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. Search for all Unix commands that match keyword - e.g apropos file.
apropos
/root
cd
115

2. Changes ownership of a file or directory
chown
464
service
cal

3. Prints contains of text file
/opt
cat
curl
pwd

4. Ftp Data
less {filename}
20
161
rm

5. Displays the connection media state and capabilities
kill
ethtool
/lib
118

6. Kills a process by pid
kill
ping
netstat -i
/opt

7. Changes directories
rmdir
cd
ifconfig -a
bg

8. Displays user information
netstat
143
mail
finger

9. Elevate rights to that of root
sudo
443
156
rmdir

10. Moves a file with the option of renaming it
/usr
history
mv
nslookup

11. Users' home directories - containing saved files - personal settings - etc
/home
/bin
man
passwd

12. View a text file - View file one screen at a time
/var/log
more {filename}
pico {filename}
ls -a

13. Changes group ownership of file or directory
cat {filename}
161
chgrp
dig-x

14. SQL
156
179
stat
rmdir

15. Displays kernel routing tables
ls
21
netstat -r
/mnt

16. Configuration for optional installed software
mail
/opt
/home
25

17. Shows who is currently logged in and where
w
ifdown
uname -a
touch

18. SQL
uname -a
finger
118
161

19. 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.
/var
uname -a
/boot
history

20. Reverse dns lookup
kill
43
dig-x
/var

21. Temporary files cleaned on reboot
/opt
/tmp
/root
161

22. Displays the 10 top lines of a file
ifconfig -a
head
grep '{pattern}' {file}
ethtool

23. HTTPS
/opt
chown
443
usermod

24. Copies a file
ifup
uptime
/home
cp

25. Brings and interface down
161
cp
ifdown
netstat -i

26. Displays system uptime
uptime
file
apropos
rmdir

27. View a text file - View file one screen at a time
cat {filename} | more
grep
apropos
/sbin

28. SNMP
ifconfig -a
/home
161
grep '{pattern}' {file}

29. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
du
wget
/bin
df

30. Libraries essential for the binaries in /bin/ and /sbin/
/lib
cal
ps
23

31. Find regular expression in file.

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

33. Displays all file space usage
head
du -a
43
chown

34. Does a DNS lookup or reverse dns lookup
/tmp
host
22
21

35. Brings an interface up
ifup
/home
/opt
21

36. SMTP
cd
23
25
/proc

37. Check IP Addresses of active interfaces
curl
cat {filename}
bg
ifconfig

38. Reports a snapshot of the current processes
ps
23
chown
apropos

39. Ftp Control
rm
more {filename}
page {filename}
21

40. Telnet
21
23
host
netstat

41. Downloads a file from the internet
464
ifdown
netstat
wget

42. Deletes a file
80
20
rm
pwd

43. Essential system binaries : init - ip - mount
/sbin
443
du -a
/etc

44. Displays calendar
mail
bg
53
cal

45. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
sudo
file
22
mail

46. Prints file information
mv
ping
stat
grep

47. Checks web connectivity (displays page contents)
passwd
curl
netstat -i
/tmp

48. Displays all current running processes (similar to task manager)
top
ls
passwd
/mnt

49. View a text file - Very handy with ncftp.
page {filename}
ifconfig
head
sudo

50. Changes password for a user
fg
man
date
passwd