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. Brings an interface up
uptime
top
/tmp
ifup

2. Moves a file with the option of renaming it
ls -a
80
mv
/lib

3. Brings and interface down
groupadd
ifdown
fg
21

4. Downloads a file from the internet
ifup
wget
touch
ifconfig -a

5. Test network connectivity
ping
df
25
du -a

6. Creates a group for users
top
groupadd
/sbin
ifconfig -a

7. Secondary hierarchy for read-only user data
cat > {filename}
53
cat {filename}
/usr

8. Libraries essential for the binaries in /bin/ and /sbin/
43
du -a
/lib
uname -a

9. Copies a file
/lib
cp
/opt
21

10. DNS
kill
53
156
tail

11. Displays the 10 top lines of a file
curl
head
/home
53

12. BGP
usermod
/bin
179
dig-x

13. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
22
mv
mail
ifconfig -a

14. Essential system binaries : init - ip - mount
20
cat > {filename}
/sbin
mkdir

15. HTTPS
443
dig
killall
/usr

16. Elevate rights to that of root
ifup
143
sudo
df

17. Telnet
uptime
23
chown
pico {filename}

18. Lists all files within a directory (including hidden)
ls -a
ifconfig -a
156
22

19. View a text file - Like more - with extra features
161
top
less {filename}
history

20. Displays kernel routing tables
/lib
netstat -r
wget
df

21. Deletes a file
161
rm
top
464

22. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
mv
/tmp
netstat
finger

23. View a text file - Use text editor and don't save.
/proc
uptime
pico {filename}
161

24. Displays current date and time
date
ifup
/mnt
apropos

25. Contains essential devices
/dev
/opt
ifconfig -a
du -a

26. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
cat > {filename}
161
/var
ifup

27. Prints file type
cd
ping
file
25

28. Creates a file / updates it
netstat -i
118
touch
443

29. Ftp Data
wget
uname -a
netstat
20

30. Parses for string
ifup
usermod
file
grep

31. SSH
/lib
/usr
22
cp

32. View a text file - View file one screen at a time
/etc
cat {filename} | more
man
pico {filename}

33. HTTP
file
80
/var/log
top

34. Estimate file space usage
cat > {filename}
/mnt
464
du

35. Prints file information
stat
cp
/lib
/usr

36. List files within a directory
/etc
/usr
cat {filename}
ls

37. Check IP Addresses of active interfaces
cat {filename} | more
ifconfig
ls
history

38. Displays all current running processes (similar to task manager)
stat
top
file
nslookup

39. View a text file - View file but it scrolls.
cat {filename}
/mnt
cat > {filename}
tail

40. Log files
/var/log
tail
netstat -r
killall

41. Report file system disk space usage
fg
df
mv
/bin

42. Displays the status of a service or all services
/var/log
service
/home
/opt

43. Temporarily mounted filesystems
head
mv
/etc
/mnt

44. SQL
156
touch
top
115

45. dns lookup
pwd
service
w
dig

46. Changes ownership of a file or directory
netstat -i
chown
mv
/dev

47. Checks web connectivity (displays page contents)
touch
ifdown
curl
/media

48. Display all interfaces
ifconfig -a
rmdir
/var
groupadd

49. SQL
netstat -r
143
118
uptime

50. SNMP
110
nslookup
apropos
161