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. List files within a directory
ls -a
ls
ifconfig
118

2. BGP
/dev
179
22
/etc

3. Configuration for optional installed software
/proc
usermod
/opt
killall

4. Reports a snapshot of the current processes
179
kill
ping
ps

5. Parses for string
118
grep
cat {filename} | more
wget

6. Adds existing user to a group
ls -a
/etc
bg
usermod

7. Displays all file space usage
/root
/opt
du -a
mv

8. Find regular expression in file.

9. Creates a file / updates it
ifdown
touch
killall
/var/log

10. POP3
ethtool
cat {filename} | more
80
110

11. Shows command history
ifdown
history
ls
finger

12. Displays all current running processes (similar to task manager)
ifup
service
top
cat {filename} | more

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

14. Lists all files within a directory (including hidden)
20
head
/var/log
ls -a

15. View a text file - Use text editor and don't save.
stat
head
uptime
pico {filename}

16. View a text file - Very handy with ncftp.
/var/log
cat
/opt
page {filename}

17. Displays calendar
464
cp
usermod
cal

18. Displays the connection media state and capabilities
ethtool
wget
cal
du -a

19. Displays current date and time
date
cp
/var/log
history

20. Report file system disk space usage
netstat
rm
dig-x
df

21. Users' home directories - containing saved files - personal settings - etc
bg
53
uname -a
/home

22. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
pwd
cat > {filename}
netstat -r
/usr

23. SNMP
/dev
ls
161
cal

24. Changes password for a user
/media
118
page {filename}
passwd

25. 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.
/root
21
nslookup
/var

26. Displays the 10 top lines of a file
du -a
host
history
head

27. Display all interfaces
53
/etc
ifconfig -a
usermod

28. Copies a file
uname -a
kill
cp
chgrp

29. SMTP
kill
25
/usr
cd

30. Changes ownership of a file or directory
mv
touch
more {filename}
chown

31. Kills all processes by name
21
nslookup
killall
80

32. Kerberos password
uname -a
cp
464
/mnt

33. Displays system uptime
22
uptime
du -a
/proc

34. Brings an interface up
finger
/var
ifup
ls

35. Changes directories
kill
cd
pico {filename}
bg

36. Deletes a file
118
ifdown
25
rm

37. Displays a table of all network interfaces / errors
ls
143
/lib
netstat -i

38. Brings the most recent job to the foreground
fg
df
pico {filename}
/tmp

39. Temporarily mounted filesystems
host
22
bg
/mnt

40. Contains essential devices
/dev
80
du
/opt

41. Prints file information
/etc
/mnt
stat
/opt

42. User root's home directory
page {filename}
stat
/root
/var

43. Displays Kernel information
43
uname -a
mv
'/'

44. Shows who is currently logged in and where
w
nslookup
/lib
/mnt

45. Ftp Control
/home
118
21
rm

46. WHOIS
wget
bg
chgrp
43

47. DNS
/root
/mnt
/lib
53

48. Reverse dns lookup
du -a
/etc
dig-x
head

49. View a text file - View file but it scrolls.
cat
cat {filename}
21
110

50. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/var
dig
/boot
cat {filename}