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. Brings the most recent job to the foreground
fg
cat
date
groupadd

2. Check IP Addresses of active interfaces
/var/log
/lib
ifconfig
sudo

3. Displays a table of all network interfaces / errors
ifdown
chgrp
file
netstat -i

4. SQL
118
date
more {filename}
/media

5. Lists all stopped/paused background. Resumes a stopped job
bg
ifconfig
wget
dig

6. Brings an interface up
rmdir
file
ifup
top

7. Search for all Unix commands that match keyword - e.g apropos file.
history
115
apropos
156

8. Copies a file
cp
/opt
/var/log
netstat -r

9. Essential system binaries : init - ip - mount
chgrp
/sbin
kill
110

10. View a text file - Very handy with ncftp.
20
464
killall
page {filename}

11. Displays user information
mail
fg
wget
finger

12. Kills all processes by name
service
killall
179
netstat

13. Displays Kernel information
'/'
110
/usr
uname -a

14. Displays all current running processes (similar to task manager)
top
history
netstat -i
/root

15. Find regular expression in file.

16. dns lookup
more {filename}
156
dig
/root

17. Changes ownership of a file or directory
dig-x
mail
groupadd
chown

18. Log files
head
/var/log
/opt
grep

19. Displays calendar
mail
cal
/media
man

20. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
finger
rm
netstat
/boot

21. Secondary hierarchy for read-only user data
/usr
43
df
/bin

22. Does a DNS lookup or reverse dns lookup
wget
cat > {filename}
netstat -i
host

23. Libraries essential for the binaries in /bin/ and /sbin/
bg
chown
80
/lib

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

25. User root's home directory
killall
/root
21
uname -a

26. Displays system uptime
143
uptime
mv
443

27. Contains essential devices
netstat
ls
/dev
kill

28. Prints file information
/media
stat
grep
/proc

29. SSH
uname -a
22
/proc
53

30. Changes password for a user
sudo
cat {filename} | more
464
passwd

31. DNS
/bin
53
/media
23

32. Creates a directory
head
118
history
mkdir

33. Displays manual or help document for a command/application
cat {filename} | more
ethtool
464
man

34. Displays the 10 bottom lines of a file
464
53
tail
ethtool

35. View a text file - Like more - with extra features
less {filename}
netstat -i
dig-x
mkdir

36. SFTP
ifconfig -a
115
ps
/home

37. Displays all file space usage
cat
cd
du -a
tail

38. Temporarily mounted filesystems
/mnt
cat
/sbin
cp

39. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
/proc
kill
/bin
cd

40. SNMP
443
ifconfig -a
161
/boot

41. Report file system disk space usage
23
killall
df
man

42. Shows who is currently logged in and where
chown
w
143
161

43. Creates a group for users
netstat -i
rmdir
groupadd
cd

44. Displays the connection media state and capabilities
161
/proc
finger
ethtool

45. Moves a file with the option of renaming it
grep
/lib
mv
mkdir

46. HTTPS
/home
file
443
118

47. Host-specific system-wide configuration files
/etc
cat > {filename}
netstat -i
/bin

48. Estimate file space usage
du
80
page {filename}
cp

49. Displays kernel routing tables
ethtool
mv
cal
netstat -r

50. Prints contains of text file
118
443
rm
cat