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. Displays manual or help document for a command/application
/var/log
bg
cat {filename} | more
man

2. HTTP
20
/sbin
80
cat {filename}

3. HTTPS
/lib
mkdir
page {filename}
443

4. SSH
22
df
touch
finger

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

6. Temporary files cleaned on reboot
/opt
ifup
/tmp
cat {filename} | more

7. Displays all current running processes (similar to task manager)
bg
dig-x
/home
top

8. Users' home directories - containing saved files - personal settings - etc
/mnt
/media
killall
/home

9. Temporarily mounted filesystems
top
/mnt
pwd
23

10. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
uptime
curl
chown

11. Shows command history
history
ifdown
25
/media

12. Log files
/var/log
cat {filename} | more
ls
ps

13. Configuration for optional installed software
/opt
ifdown
'/'
netstat -i

14. Creates a group for users
ifconfig
/sbin
mail
groupadd

15. Kills all processes by name
25
killall
mail
dig-x

16. Prints contains of text file
ethtool
rm
cat > {filename}
cat

17. Report file system disk space usage
df
25
apropos
date

18. Reverse dns lookup
21
dig-x
/home
grep '{pattern}' {file}

19. SFTP
uname -a
115
/bin
kill

20. Changes password for a user
/dev
passwd
ls -a
w

21. Creates a file / updates it
touch
23
service
stat

22. Shows who is currently logged in and where
w
143
156
20

23. Check IP Addresses of active interfaces
ps
53
nslookup
ifconfig

24. Displays the connection media state and capabilities
118
/media
ethtool
/dev

25. Estimate file space usage
/etc
du
443
tail

26. SMTP
date
25
chgrp
kill

27. Prints current working directory
/boot
cat {filename}
rm
pwd

28. Kills a process by pid
w
kill
118
wget

29. Does a DNS lookup or reverse dns lookup
chown
118
ifup
host

30. Removes a directory
rmdir
/opt
ifup
dig

31. Elevate rights to that of root
tail
443
sudo
ifdown

32. Ftp Data
cat > {filename}
443
/boot
20

33. Secondary hierarchy for read-only user data
118
/usr
110
dig

34. View a text file - Use text editor and don't save.
history
23
cat > {filename}
pico {filename}

35. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
cat > {filename}
143
cd
history

36. Lists all files within a directory (including hidden)
w
80
du -a
ls -a

37. Displays calendar
du
464
cal
/tmp

38. Ftp Control
21
netstat -r
groupadd
115

39. Contains essential devices
grep '{pattern}' {file}
tail
ls
/dev

40. Kerberos password
118
sudo
23
464

41. dns lookup
dig
ps
du -a
passwd

42. View a text file - Like more - with extra features
usermod
ifconfig
pwd
less {filename}

43. POP3
110
tail
/home
head

44. View a text file - Very handy with ncftp.
cat
passwd
bg
page {filename}

45. Prints file information
touch
ls -a
cal
stat

46. SNMP
161
ifup
80
host

47. Lists all stopped/paused background. Resumes a stopped job
bg
service
179
du -a

48. Displays the 10 top lines of a file
head
/usr
'/'
ifup

49. Reports a snapshot of the current processes
ps
118
chgrp
du -a

50. Displays Kernel information
uname -a
killall
161
cat > {filename}