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. Libraries essential for the binaries in /bin/ and /sbin/
more {filename}
/lib
/tmp
22

2. Kills a process by pid
/var
kill
chgrp
head

3. Check IP Addresses of active interfaces
ethtool
156
ifconfig
rm

4. Changes password for a user
ifup
passwd
/root
/bin

5. Deletes a file
/opt
rm
fg
dig-x

6. Displays system uptime
chgrp
uptime
man
cat {filename} | more

7. Displays current date and time
/sbin
cat {filename} | more
20
date

8. POP3
110
/proc
/etc
chown

9. Displays Kernel information
uname -a
mail
rmdir
ping

10. Displays kernel routing tables
netstat -r
/mnt
ping
cd

11. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
touch
/root
/proc
118

12. Reports a snapshot of the current processes
pico {filename}
ifconfig
killall
ps

13. HTTP
cal
sudo
80
ps

14. Moves a file with the option of renaming it
/proc
groupadd
/opt
mv

15. View a text file - Like more - with extra features
464
/boot
less {filename}
143

16. Secondary hierarchy for read-only user data
less {filename}
/usr
head
ls

17. Changes ownership of a file or directory
history
chown
cat > {filename}
bg

18. Host-specific system-wide configuration files
pwd
cat {filename} | more
/etc
dig

19. Changes directories
head
/opt
21
cd

20. Checks web connectivity (displays page contents)
passwd
curl
/proc
/lib

21. 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.
touch
/usr
'/'
/var

22. Brings an interface up
ifup
464
/mnt
dig-x

23. Prints file type
mv
chown
fg
file

24. Displays the status of a service or all services
179
cat > {filename}
service
cp

25. Does a DNS lookup or reverse dns lookup
host
wget
cp
cat {filename}

26. User root's home directory
23
grep '{pattern}' {file}
/root
grep

27. Ftp Control
rm
grep '{pattern}' {file}
21
df

28. Shows who is currently logged in and where
apropos
w
pwd
groupadd

29. Displays calendar
cal
ifconfig -a
464
110

30. Kills all processes by name
/lib
file
killall
ifup

31. Creates a group for users
stat
groupadd
/etc
/bin

32. Test network connectivity
22
rmdir
ping
/opt

33. Copies a file
cp
110
/dev
rmdir

34. Elevate rights to that of root
/boot
sudo
grep '{pattern}' {file}
115

35. Parses for string
file
115
mkdir
grep

36. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
/lib
df
mkdir

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

38. Estimate file space usage
cal
touch
mv
du

39. Configuration for optional installed software
/proc
/opt
bg
w

40. HTTPS
du
443
service
25

41. Prints current working directory
pwd
143
ps
cat

42. Brings and interface down
ifdown
464
service
/boot

43. Prints contains of text file
20
/mnt
cat
touch

44. Temporarily mounted filesystems
ifdown
date
53
/mnt

45. Users' home directories - containing saved files - personal settings - etc
ps
uname -a
/home
/proc

46. Log files
/var/log
less {filename}
/etc
stat

47. Displays manual or help document for a command/application
fg
/lib
man
143

48. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
chown
21
/bin
/proc

49. Temporary files cleaned on reboot
179
ifconfig
curl
/tmp

50. SNMP
161
23
rmdir
apropos