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. Essential system binaries : init - ip - mount
/mnt
tail
rmdir
/sbin

2. Deletes a file
pico {filename}
bg
rm
uname -a

3. Changes password for a user
bg
cat {filename} | more
passwd
dig-x

4. Displays the connection media state and capabilities
less {filename}
ethtool
man
cd

5. Temporary files cleaned on reboot
less {filename}
/tmp
chown
head

6. View a text file - View file one screen at a time
cat {filename}
/lib
110
cat {filename} | more

7. Prints current working directory
pwd
groupadd
usermod
page {filename}

8. Reverse dns lookup
53
du
dig-x
w

9. Kills a process by pid
179
grep '{pattern}' {file}
cat > {filename}
kill

10. Changes group ownership of file or directory
less {filename}
/opt
chgrp
apropos

11. Displays calendar
/bin
service
156
cal

12. Query internet name servers interactively
curl
less {filename}
nslookup
/root

13. HTTPS
grep
/bin
443
25

14. Prints file information
stat
sudo
/media
43

15. SQL
ethtool
156
groupadd
53

16. SSH
cal
passwd
chgrp
22

17. Configuration for optional installed software
du
/opt
sudo
netstat -i

18. Host-specific system-wide configuration files
rm
143
page {filename}
/etc

19. Changes ownership of a file or directory
top
chown
/bin
/proc

20. Secondary hierarchy for read-only user data
service
/usr
161
nslookup

21. Creates a file / updates it
touch
file
ethtool
/sbin

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

23. Prints file type
/sbin
pwd
mv
file

24. Displays system uptime
netstat
man
grep
uptime

25. Estimate file space usage
du
mail
top
grep

26. Brings and interface down
netstat -i
more {filename}
ping
ifdown

27. Search for all Unix commands that match keyword - e.g apropos file.
apropos
grep '{pattern}' {file}
143
date

28. SQL
cat {filename} | more
more {filename}
118
netstat -i

29. Log files
cp
mail
man
/var/log

30. SMTP
53
161
25
/etc

31. Parses for string
du -a
/dev
grep
finger

32. SFTP
host
nslookup
115
date

33. Moves a file with the option of renaming it
ethtool
mv
/boot
sudo

34. Telnet
uname -a
less {filename}
23
history

35. Displays a table of all network interfaces / errors
more {filename}
netstat -r
dig
netstat -i

36. WHOIS
'/'
kill
ps
43

37. User root's home directory
ps
/root
/home
w

38. View a text file - View file one screen at a time
more {filename}
110
143
page {filename}

39. Does a DNS lookup or reverse dns lookup
mkdir
host
netstat -i
top

40. BGP
mail
25
179
443

41. IMAP
/home
groupadd
143
apropos

42. Ftp Data
20
du -a
host
ls -a

43. Report file system disk space usage
/home
/bin
df
cal

44. Users' home directories - containing saved files - personal settings - etc
groupadd
grep '{pattern}' {file}
/home
rmdir

45. Changes directories
stat
cd
rmdir
rm

46. Libraries essential for the binaries in /bin/ and /sbin/
/lib
more {filename}
ps
top

47. Displays kernel routing tables
cat > {filename}
usermod
netstat -r
/home

48. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
/root
/usr
netstat
ls

49. Shows command history
history
man
ethtool
53

50. Displays user information
date
netstat
finger
ls