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 file / updates it
ethtool
pwd
curl
touch

2. POP3
53
/root
chown
110

3. Changes group ownership of file or directory
more {filename}
chgrp
/proc
443

4. Adds existing user to a group
rm
usermod
/lib
file

5. Prints file type
file
dig
killall
/mnt

6. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/proc
cat
kill
finger

7. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
ifconfig
179
file
/bin

8. SMTP
/proc
25
53
chgrp

9. SNMP
143
161
df
pwd

10. Essential system binaries : init - ip - mount
/root
mail
/sbin
53

11. Displays the connection media state and capabilities
man
ls
ethtool
/etc

12. Search for all Unix commands that match keyword - e.g apropos file.
apropos
179
/media
mkdir

13. Kills all processes by name
head
/var
killall
ifup

14. Query internet name servers interactively
ifdown
ping
nslookup
ls -a

15. List files within a directory
touch
ls
pico {filename}
rm

16. Changes directories
22
cd
wget
'/'

17. Find regular expression in file.

18. Changes ownership of a file or directory
uptime
/media
chown
143

19. Displays manual or help document for a command/application
110
netstat -r
man
cat > {filename}

20. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
ps
dig-x
161
/boot

21. View a text file - View file but it scrolls.
sudo
115
cat {filename}
'/'

22. Reverse dns lookup
/var/log
usermod
dig-x
/bin

23. Moves a file with the option of renaming it
mv
443
/lib
du -a

24. Brings the most recent job to the foreground
du
/proc
fg
history

25. Creates a group for users
mkdir
groupadd
chgrp
passwd

26. Brings an interface up
ifup
156
ping
pwd

27. SFTP
115
156
usermod
23

28. HTTPS
mv
443
ping
464

29. Configuration for optional installed software
chown
/opt
/usr
netstat -r

30. Secondary hierarchy for read-only user data
date
killall
/usr
cat > {filename}

31. 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.
/sbin
118
/var
'/'

32. Host-specific system-wide configuration files
netstat -r
/etc
date
/bin

33. Lists all files within a directory (including hidden)
ls -a
/home
ifup
cat {filename}

34. Creates a directory
mkdir
tail
443
pico {filename}

35. Changes password for a user
/var
passwd
uptime
cat

36. Estimate file space usage
21
/root
/var
du

37. Downloads a file from the internet
wget
cat {filename} | more
more {filename}
/etc

38. WHOIS
nslookup
43
cat
/opt

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

40. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
156
man
netstat
grep

41. Prints current working directory
cat
/lib
ifup
pwd

42. View a text file - Like more - with extra features
less {filename}
bg
/lib
cat > {filename}

43. SQL
/etc
464
118
netstat -r

44. Shows who is currently logged in and where
chown
finger
w
less {filename}

45. SSH
du -a
cat
/sbin
22

46. Users' home directories - containing saved files - personal settings - etc
23
/home
du -a
/mnt

47. Copies a file
23
cp
dig
43

48. Kills a process by pid
touch
usermod
161
kill

49. Displays all file space usage
du -a
chgrp
cd
/opt

50. Temporarily mounted filesystems
dig
nslookup
/mnt
date