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. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
mkdir
grep '{pattern}' {file}
host
cat > {filename}

2. Adds existing user to a group
passwd
apropos
usermod
curl

3. SMTP
mail
25
/dev
cat {filename} | more

4. SQL
/usr
20
118
22

5. Query internet name servers interactively
host
143
nslookup
du

6. Shows who is currently logged in and where
host
w
/var/log
cat

7. Host-specific system-wide configuration files
179
pwd
ifdown
/etc

8. Brings the most recent job to the foreground
118
fg
/dev
mkdir

9. Creates a group for users
w
stat
head
groupadd

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

11. View a text file - View file one screen at a time
/bin
passwd
115
cat {filename} | more

12. Contains essential devices
/dev
110
/mnt
ifup

13. Parses for string
grep
/home
uname -a
pico {filename}

14. IMAP
143
/var/log
/lib
fg

15. View a text file - Like more - with extra features
less {filename}
118
ping
history

16. POP3
/sbin
ifconfig
110
/mnt

17. 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.
/var
finger
161
/usr

18. Prints current working directory
/var/log
cd
pwd
110

19. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
apropos
mail
stat
ethtool

20. WHOIS
/mnt
43
sudo
w

21. BGP
ps
179
/media
grep

22. Reports a snapshot of the current processes
ps
apropos
fg
pwd

23. Brings and interface down
pwd
/home
usermod
ifdown

24. Displays current date and time
/lib
usermod
date
chgrp

25. Displays user information
ifup
df
finger
killall

26. Does a DNS lookup or reverse dns lookup
host
cat {filename}
25
groupadd

27. Displays system uptime
mv
uptime
nslookup
cat

28. Displays the connection media state and capabilities
/dev
netstat -i
ethtool
22

29. Report file system disk space usage
df
'/'
/boot
bg

30. View a text file - View file one screen at a time
/var/log
host
/home
more {filename}

31. Check IP Addresses of active interfaces
cal
ifconfig
cat {filename}
/opt

32. Moves a file with the option of renaming it
uptime
passwd
mv
/mnt

33. Elevate rights to that of root
nslookup
sudo
netstat
man

34. Displays kernel routing tables
ls -a
cp
netstat -r
rmdir

35. Prints file type
cat {filename}
more {filename}
page {filename}
file

36. Displays all file space usage
cp
du -a
cat {filename}
/usr

37. View a text file - Very handy with ncftp.
grep
53
df
page {filename}

38. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
pwd
/proc
/usr
ifconfig

39. SQL
/etc
/media
156
80

40. Changes ownership of a file or directory
chown
head
/var
usermod

41. Displays the status of a service or all services
/mnt
service
bg
ethtool

42. View a text file - Use text editor and don't save.
pico {filename}
grep
chown
history

43. Reverse dns lookup
chgrp
bg
ifconfig
dig-x

44. Displays the 10 bottom lines of a file
tail
23
pwd
/etc

45. Shows command history
killall
history
rm
ls

46. Downloads a file from the internet
date
wget
touch
rm

47. Find regular expression in file.

48. SNMP
161
du
dig-x
chown

49. Test network connectivity
rm
sudo
ping
service

50. Kills a process by pid
kill
/usr
date
/bin