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. Prints file information
stat
/boot
ls -a
22

2. User root's home directory
cat {filename} | more
bg
161
/root

3. HTTPS
mkdir
443
service
dig

4. Checks web connectivity (displays page contents)
netstat -r
/home
chgrp
curl

5. Log files
cat {filename} | more
/var/log
grep '{pattern}' {file}
115

6. Brings and interface down
25
ifdown
apropos
tail

7. Creates a group for users
groupadd
passwd
21
/opt

8. List files within a directory
23
netstat -r
ls
pwd

9. Displays kernel routing tables
'/'
/usr
bg
netstat -r

10. Prints contains of text file
cat
history
ifup
df

11. SQL
118
156
bg
443

12. Removes a directory
/media
dig-x
curl
rmdir

13. WHOIS
killall
/mnt
/boot
43

14. Search for all Unix commands that match keyword - e.g apropos file.
ifconfig
464
cat {filename}
apropos

15. SSH
22
curl
groupadd
118

16. Kills all processes by name
netstat -i
bg
killall
cat

17. Ftp Data
mail
20
top
usermod

18. View a text file - View file but it scrolls.
/dev
cat {filename}
/tmp
netstat -i

19. Displays all file space usage
du -a
20
uptime
ping

20. Creates a file / updates it
rm
53
touch
ifup

21. BGP
179
ifconfig
uname -a
156

22. Displays the 10 top lines of a file
cp
less {filename}
/root
head

23. Displays system uptime
/tmp
uptime
/mnt
page {filename}

24. Displays all current running processes (similar to task manager)
more {filename}
top
sudo
netstat -r

25. Displays current date and time
date
du -a
pwd
rmdir

26. Adds existing user to a group
curl
usermod
/mnt
fg

27. Essential system binaries : init - ip - mount
/sbin
156
464
pico {filename}

28. SNMP
/etc
ifdown
161
killall

29. Displays user information
dig-x
finger
history
/tmp

30. POP3
nslookup
161
110
usermod

31. Lists all files within a directory (including hidden)
ls -a
tail
/var/log
mkdir

32. Find regular expression in file.

33. Copies a file
du
/tmp
mv
cp

34. IMAP
rm
20
143
cat {filename}

35. Downloads a file from the internet
nslookup
wget
ifdown
stat

36. Shows who is currently logged in and where
w
du
history
20

37. Deletes a file
rm
115
chgrp
touch

38. Displays a table of all network interfaces / errors
/media
netstat -i
25
usermod

39. Reverse dns lookup
pwd
fg
/boot
dig-x

40. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
host
21
cat > {filename}
groupadd

41. View a text file - View file one screen at a time
page {filename}
pwd
80
cat {filename} | more

42. Mount points for removable media such as CD-ROMs
cal
du -a
/media
usermod

43. SFTP
grep '{pattern}' {file}
uname -a
ifconfig
115

44. Changes ownership of a file or directory
wget
chown
history
nslookup

45. HTTP
53
nslookup
80
cat {filename} | more

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

47. Host-specific system-wide configuration files
ifconfig -a
ping
chgrp
/etc

48. Brings the most recent job to the foreground
curl
fg
/var
pico {filename}

49. Moves a file with the option of renaming it
21
464
date
mv

50. Query internet name servers interactively
nslookup
53
/var
cp