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. Displays a table of all network interfaces / errors
touch
chgrp
netstat -i
22

2. Displays the 10 top lines of a file
ls
head
/usr
23

3. Elevate rights to that of root
sudo
grep
cat {filename} | more
nslookup

4. Displays calendar
cal
43
/root
ifdown

5. Prints file type
service
143
file
bg

6. Displays Kernel information
cat {filename}
uname -a
20
ethtool

7. Lists all files within a directory (including hidden)
43
sudo
ls -a
179

8. User root's home directory
/root
'/'
179
du -a

9. Displays all file space usage
apropos
/usr
du -a
w

10. Contains essential devices
/home
/dev
'/'
110

11. View a text file - Very handy with ncftp.
uptime
page {filename}
/usr
curl

12. Brings the most recent job to the foreground
21
mkdir
/mnt
fg

13. Changes ownership of a file or directory
groupadd
/dev
chown
/usr

14. Displays the status of a service or all services
service
23
mv
dig-x

15. Kills all processes by name
ifconfig
history
ethtool
killall

16. Reports a snapshot of the current processes
usermod
179
ps
/root

17. Displays user information
service
finger
118
cd

18. HTTP
apropos
80
179
sudo

19. SSH
53
22
head
chown

20. Host-specific system-wide configuration files
rm
23
/etc
53

21. Kills a process by pid
netstat -i
kill
pico {filename}
passwd

22. Users' home directories - containing saved files - personal settings - etc
cat {filename} | more
df
/home
115

23. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
service
118
/usr
netstat

24. SNMP
161
23
head
killall

25. Copies a file
/opt
dig
cp
118

26. Shows who is currently logged in and where
161
w
date
/sbin

27. Deletes a file
rm
ifdown
nslookup
21

28. List files within a directory
netstat -i
ls
kill
usermod

29. Displays kernel routing tables
host
/sbin
uname -a
netstat -r

30. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
156
ifconfig
/proc
host

31. SQL
ifconfig
fg
156
80

32. Displays the connection media state and capabilities
killall
history
ethtool
'/'

33. Lists all stopped/paused background. Resumes a stopped job
bg
25
kill
mv

34. dns lookup
top
service
uname -a
dig

35. Ftp Data
156
80
20
cat {filename}

36. HTTPS
cat > {filename}
53
443
top

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

38. Report file system disk space usage
netstat
ethtool
df
pwd

39. Estimate file space usage
22
nslookup
du
143

40. Does a DNS lookup or reverse dns lookup
netstat -r
cp
host
tail

41. Mount points for removable media such as CD-ROMs
dig
host
service
/media

42. Displays manual or help document for a command/application
464
apropos
/usr
man

43. Brings an interface up
ifup
cal
finger
stat

44. BGP
netstat -i
/var
179
cat > {filename}

45. Essential system binaries : init - ip - mount
grep '{pattern}' {file}
161
/sbin
date

46. DNS
53
115
fg
cat > {filename}

47. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
cat > {filename}
/boot
date
464

48. Ftp Control
sudo
21
ifdown
tail

49. Kerberos password
ifconfig
/var
/bin
464

50. Changes group ownership of file or directory
fg
chgrp
tail
ifconfig -a