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
156
df
rmdir
w

2. Query internet name servers interactively
pwd
cp
110
nslookup

3. Ftp Control
fg
ethtool
sudo
21

4. Temporary files cleaned on reboot
/tmp
/var
head
w

5. Telnet
man
23
cd
cal

6. Prints file type
stat
du
cp
file

7. Estimate file space usage
netstat
man
cp
du

8. Log files
53
ifconfig
/var/log
/opt

9. Report file system disk space usage
df
/tmp
/opt
110

10. Moves a file with the option of renaming it
mv
/media
443
wget

11. Reverse dns lookup
grep '{pattern}' {file}
df
dig-x
ifconfig

12. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
/etc
top
/bin
115

13. Check IP Addresses of active interfaces
443
ifconfig
ping
53

14. Changes group ownership of file or directory
/proc
chgrp
stat
rm

15. Copies a file
cd
rm
cp
touch

16. Lists all files within a directory (including hidden)
ifconfig
/media
ls -a
service

17. Brings an interface up
ifup
df
stat
/usr

18. SQL
'/'
netstat
118
curl

19. User root's home directory
/root
netstat -r
uname -a
apropos

20. Displays the 10 bottom lines of a file
uptime
tail
chown
20

21. Creates a file / updates it
/bin
mail
touch
host

22. Displays current date and time
ping
date
cal
115

23. DNS
110
53
ifconfig
service

24. Changes password for a user
history
cat
cat {filename}
passwd

25. POP3
43
80
110
more {filename}

26. Brings the most recent job to the foreground
ifup
fg
apropos
usermod

27. Contains essential devices
pwd
/dev
179
apropos

28. Displays a table of all network interfaces / errors
ls
du -a
netstat -i
dig

29. Checks web connectivity (displays page contents)
21
uname -a
ethtool
curl

30. IMAP
143
w
stat
touch

31. Shows who is currently logged in and where
/home
cd
w
grep '{pattern}' {file}

32. Changes ownership of a file or directory
sudo
usermod
chown
161

33. 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.
22
/dev
df
/var

34. Deletes a file
cal
/dev
rm
netstat

35. View a text file - View file but it scrolls.
/boot
host
cat {filename}
tail

36. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
ping
tail
161

37. Creates a group for users
grep '{pattern}' {file}
netstat -r
groupadd
cp

38. Displays kernel routing tables
netstat
du
rmdir
netstat -r

39. Displays the status of a service or all services
netstat
service
/boot
ethtool

40. SSH
/boot
ls -a
less {filename}
22

41. Adds existing user to a group
usermod
netstat -r
chown
/root

42. Displays manual or help document for a command/application
/var
date
161
man

43. Temporarily mounted filesystems
80
more {filename}
/mnt
file

44. Configuration for optional installed software
mail
ifdown
rm
/opt

45. View a text file - Very handy with ncftp.
page {filename}
23
20
more {filename}

46. Display all interfaces
161
143
ifdown
ifconfig -a

47. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
ps
118
dig
cat > {filename}

48. Host-specific system-wide configuration files
443
/etc
wget
20

49. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
53
cat {filename}
/proc
apropos

50. Root directory of file system (not the user root's home dir)
'/'