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. Temporarily mounted filesystems
tail
/dev
443
/mnt

2. Check IP Addresses of active interfaces
43
bg
110
ifconfig

3. Configuration for optional installed software
cat
/opt
cat {filename}
20

4. Reports a snapshot of the current processes
/boot
ps
head
/opt

5. DNS
pwd
ls -a
groupadd
53

6. Displays Kernel information
uname -a
sudo
uptime
22

7. Brings an interface up
110
ifup
grep '{pattern}' {file}
touch

8. Displays the connection media state and capabilities
du -a
ifdown
ethtool
/proc

9. Secondary hierarchy for read-only user data
mail
/usr
groupadd
du -a

10. View a text file - Like more - with extra features
mv
less {filename}
pico {filename}
grep '{pattern}' {file}

11. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
23
/bin
179

12. Changes group ownership of file or directory
chgrp
rm
/opt
ps

13. Creates a group for users
443
file
groupadd
/opt

14. Kills a process by pid
curl
ifup
rm
kill

15. Shows who is currently logged in and where
/media
passwd
/home
w

16. Elevate rights to that of root
sudo
ls -a
23
20

17. Checks web connectivity (displays page contents)
/bin
curl
/dev
143

18. Test network connectivity
ifconfig -a
grep
ping
43

19. View a text file - Use text editor and don't save.
/sbin
pico {filename}
head
/lib

20. Does a DNS lookup or reverse dns lookup
file
service
host
mkdir

21. SSH
156
kill
53
22

22. 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.
ifconfig -a
/root
/var
rm

23. Displays current date and time
wget
pwd
/home
date

24. Changes password for a user
chgrp
161
20
passwd

25. Removes a directory
cal
rmdir
more {filename}
ps

26. Contains essential devices
rmdir
/dev
passwd
25

27. Telnet
'/'
23
/tmp
page {filename}

28. POP3
mkdir
tail
mail
110

29. Find regular expression in file.

30. Creates a file / updates it
ifup
ps
apropos
touch

31. Displays the status of a service or all services
mkdir
/dev
service
killall

32. SFTP
chown
115
cp
netstat -r

33. Essential system binaries : init - ip - mount
nslookup
/sbin
/var/log
22

34. Prints contains of text file
cat
mkdir
/lib
22

35. Query internet name servers interactively
ethtool
443
/var
nslookup

36. Displays the 10 top lines of a file
pwd
/var/log
head
464

37. Kills all processes by name
/var
/root
killall
file

38. Mount points for removable media such as CD-ROMs
nslookup
/media
ifup
156

39. User root's home directory
53
killall
/root
ls

40. Prints current working directory
cat {filename}
pwd
118
netstat -i

41. Changes directories
sudo
/etc
groupadd
cd

42. Temporary files cleaned on reboot
/tmp
killall
sudo
/var/log

43. Brings and interface down
ifdown
more {filename}
usermod
23

44. SQL
grep '{pattern}' {file}
23
ifup
156

45. Displays kernel routing tables
chown
tail
netstat -r
dig

46. HTTPS
file
20
443
pwd

47. View a text file - Very handy with ncftp.
443
page {filename}
/opt
groupadd

48. Estimate file space usage
'/'
/bin
/lib
du

49. Reverse dns lookup
mkdir
dig-x
netstat -i
less {filename}

50. BGP
/home
cd
179
/opt