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. View a text file - View file one screen at a time
date
cat > {filename}
cat {filename} | more
curl

2. View a text file - Very handy with ncftp.
page {filename}
ping
cal
/etc

3. View a text file - View file but it scrolls.
fg
cat {filename}
118
43

4. Brings and interface down
ifdown
ethtool
head
143

5. Ftp Control
mv
file
143
21

6. Changes directories
dig-x
cd
grep '{pattern}' {file}
ifdown

7. User root's home directory
cat > {filename}
23
/root
/lib

8. View a text file - Use text editor and don't save.
/boot
pico {filename}
netstat
top

9. Elevate rights to that of root
head
top
w
sudo

10. Temporary files cleaned on reboot
/tmp
less {filename}
passwd
25

11. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
cat {filename} | more
man
ifconfig
cat > {filename}

12. Users' home directories - containing saved files - personal settings - etc
/dev
mail
/home
/var

13. SFTP
chgrp
top
uptime
115

14. Check IP Addresses of active interfaces
25
ifconfig
cat {filename}
file

15. SQL
118
netstat -i
/proc
cat {filename} | more

16. View a text file - View file one screen at a time
usermod
143
/mnt
more {filename}

17. Displays the status of a service or all services
53
curl
464
service

18. Libraries essential for the binaries in /bin/ and /sbin/
history
page {filename}
/lib
head

19. Display all interfaces
161
apropos
ifconfig -a
/root

20. SNMP
mkdir
/sbin
161
stat

21. Deletes a file
rm
/lib
ifdown
25

22. BGP
apropos
179
161
23

23. Query internet name servers interactively
nslookup
143
/media
25

24. Displays user information
w
53
/var/log
finger

25. SQL
more {filename}
curl
156
dig

26. Essential system binaries : init - ip - mount
/var/log
cp
43
/sbin

27. Creates a directory
mkdir
more {filename}
156
/tmp

28. Creates a file / updates it
touch
156
head
/media

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

30. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
ifconfig -a
/bin
fg
touch

31. Creates a group for users
head
service
/bin
groupadd

32. Shows command history
history
ifconfig -a
143
page {filename}

33. Host-specific system-wide configuration files
ifup
mkdir
/etc
passwd

34. IMAP
ethtool
/dev
/boot
143

35. Prints current working directory
80
ifconfig
118
pwd

36. HTTP
grep
80
history
443

37. Log files
/root
/var/log
passwd
dig-x

38. Displays a table of all network interfaces / errors
netstat -i
mkdir
23
ping

39. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
page {filename}
179
mv

40. Displays system uptime
/media
wget
finger
uptime

41. Adds existing user to a group
/lib
usermod
ls -a
sudo

42. Mount points for removable media such as CD-ROMs
179
/media
chgrp
groupadd

43. Displays Kernel information
chown
464
uname -a
usermod

44. Brings the most recent job to the foreground
fg
man
20
ethtool

45. Ftp Data
ls -a
20
pwd
nslookup

46. Removes a directory
service
rmdir
/var/log
date

47. HTTPS
/dev
21
443
curl

48. Downloads a file from the internet
/sbin
wget
/var
464

49. Search for all Unix commands that match keyword - e.g apropos file.
uname -a
apropos
cat {filename} | more
ifconfig -a

50. Does a DNS lookup or reverse dns lookup
host
netstat -r
ls
wget