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. Query internet name servers interactively
uptime
mv
nslookup
netstat -i

2. Displays a table of all network interfaces / errors
rm
netstat -i
/opt
/home

3. Brings an interface up
161
grep
dig-x
ifup

4. Changes directories
rmdir
143
/usr
cd

5. Kerberos password
464
ifup
23
/home

6. HTTP
w
finger
80
156

7. Host-specific system-wide configuration files
rm
groupadd
43
/etc

8. Prints contains of text file
mv
/home
/etc
cat

9. Displays system uptime
grep
'/'
23
uptime

10. POP3
110
/sbin
df
/var

11. View a text file - Like more - with extra features
less {filename}
ifconfig -a
/root
ls -a

12. List files within a directory
ls
cd
w
/home

13. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
less {filename}
/proc
du
161

14. Elevate rights to that of root
22
53
cd
sudo

15. Display all interfaces
cp
page {filename}
ifconfig -a
rm

16. SMTP
groupadd
25
less {filename}
cd

17. Changes group ownership of file or directory
netstat
/usr
chgrp
cat {filename} | more

18. Displays the 10 top lines of a file
118
host
179
head

19. Displays all file space usage
uname -a
ifup
du -a
tail

20. Creates a directory
mkdir
groupadd
chown
cp

21. View a text file - View file one screen at a time
23
/proc
cat {filename} | more
date

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

23. Shows who is currently logged in and where
w
cp
115
cat > {filename}

24. Kills all processes by name
cat > {filename}
killall
cd
chgrp

25. Displays kernel routing tables
date
netstat -r
/opt
passwd

26. Reports a snapshot of the current processes
ps
dig-x
cat {filename} | more
host

27. Kills a process by pid
kill
pwd
ifup
passwd

28. Displays the status of a service or all services
uptime
20
service
kill

29. Estimate file space usage
du
443
cat
sudo

30. Report file system disk space usage
/sbin
date
/var
df

31. SFTP
21
chgrp
115
cd

32. Ftp Data
53
20
ps
file

33. BGP
179
chgrp
netstat -r
/var

34. View a text file - Very handy with ncftp.
kill
passwd
143
page {filename}

35. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
cat {filename}
file
443

36. Displays current date and time
23
22
date
161

37. Does a DNS lookup or reverse dns lookup
top
uname -a
mkdir
host

38. Parses for string
ifconfig -a
groupadd
/usr
grep

39. Displays manual or help document for a command/application
/mnt
rmdir
man
uptime

40. Lists all files within a directory (including hidden)
ls -a
/lib
156
file

41. Prints current working directory
/home
w
head
pwd

42. 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.
more {filename}
/opt
ethtool
/var

43. HTTPS
/media
443
mail
mkdir

44. Brings the most recent job to the foreground
464
fg
ethtool
ifconfig

45. Test network connectivity
/home
115
ping
uname -a

46. Log files
/var/log
mail
464
kill

47. Removes a directory
rmdir
usermod
service
sudo

48. DNS
53
less {filename}
tail
mv

49. Reverse dns lookup
/bin
dig-x
/sbin
w

50. Brings and interface down
ifdown
file
ifconfig -a
443