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
80
/bin
fg
/boot

2. DNS
fg
mv
53
chown

3. Temporarily mounted filesystems
df
mail
killall
/mnt

4. Telnet
/lib
23
cat
53

5. Changes password for a user
/var/log
w
/lib
passwd

6. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
top
21
netstat
kill

7. SMTP
/usr
25
top
less {filename}

8. Deletes a file
cat {filename} | more
rm
killall
/var/log

9. Configuration for optional installed software
/opt
22
netstat -i
grep

10. Creates a file / updates it
22
touch
ifconfig
netstat -r

11. Secondary hierarchy for read-only user data
161
groupadd
ls
/usr

12. SQL
118
chown
usermod
cp

13. Displays Kernel information
cat {filename}
/dev
uname -a
143

14. View a text file - Like more - with extra features
history
ifconfig -a
less {filename}
mkdir

15. Mount points for removable media such as CD-ROMs
/lib
/media
23
/var

16. Displays system uptime
uptime
ls -a
25
dig

17. Moves a file with the option of renaming it
cp
25
mv
mail

18. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
finger
/bin
sudo
grep '{pattern}' {file}

19. Prints current working directory
53
pwd
grep '{pattern}' {file}
ping

20. Prints file type
killall
156
file
/tmp

21. Display all interfaces
ifconfig -a
dig-x
du -a
w

22. Reports a snapshot of the current processes
ifconfig -a
ethtool
'/'
ps

23. Changes directories
pwd
/bin
cd
killall

24. Libraries essential for the binaries in /bin/ and /sbin/
cat {filename} | more
ping
53
/lib

25. WHOIS
43
more {filename}
/bin
stat

26. Reverse dns lookup
uptime
grep '{pattern}' {file}
dig-x
more {filename}

27. Search for all Unix commands that match keyword - e.g apropos file.
history
wget
du -a
apropos

28. Displays all file space usage
du -a
53
cat > {filename}
more {filename}

29. Contains essential devices
/dev
du
du -a
w

30. dns lookup
chgrp
dig
uname -a
/etc

31. Displays kernel routing tables
netstat -r
rmdir
mv
143

32. Temporary files cleaned on reboot
page {filename}
/bin
/sbin
/tmp

33. Shows who is currently logged in and where
ifconfig -a
w
pwd
du -a

34. Displays the connection media state and capabilities
curl
netstat
ethtool
bg

35. Adds existing user to a group
usermod
21
w
/tmp

36. Check IP Addresses of active interfaces
curl
ifconfig
kill
host

37. Shows command history
ifup
history
80
/var

38. Report file system disk space usage
/opt
ifdown
df
20

39. Kills a process by pid
/home
kill
mv
156

40. Downloads a file from the internet
/boot
history
53
wget

41. HTTP
stat
80
179
ping

42. Lists all stopped/paused background. Resumes a stopped job
history
dig-x
rmdir
bg

43. Copies a file
ifconfig -a
cd
ls -a
cp

44. Displays current date and time
date
dig
rm
history

45. Test network connectivity
cat {filename} | more
ping
ethtool
/boot

46. View a text file - Use text editor and don't save.
host
110
ls
pico {filename}

47. Kerberos password
464
/boot
curl
80

48. Brings and interface down
ifdown
/root
du -a
'/'

49. Query internet name servers interactively
/bin
dig
dig-x
nslookup

50. BGP
touch
du -a
179
cal