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. Moves a file with the option of renaming it
/var/log
mv
cat {filename} | more
cat > {filename}

2. Prints current working directory
20
head
pwd
cat

3. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
chgrp
top
/boot
mail

4. Telnet
mv
23
cat {filename}
mail

5. Creates a directory
156
23
mkdir
service

6. WHOIS
pwd
page {filename}
43
netstat -i

7. User root's home directory
/root
host
ifup
110

8. Essential system binaries : init - ip - mount
stat
/dev
top
/sbin

9. Displays the 10 bottom lines of a file
tail
page {filename}
ls
du

10. Displays the 10 top lines of a file
cat {filename}
stat
mkdir
head

11. Display all interfaces
ifconfig -a
man
/boot
rmdir

12. Shows command history
netstat
/sbin
killall
history

13. Temporary files cleaned on reboot
cat
cat {filename} | more
/tmp
wget

14. Does a DNS lookup or reverse dns lookup
/sbin
/usr
dig-x
host

15. Brings the most recent job to the foreground
grep
cat
more {filename}
fg

16. Creates a file / updates it
touch
pwd
143
killall

17. Brings and interface down
/tmp
netstat -r
/bin
ifdown

18. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
/sbin
443
21
netstat

19. Estimate file space usage
more {filename}
du
/home
netstat

20. SQL
156
fg
ethtool
sudo

21. SMTP
25
cat {filename}
43
killall

22. Mount points for removable media such as CD-ROMs
pico {filename}
/media
finger
110

23. Host-specific system-wide configuration files
df
/etc
netstat -r
uptime

24. Report file system disk space usage
/var/log
43
df
143

25. Displays user information
passwd
finger
cd
/var

26. Adds existing user to a group
161
fg
usermod
rm

27. Secondary hierarchy for read-only user data
grep
143
/usr
/root

28. List files within a directory
file
grep '{pattern}' {file}
ls
/bin

29. View a text file - View file one screen at a time
more {filename}
110
df
/boot

30. Users' home directories - containing saved files - personal settings - etc
bg
53
/home
stat

31. Ftp Control
179
dig
443
21

32. 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.
/root
grep
/var
less {filename}

33. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
stat
/media
du -a
/proc

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

35. Ftp Data
20
df
apropos
mkdir

36. Query internet name servers interactively
mail
usermod
/boot
nslookup

37. HTTP
80
/sbin
dig
chown

38. Kills a process by pid
df
rm
21
kill

39. Checks web connectivity (displays page contents)
curl
uname -a
du -a
/proc

40. Displays current date and time
/etc
cat {filename}
date
ifdown

41. Brings an interface up
pico {filename}
115
apropos
ifup

42. Removes a directory
cat > {filename}
/lib
rmdir
179

43. Kerberos password
/var/log
wget
stat
464

44. Deletes a file
53
/root
rm
ifconfig

45. Prints file information
top
nslookup
uptime
stat

46. Displays a table of all network interfaces / errors
netstat -i
161
/mnt
ifdown

47. Reports a snapshot of the current processes
ps
service
ifup
less {filename}

48. DNS
w
man
53
/bin

49. Displays system uptime
uptime
netstat
service
rmdir

50. View a text file - Use text editor and don't save.
bg
ps
ping
pico {filename}