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

2. Ftp Data
464
20
156
cat {filename}

3. Prints file information
143
pwd
/dev
stat

4. Changes password for a user
156
passwd
ifconfig
/usr

5. Brings the most recent job to the foreground
/sbin
/media
ifup
fg

6. Brings an interface up
finger
ifup
464
cat {filename}

7. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
mkdir
20
/boot
80

8. Shows who is currently logged in and where
/bin
w
ping
464

9. View a text file - View file but it scrolls.
netstat -r
cat {filename}
service
mail

10. Temporarily mounted filesystems
/mnt
history
/dev
uptime

11. SSH
22
wget
/bin
apropos

12. Displays calendar
uptime
uname -a
cal
20

13. Displays the 10 bottom lines of a file
man
ifconfig -a
host
tail

14. HTTPS
finger
netstat -r
443
cat

15. Removes a directory
head
/tmp
22
rmdir

16. Find regular expression in file.

17. Deletes a file
443
rm
rmdir
161

18. Displays all current running processes (similar to task manager)
/mnt
top
grep '{pattern}' {file}
ls

19. View a text file - Very handy with ncftp.
du
netstat -r
page {filename}
ping

20. Does a DNS lookup or reverse dns lookup
host
more {filename}
top
/home

21. Adds existing user to a group
/home
wget
ethtool
usermod

22. Displays Kernel information
uname -a
mail
ping
nslookup

23. Essential system binaries : init - ip - mount
ifconfig -a
netstat -r
top
/sbin

24. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
/lib
less {filename}
mail
ls

25. Temporary files cleaned on reboot
/tmp
pico {filename}
cat {filename} | more
mv

26. POP3
161
mkdir
110
ifup

27. View a text file - Use text editor and don't save.
pico {filename}
df
pwd
179

28. Kills a process by pid
179
kill
ls -a
ps

29. Kerberos password
ifdown
ping
head
464

30. Checks web connectivity (displays page contents)
touch
/media
rm
curl

31. Reverse dns lookup
ls -a
dig-x
ps
bg

32. Moves a file with the option of renaming it
mv
cat
mkdir
ps

33. Copies a file
cp
80
uname -a
less {filename}

34. Search for all Unix commands that match keyword - e.g apropos file.
dig
apropos
ps
passwd

35. SQL
/etc
118
apropos
stat

36. SFTP
/opt
115
date
passwd

37. Host-specific system-wide configuration files
/proc
/bin
cat
/etc

38. Configuration for optional installed software
/opt
chgrp
/media
usermod

39. Libraries essential for the binaries in /bin/ and /sbin/
cd
groupadd
/lib
ifdown

40. Displays user information
'/'
finger
43
file

41. Creates a file / updates it
uptime
touch
/lib
apropos

42. Mount points for removable media such as CD-ROMs
/opt
/media
ping
20

43. Secondary hierarchy for read-only user data
/usr
/root
pwd
bg

44. Check IP Addresses of active interfaces
grep '{pattern}' {file}
less {filename}
ls
ifconfig

45. View a text file - Like more - with extra features
grep '{pattern}' {file}
less {filename}
bg
pwd

46. Reports a snapshot of the current processes
ps
179
man
25

47. Brings and interface down
bg
ifdown
161
ps

48. Displays current date and time
grep '{pattern}' {file}
118
man
date

49. Test network connectivity
179
ping
464
/dev

50. Kills all processes by name
uptime
cat {filename}
mv
killall