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. BGP
179
/bin
netstat
23

2. Temporarily mounted filesystems
110
du
/tmp
/mnt

3. Kerberos password
22
apropos
464
ifconfig

4. Changes group ownership of file or directory
ls
chgrp
curl
chown

5. Log files
more {filename}
/var/log
df
man

6. Prints file information
ls -a
22
stat
sudo

7. Brings an interface up
history
head
ifup
ifdown

8. Reverse dns lookup
dig-x
/home
top
more {filename}

9. Adds existing user to a group
df
usermod
ifdown
pwd

10. List files within a directory
page {filename}
groupadd
dig-x
ls

11. IMAP
143
tail
'/'
rm

12. SQL
less {filename}
df
rmdir
156

13. SMTP
pwd
25
ls
/bin

14. Test network connectivity
ping
passwd
rm
/media

15. 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.
ifconfig
161
/var
/etc

16. Checks web connectivity (displays page contents)
143
netstat -r
head
curl

17. POP3
w
groupadd
179
110

18. Displays all file space usage
du -a
21
/etc
/mnt

19. Host-specific system-wide configuration files
/etc
80
du -a
cal

20. Displays a table of all network interfaces / errors
179
netstat -i
118
nslookup

21. View a text file - View file but it scrolls.
ifconfig
cat {filename}
ifconfig -a
dig

22. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
/proc
143
cd
ethtool

23. HTTPS
tail
443
netstat -i
top

24. Displays the connection media state and capabilities
groupadd
20
date
ethtool

25. Essential system binaries : init - ip - mount
cat > {filename}
more {filename}
/sbin
cp

26. Creates a directory
apropos
netstat
mkdir
pico {filename}

27. Displays current date and time
w
date
du -a
du

28. Temporary files cleaned on reboot
43
179
/lib
/tmp

29. Kills a process by pid
kill
43
grep '{pattern}' {file}
ps

30. Reports a snapshot of the current processes
ps
stat
ping
cat {filename} | more

31. Parses for string
cal
156
21
grep

32. SNMP
mv
161
stat
netstat

33. Query internet name servers interactively
mkdir
nslookup
53
110

34. Changes directories
179
date
top
cd

35. Displays manual or help document for a command/application
man
80
grep '{pattern}' {file}
chgrp

36. Search for all Unix commands that match keyword - e.g apropos file.
156
apropos
sudo
/root

37. Users' home directories - containing saved files - personal settings - etc
/home
service
cat {filename}
443

38. Displays all current running processes (similar to task manager)
bg
chgrp
118
top

39. Removes a directory
/dev
/media
rmdir
killall

40. Display all interfaces
wget
sudo
cp
ifconfig -a

41. Displays kernel routing tables
more {filename}
115
grep
netstat -r

42. Configuration for optional installed software
ps
/opt
du -a
netstat -r

43. Creates a group for users
ethtool
/home
mv
groupadd

44. Brings and interface down
killall
ifdown
dig
finger

45. Telnet
156
/tmp
grep '{pattern}' {file}
23

46. Elevate rights to that of root
/dev
usermod
sudo
/lib

47. WHOIS
43
443
ls -a
/mnt

48. Estimate file space usage
/dev
du
fg
netstat -i

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

50. Shows who is currently logged in and where
/root
w
sudo
161