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. DNS
date
tail
ls
53

2. SQL
kill
/home
mkdir
118

3. Report file system disk space usage
pico {filename}
cat {filename}
df
23

4. Telnet
date
23
/dev
443

5. WHOIS
passwd
ls
43
25

6. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
df
23
cat > {filename}
page {filename}

7. Displays Kernel information
uname -a
rm
161
/mnt

8. Parses for string
grep
less {filename}
143
chgrp

9. Temporarily mounted filesystems
killall
/mnt
/lib
22

10. Reverse dns lookup
dig-x
mail
ifconfig -a
20

11. View a text file - Very handy with ncftp.
page {filename}
179
156
ifdown

12. View a text file - View file one screen at a time
grep
cal
cat {filename} | more
/home

13. BGP
/root
179
w
/lib

14. Displays the status of a service or all services
mail
ifconfig
service
115

15. POP3
groupadd
ifdown
110
head

16. HTTPS
cat
156
443
finger

17. Brings an interface up
usermod
ifup
/sbin
/bin

18. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
wget
stat
netstat
killall

19. Adds existing user to a group
80
pico {filename}
fg
usermod

20. Configuration for optional installed software
du
/opt
killall
apropos

21. List files within a directory
ifconfig -a
usermod
df
ls

22. User root's home directory
ifup
20
mv
/root

23. Ftp Control
grep '{pattern}' {file}
/dev
21
mv

24. Ftp Data
ifconfig
ifup
apropos
20

25. Essential system binaries : init - ip - mount
man
/sbin
tail
mv

26. Displays manual or help document for a command/application
man
curl
/var/log
/etc

27. Moves a file with the option of renaming it
/root
21
mv
/usr

28. View a text file - Use text editor and don't save.
/usr
/home
pico {filename}
bg

29. Elevate rights to that of root
'/'
22
/tmp
sudo

30. Contains essential devices
179
/dev
dig-x
ifconfig

31. Estimate file space usage
53
du
cat
ls

32. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/sbin
/proc
dig
grep

33. Users' home directories - containing saved files - personal settings - etc
sudo
/tmp
du -a
/home

34. Log files
kill
finger
/var/log
161

35. Downloads a file from the internet
rm
mkdir
wget
netstat -r

36. Changes ownership of a file or directory
/opt
less {filename}
ifup
chown

37. Displays system uptime
/etc
uptime
uname -a
ping

38. Kills all processes by name
23
/bin
/var/log
killall

39. Search for all Unix commands that match keyword - e.g apropos file.
apropos
110
du -a
curl

40. Prints file type
/usr
/mnt
115
file

41. Lists all files within a directory (including hidden)
pwd
kill
groupadd
ls -a

42. Check IP Addresses of active interfaces
ifup
/tmp
179
ifconfig

43. Shows who is currently logged in and where
sudo
w
cat {filename}
du -a

44. SMTP
cat > {filename}
25
df
53

45. Checks web connectivity (displays page contents)
ps
curl
w
25

46. Displays the connection media state and capabilities
/usr
sudo
ethtool
pico {filename}

47. Prints current working directory
22
wget
chgrp
pwd

48. Displays all file space usage
sudo
finger
du -a
grep '{pattern}' {file}

49. SQL
156
w
mail
pico {filename}

50. Display all interfaces
more {filename}
ifconfig -a
23
pico {filename}