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. Users' home directories - containing saved files - personal settings - etc
/sbin
/home
service
/var

2. Elevate rights to that of root
netstat
du -a
115
sudo

3. Temporarily mounted filesystems
/mnt
pwd
cat
53

4. Telnet
/root
23
/dev
file

5. Displays kernel routing tables
cat > {filename}
netstat -r
ethtool
nslookup

6. SMTP
80
killall
25
top

7. SSH
22
curl
ps
/media

8. Changes directories
cat {filename} | more
/bin
cd
netstat -i

9. Checks web connectivity (displays page contents)
/bin
curl
464
chown

10. User root's home directory
/home
cal
/root
usermod

11. WHOIS
80
179
43
w

12. Kerberos password
less {filename}
pwd
464
/proc

13. Moves a file with the option of renaming it
mv
464
/lib
20

14. View a text file - Very handy with ncftp.
cat {filename} | more
top
nslookup
page {filename}

15. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
rm
cat {filename} | more
/bin
21

16. Displays the 10 top lines of a file
43
ls
head
/tmp

17. HTTP
80
more {filename}
/home
grep '{pattern}' {file}

18. Parses for string
ps
cal
df
grep

19. POP3
/var
/proc
110
mv

20. Prints contains of text file
/dev
cat
53
43

21. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
cal
22
/proc
/var/log

22. Displays the 10 bottom lines of a file
/var
25
tail
chown

23. Displays user information
wget
finger
history
chown

24. Changes password for a user
179
killall
passwd
ethtool

25. Lists all stopped/paused background. Resumes a stopped job
dig-x
du
bg
ifconfig

26. Search for all Unix commands that match keyword - e.g apropos file.
cp
stat
apropos
host

27. Host-specific system-wide configuration files
grep '{pattern}' {file}
/etc
head
nslookup

28. Test network connectivity
head
/bin
ping
443

29. Log files
cd
dig-x
man
/var/log

30. Displays Kernel information
curl
/home
ls
uname -a

31. View a text file - View file one screen at a time
more {filename}
file
/lib
ifdown

32. View a text file - View file one screen at a time
/opt
161
/var
cat {filename} | more

33. Displays all file space usage
w
464
top
du -a

34. Estimate file space usage
/opt
ls
du
head

35. Prints file information
more {filename}
stat
161
chown

36. Secondary hierarchy for read-only user data
du -a
fg
page {filename}
/usr

37. Displays calendar
443
cat {filename} | more
cal
dig

38. Ftp Control
ethtool
21
/dev
110

39. Adds existing user to a group
/var/log
usermod
ifconfig
tail

40. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
mkdir
netstat
179
uptime

41. View a text file - View file but it scrolls.
80
cat {filename}
/bin
top

42. Displays a table of all network interfaces / errors
ifconfig -a
w
netstat -i
finger

43. DNS
53
ifconfig -a
/media
rmdir

44. Copies a file
ifconfig -a
du -a
cp
chgrp

45. SQL
mail
ifconfig
118
netstat -r

46. SNMP
page {filename}
top
groupadd
161

47. Reverse dns lookup
dig-x
chown
179
killall

48. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
dig
cat > {filename}
ifconfig -a
22

49. Contains essential devices
curl
/dev
file
top

50. Check IP Addresses of active interfaces
ifconfig
ifconfig -a
rm
ls