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 Kernel information
pwd
bg
uname -a
finger

2. Ftp Control
21
cal
/sbin
passwd

3. Brings an interface up
du -a
ifup
/mnt
groupadd

4. Removes a directory
rmdir
118
/lib
cat > {filename}

5. Elevate rights to that of root
sudo
/lib
chgrp
ping

6. Search for all Unix commands that match keyword - e.g apropos file.
118
115
apropos
cal

7. Temporary files cleaned on reboot
/usr
/tmp
passwd
nslookup

8. View a text file - View file but it scrolls.
/etc
dig-x
179
cat {filename}

9. 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.
rm
passwd
/var
/media

10. Displays calendar
118
apropos
cal
fg

11. SQL
156
head
dig
dig-x

12. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
ifdown
cat > {filename}
115
finger

13. Moves a file with the option of renaming it
/mnt
/boot
mv
ls -a

14. Lists all stopped/paused background. Resumes a stopped job
bg
cp
touch
groupadd

15. Reports a snapshot of the current processes
netstat -r
cat {filename}
chgrp
ps

16. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
nslookup
23
/proc
cat

17. Creates a group for users
groupadd
finger
top
usermod

18. Prints file type
netstat -r
file
du
/sbin

19. Parses for string
w
/boot
21
grep

20. Essential system binaries : init - ip - mount
/opt
/sbin
161
110

21. Adds existing user to a group
df
ps
usermod
uptime

22. Lists all files within a directory (including hidden)
ls -a
/tmp
netstat -r
grep '{pattern}' {file}

23. View a text file - Use text editor and don't save.
43
ifconfig
du -a
pico {filename}

24. Changes password for a user
touch
passwd
cat > {filename}
23

25. HTTPS
/bin
443
ifup
dig-x

26. Displays kernel routing tables
netstat -r
20
groupadd
/var/log

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

28. Find regular expression in file.

29. Checks web connectivity (displays page contents)
mv
history
dig
curl

30. Estimate file space usage
host
killall
ping
du

31. Check IP Addresses of active interfaces
ifconfig
head
179
156

32. Displays the status of a service or all services
ifdown
head
20
service

33. View a text file - View file one screen at a time
ifup
rm
more {filename}
top

34. POP3
passwd
110
chgrp
25

35. List files within a directory
grep
25
ls
w

36. Does a DNS lookup or reverse dns lookup
dig
ethtool
cd
host

37. Displays the 10 top lines of a file
usermod
touch
head
uname -a

38. Kerberos password
464
bg
wget
43

39. Displays system uptime
cp
uptime
156
chgrp

40. Prints file information
du
file
apropos
stat

41. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
head
wget
chown

42. DNS
/boot
bg
53
uptime

43. SQL
mail
118
23
/var/log

44. Prints current working directory
/mnt
rmdir
ifup
pwd

45. Configuration for optional installed software
killall
110
/opt
more {filename}

46. Telnet
/lib
/etc
cat {filename}
23

47. SFTP
115
kill
killall
man

48. Displays a table of all network interfaces / errors
netstat -i
143
cat > {filename}
passwd

49. Copies a file
head
du -a
cp
/opt

50. Shows who is currently logged in and where
w
/home
179
118