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. Lists all stopped/paused background. Resumes a stopped job
/bin
115
/opt
bg

2. Test network connectivity
ping
/media
rm
stat

3. Search for all Unix commands that match keyword - e.g apropos file.
cat {filename} | more
netstat
apropos
cat > {filename}

4. Find regular expression in file.

5. Temporary files cleaned on reboot
man
/tmp
page {filename}
dig-x

6. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
fg
killall
/boot
20

7. Elevate rights to that of root
killall
sudo
mail
apropos

8. View a text file - Use text editor and don't save.
stat
pico {filename}
110
25

9. Displays current date and time
23
date
netstat -r
/tmp

10. Prints current working directory
more {filename}
pwd
tail
service

11. Displays a table of all network interfaces / errors
apropos
uptime
netstat -i
kill

12. Essential system binaries : init - ip - mount
ls -a
/sbin
ps
du

13. Reverse dns lookup
118
ls
ls -a
dig-x

14. List files within a directory
uname -a
ls
uptime
cal

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

16. Changes ownership of a file or directory
bg
pwd
chown
fg

17. Parses for string
du
/opt
less {filename}
grep

18. Displays kernel routing tables
ls -a
netstat -r
/proc
21

19. Displays system uptime
110
mv
stat
uptime

20. Log files
43
/var/log
uname -a
netstat -i

21. Estimate file space usage
rm
du
cat {filename} | more
cat > {filename}

22. SFTP
touch
finger
/var/log
115

23. HTTP
80
cat
'/'
rmdir

24. Changes directories
head
20
cd
uptime

25. Changes group ownership of file or directory
/boot
53
80
chgrp

26. Displays the connection media state and capabilities
cat {filename} | more
/dev
ethtool
usermod

27. View a text file - View file but it scrolls.
80
cat {filename}
/var/log
/bin

28. Temporarily mounted filesystems
/mnt
161
du -a
grep '{pattern}' {file}

29. SSH
grep '{pattern}' {file}
22
/home
53

30. Libraries essential for the binaries in /bin/ and /sbin/
22
ifup
/lib
cat {filename} | more

31. IMAP
uptime
143
pico {filename}
ifdown

32. Displays user information
cat > {filename}
du -a
du
finger

33. SQL
/proc
fg
156
finger

34. Moves a file with the option of renaming it
dig-x
chgrp
ls -a
mv

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

36. 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
curl
/home
groupadd

37. dns lookup
mkdir
dig
ps
/etc

38. SQL
mail
118
head
/boot

39. Displays all current running processes (similar to task manager)
22
head
/tmp
top

40. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
20
22
/mnt
netstat

41. Reports a snapshot of the current processes
cp
ps
uname -a
history

42. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
cat > {filename}
'/'
/root
dig-x

43. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/proc
rm
chgrp
/dev

44. Copies a file
grep
tail
cp
/mnt

45. Brings the most recent job to the foreground
file
ls
'/'
fg

46. WHOIS
ping
stat
43
ps

47. Adds existing user to a group
143
usermod
du -a
43

48. Ftp Control
21
464
apropos
/dev

49. Does a DNS lookup or reverse dns lookup
host
/dev
/var/log
uptime

50. User root's home directory
ls -a
/root
touch
/opt