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 the connection media state and capabilities
ethtool
tail
more {filename}
/var

2. SSH
22
passwd
top
usermod

3. POP3
/mnt
20
finger
110

4. View a text file - Use text editor and don't save.
grep '{pattern}' {file}
pico {filename}
cat > {filename}
ifdown

5. Secondary hierarchy for read-only user data
mail
wget
head
/usr

6. Prints file information
more {filename}
stat
cal
53

7. Does a DNS lookup or reverse dns lookup
ifup
ifconfig
host
464

8. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
20
mkdir
netstat
143

9. Displays system uptime
cd
uptime
mail
80

10. View a text file - View file one screen at a time
pwd
more {filename}
ethtool
dig-x

11. Checks web connectivity (displays page contents)
ping
wget
curl
ethtool

12. Find regular expression in file.

13. Displays kernel routing tables
mail
nslookup
netstat -r
/var

14. Changes directories
110
cd
mv
netstat -i

15. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
killall
mail
less {filename}
/home

16. Ftp Data
143
apropos
179
20

17. Temporary files cleaned on reboot
/tmp
464
156
wget

18. Kills a process by pid
110
cp
kill
chgrp

19. Copies a file
/lib
161
cp
ps

20. Parses for string
/mnt
head
grep
uname -a

21. User root's home directory
/root
156
179
/home

22. Displays calendar
ifup
cal
cp
sudo

23. IMAP
/bin
143
118
nslookup

24. Reverse dns lookup
143
dig-x
date
grep

25. Shows command history
history
cat {filename}
cat
service

26. View a text file - View file but it scrolls.
/root
cat {filename}
cat
curl

27. Changes group ownership of file or directory
chgrp
more {filename}
finger
mail

28. Users' home directories - containing saved files - personal settings - etc
grep '{pattern}' {file}
/home
dig
dig-x

29. Contains essential devices
grep '{pattern}' {file}
du -a
nslookup
/dev

30. Displays all current running processes (similar to task manager)
chgrp
143
top
ls

31. Temporarily mounted filesystems
143
/mnt
179
rmdir

32. Downloads a file from the internet
cat {filename} | more
/sbin
wget
'/'

33. Ftp Control
dig-x
21
464
/tmp

34. View a text file - Like more - with extra features
less {filename}
df
bg
cp

35. Mount points for removable media such as CD-ROMs
20
passwd
443
/media

36. Lists all files within a directory (including hidden)
/home
/root
cal
ls -a

37. SFTP
mail
chgrp
115
143

38. Brings and interface down
uptime
chgrp
ifdown
tail

39. Report file system disk space usage
cat {filename}
df
ifdown
dig

40. Telnet
rmdir
cp
23
mail

41. Changes password for a user
passwd
page {filename}
wget
bg

42. Log files
service
netstat
tail
/var/log

43. Shows who is currently logged in and where
w
cat > {filename}
finger
ifup

44. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
443
53
dig-x
/proc

45. Libraries essential for the binaries in /bin/ and /sbin/
/lib
/home
head
ping

46. Displays current date and time
date
23
ifconfig
cat > {filename}

47. Prints file type
kill
/boot
file
uname -a

48. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
uptime
passwd
file
/boot

49. View a text file - Very handy with ncftp.
pwd
page {filename}
118
/etc

50. Elevate rights to that of root
sudo
stat
cat > {filename}
netstat