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. Display all interfaces
/mnt
usermod
ifconfig -a
ping

2. SFTP
115
464
du -a
/dev

3. Displays the connection media state and capabilities
du -a
ethtool
/var/log
top

4. DNS
w
43
/home
53

5. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
ifup
156
/boot
pico {filename}

6. Elevate rights to that of root
443
ping
sudo
110

7. IMAP
156
53
/sbin
143

8. Libraries essential for the binaries in /bin/ and /sbin/
443
/lib
/root
/var/log

9. Brings the most recent job to the foreground
110
cat {filename}
fg
ping

10. Temporarily mounted filesystems
netstat
mail
/mnt
uname -a

11. POP3
/var
cat {filename} | more
/bin
110

12. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
stat
uname -a
/proc
nslookup

13. View a text file - Like more - with extra features
ifup
less {filename}
cat
killall

14. Brings and interface down
fg
ifdown
grep
cd

15. Kills a process by pid
/sbin
/home
kill
fg

16. Creates a directory
dig-x
touch
mkdir
25

17. Displays the 10 top lines of a file
groupadd
curl
head
mkdir

18. Moves a file with the option of renaming it
mail
mv
less {filename}
history

19. Displays user information
bg
/bin
finger
ls

20. Displays Kernel information
df
uname -a
curl
history

21. BGP
/mnt
man
fg
179

22. View a text file - Very handy with ncftp.
page {filename}
groupadd
/media
touch

23. Secondary hierarchy for read-only user data
/lib
pico {filename}
/usr
118

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

25. HTTP
du
80
443
cat

26. Ftp Data
20
/media
443
top

27. Prints file information
tail
ifconfig -a
stat
grep '{pattern}' {file}

28. HTTPS
finger
/sbin
tail
443

29. Ftp Control
80
21
156
cp

30. Parses for string
80
grep
161
date

31. Deletes a file
118
rm
cal
143

32. SMTP
25
netstat -r
history
du

33. Does a DNS lookup or reverse dns lookup
host
service
pwd
/dev

34. Telnet
less {filename}
bg
/bin
23

35. Changes ownership of a file or directory
chown
tail
'/'
fg

36. Checks web connectivity (displays page contents)
nslookup
ifdown
curl
cat

37. User root's home directory
/root
cd
du -a
25

38. Displays system uptime
ping
uptime
110
grep

39. View a text file - View file one screen at a time
/root
file
kill
cat {filename} | more

40. Test network connectivity
top
du
ping
dig-x

41. Configuration for optional installed software
usermod
/opt
dig-x
fg

42. Lists all files within a directory (including hidden)
du -a
ls -a
uptime
sudo

43. Displays the status of a service or all services
service
stat
man
bg

44. List files within a directory
page {filename}
du -a
ls
dig-x

45. Displays all file space usage
du -a
netstat -i
page {filename}
ls -a

46. Check IP Addresses of active interfaces
ifconfig
netstat
464
curl

47. Mount points for removable media such as CD-ROMs
wget
netstat -r
/media
dig

48. Removes a directory
/sbin
ls -a
rmdir
chgrp

49. Prints current working directory
pwd
apropos
/boot
tail

50. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
apropos
uptime
dig-x