e.g apropos file.
grep '{pattern}' {file}
cat {filename} | more
man
apropos

21. Creates a directory
pwd
groupadd
chgrp
mkdir

22. Brings the most recent job to the foreground
dig
wget
fg
grep

23. Prints current working directory
rm
21
groupadd
pwd

24. Shows who is currently logged in and where
netstat
w
curl
killall

25. Temporary files cleaned on reboot
finger
/tmp
464
ifconfig -a

26. Adds existing user to a group
more {filename}
netstat -r
usermod
host

27. Changes group ownership of file or directory
host
ps
80
chgrp

28. Displays kernel routing tables
cat
/dev
netstat -r
cat {filename} | more

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

30. WHOIS
killall
chown
man
43

31. Display all interfaces
wget
ifconfig -a
ethtool
ls -a

32. Displays a table of all network interfaces / errors
netstat -i
uptime
tail
143

33. Prints file type
file
/bin
more {filename}
page {filename}

34. Copies a file
cp
less {filename}
stat
115

35. View a text file - Very handy with ncftp.
443
page {filename}
cat
115

36. Does a DNS lookup or reverse dns lookup
groupadd
ethtool
/var/log
host

37. Log files
chown
nslookup
mail
/var/log

38. Displays the 10 bottom lines of a file
curl
head
tail
23

39. View a text file - View file one screen at a time
finger
grep '{pattern}' {file}
ifup
cat {filename} | more

40. Kills a process by pid
80
grep
kill
netstat -r

41. IMAP
115
80
143
uname -a

42. HTTP
80
date
file
mv

43. Estimate file space usage
tail
du
/lib
cp

44. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
/etc
head
netstat
ls

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

46. Kerberos password
service
464
mail
curl

47. Displays manual or help document for a command/application
25
443
killall
man

48. Shows command history
df
chown
cp
history

49. Creates a file / updates it
touch
grep '{pattern}' {file}
ifconfig
passwd

50. Displays system uptime
uptime
23
cd
110