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. Lists all stopped/paused background. Resumes a stopped job
/opt
service
wget
bg

2. User root's home directory
apropos
/root
80
service

3. 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.
kill
156
/var
killall

4. Displays current date and time
ps
history
date
53

5. Temporarily mounted filesystems
/mnt
usermod
ifconfig -a
115

6. Kills a process by pid
chown
nslookup
kill
/opt

7. Estimate file space usage
killall
du
20
143

8. Prints file information
/bin
stat
/boot
ifup

9. Log files
/var/log
netstat -r
ps
/var

10. Query internet name servers interactively
20
nslookup
passwd
43

11. Displays user information
finger
179
cat {filename} | more
/etc

12. Temporary files cleaned on reboot
22
/tmp
uptime
df

13. Ftp Control
netstat -i
cat
21
53

14. Shows command history
grep '{pattern}' {file}
history
21
page {filename}

15. HTTPS
443
ps
curl
161

16. Changes directories
touch
/bin
cd
uname -a

17. SQL
du -a
443
head
118

18. Kerberos password
/root
/etc
service
464

19. Search for all Unix commands that match keyword - e.g apropos file.
du
kill
ifconfig -a
apropos

20. Configuration for optional installed software
/home
stat
/opt
cp

21. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
143
/var/log
man

22. Brings the most recent job to the foreground
dig
file
fg
service

23. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
host
less {filename}
man
netstat

24. Checks web connectivity (displays page contents)
/var
/var/log
curl
top

25. Creates a group for users
/lib
25
chgrp
groupadd

26. Contains essential devices
pwd
bg
/dev
179

27. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
ls
rm
cat > {filename}
/media

28. Removes a directory
touch
mkdir
rmdir
'/'

29. Changes password for a user
passwd
bg
161
/dev

30. Kills all processes by name
uname -a
killall
143
du

31. Displays the 10 top lines of a file
/lib
head
du
ls -a

32. Displays calendar
service
mv
rm
cal

33. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
fg
ps
/bin
netstat -i

34. Reports a snapshot of the current processes
/etc
ps
20
page {filename}

35. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
pwd
/home
143
mail

36. Users' home directories - containing saved files - personal settings - etc
23
bg
/home
touch

37. Displays all current running processes (similar to task manager)
ifconfig
more {filename}
top
443

38. Telnet
23
/boot
du
/root

39. SSH
uname -a
22
mail
chgrp

40. View a text file - View file one screen at a time
'/'
cp
more {filename}
43

41. Displays all file space usage
ps
du -a
uptime
host

42. Displays the connection media state and capabilities
history
fg
ethtool
43

43. Test network connectivity
mv
ping
/etc
cp

44. Lists all files within a directory (including hidden)
apropos
ls -a
/var/log
uname -a

45. Downloads a file from the internet
nslookup
21
wget
/lib

46. Brings an interface up
/opt
ifup
apropos
/sbin

47. SNMP
/bin
mkdir
161
netstat -r

48. HTTP
passwd
groupadd
chgrp
80

49. Deletes a file
/boot
cat {filename}
rm
161

50. IMAP
usermod
143
sudo
file