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
netstat
/sbin
fg
22

2. Mount points for removable media such as CD-ROMs
43
/media
mv
netstat -r

3. Displays manual or help document for a command/application
du -a
man
head
grep '{pattern}' {file}

4. Ftp Control
top
21
netstat -i
touch

5. IMAP
143
cat
mail
/bin

6. Display all interfaces
ifdown
cd
host
ifconfig -a

7. View a text file - View file one screen at a time
w
cat {filename} | more
history
pwd

8. 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.
cat {filename} | more
du -a
/var
80

9. Log files
netstat
/var/log
/media
df

10. Secondary hierarchy for read-only user data
110
uptime
date
/usr

11. Libraries essential for the binaries in /bin/ and /sbin/
cd
/var/log
/lib
head

12. Displays the 10 top lines of a file
head
tail
/bin
/var

13. Prints current working directory
pwd
/media
110
/var

14. Host-specific system-wide configuration files
/etc
service
date
df

15. Temporary files cleaned on reboot
/sbin
/tmp
pico {filename}
ls

16. Elevate rights to that of root
passwd
less {filename}
sudo
ethtool

17. Reverse dns lookup
110
dig-x
df
ifup

18. Shows who is currently logged in and where
bg
/usr
w
netstat

19. Users' home directories - containing saved files - personal settings - etc
chown
ifdown
/home
stat

20. View a text file - Use text editor and don't save.
top
wget
179
pico {filename}

21. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
ps
dig
/root
mail

22. View a text file - View file one screen at a time
w
dig-x
more {filename}
finger

23. Displays all current running processes (similar to task manager)
top
ethtool
rmdir
/bin

24. Displays a table of all network interfaces / errors
uptime
netstat -i
22
/root

25. Displays current date and time
man
cat {filename} | more
dig
date

26. SNMP
161
21
bg
w

27. SQL
156
top
22
/etc

28. View a text file - View file but it scrolls.
cp
cat {filename}
mkdir
cal

29. Lists all stopped/paused background. Resumes a stopped job
mv
killall
bg
23

30. Creates a directory
mkdir
cd
/boot
/tmp

31. Shows command history
cat {filename} | more
443
history
mail

32. Changes password for a user
passwd
ifconfig -a
43
head

33. SFTP
23
ps
115
history

34. Changes group ownership of file or directory
date
chgrp
service
156

35. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
/opt
file
ls -a

36. Adds existing user to a group
usermod
curl
kill
25

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

38. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
netstat -i
464
rmdir
cat > {filename}

39. Checks web connectivity (displays page contents)
netstat -i
page {filename}
curl
161

40. List files within a directory
service
cat {filename} | more
ls
du -a

41. Changes directories
cd
179
apropos
143

42. View a text file - Very handy with ncftp.
/lib
page {filename}
less {filename}
mv

43. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
156
stat
dig

44. Report file system disk space usage
/tmp
df
cd
mail

45. Displays Kernel information
cat > {filename}
ifup
uname -a
netstat -i

46. Essential system binaries : init - ip - mount
pico {filename}
ls -a
cp
/sbin

47. Reports a snapshot of the current processes
/home
21
ps
uptime

48. Creates a group for users
/usr
443
22
groupadd

49. Deletes a file
/var/log
mv
161
rm

50. Brings and interface down
ifdown
/etc
date
mail