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. Creates a directory
mkdir
/usr
/media
ethtool

2. Temporarily mounted filesystems
/mnt
host
143
cp

3. Telnet
23
/usr
ifconfig -a
ls

4. Test network connectivity
ping
ls -a
/opt
df

5. Ftp Data
date
/usr
143
20

6. SQL
passwd
118
grep '{pattern}' {file}
143

7. Host-specific system-wide configuration files
/etc
22
53
25

8. Kills a process by pid
cal
cat > {filename}
23
kill

9. BGP
rm
179
ls
rmdir

10. Changes ownership of a file or directory
df
chown
netstat
179

11. Displays the 10 top lines of a file
ping
head
161
ls -a

12. User root's home directory
service
uname -a
/root
ls

13. Copies a file
grep
history
cp
groupadd

14. SMTP
443
/sbin
grep '{pattern}' {file}
25

15. Users' home directories - containing saved files - personal settings - etc
mail
80
nslookup
/home

16. Mount points for removable media such as CD-ROMs
/media
cal
page {filename}
20

17. Display all interfaces
ifconfig -a
cp
man
/mnt

18. Changes password for a user
cat
passwd
110
usermod

19. Estimate file space usage
grep
less {filename}
du
cd

20. View a text file - Very handy with ncftp.
page {filename}
cat
netstat -i
/tmp

21. HTTP
top
80
/dev
mv

22. Lists all files within a directory (including hidden)
ls -a
ifup
143
page {filename}

23. Creates a file / updates it
apropos
touch
20
ifdown

24. View a text file - Like more - with extra features
uptime
less {filename}
mail
tail

25. Displays manual or help document for a command/application
pico {filename}
kill
less {filename}
man

26. Displays user information
finger
date
cat > {filename}
/etc

27. Displays system uptime
dig-x
ifconfig
uptime
23

28. Creates a group for users
netstat -r
groupadd
/var
head

29. Secondary hierarchy for read-only user data
cat {filename} | more
'/'
/usr
stat

30. Configuration for optional installed software
grep
groupadd
/opt
'/'

31. Reverse dns lookup
/var
ls
dig-x
ifup

32. Displays calendar
cal
'/'
156
ethtool

33. Check IP Addresses of active interfaces
du -a
53
179
ifconfig

34. SSH
22
/root
kill
143

35. Brings an interface up
ifup
host
/usr
mail

36. Brings the most recent job to the foreground
netstat -r
25
mail
fg

37. DNS
/usr
ls -a
grep
53

38. Contains essential devices
/dev
du
cd
pico {filename}

39. Prints file type
143
file
stat
115

40. Changes group ownership of file or directory
ifconfig
chgrp
wget
apropos

41. View a text file - View file one screen at a time
/opt
top
20
more {filename}

42. Report file system disk space usage
df
/tmp
cat > {filename}
chown

43. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
/bin
143
/mnt
mkdir

44. IMAP
/root
groupadd
20
143

45. Prints file information
118
stat
grep
53

46. Shows command history
sudo
history
ping
grep

47. Displays all current running processes (similar to task manager)
ifconfig
ping
cat > {filename}
top

48. Search for all Unix commands that match keyword - e.g apropos file.
apropos
cat {filename} | more
/sbin
rmdir

49. Prints contains of text file
mkdir
fg
/etc
cat

50. Adds existing user to a group
/bin
usermod
du
53