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. Contains essential devices
ls
/dev
110
115

2. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
netstat
/bin
/mnt
dig

3. IMAP
stat
w
/root
143

4. dns lookup
dig
21
ifconfig
cat > {filename}

5. Test network connectivity
/dev
ethtool
/media
ping

6. BGP
top
179
netstat
curl

7. HTTPS
443
ls -a
115
80

8. Temporary files cleaned on reboot
mv
/tmp
179
cp

9. Displays the connection media state and capabilities
du
ethtool
netstat -i
/lib

10. SNMP
118
161
/boot
killall

11. Downloads a file from the internet
cat
20
wget
page {filename}

12. User root's home directory
/root
143
cat > {filename}
uptime

13. Ftp Control
ifconfig
head
21
history

14. Kerberos password
netstat -i
mkdir
143
464

15. Changes ownership of a file or directory
killall
netstat -i
chown
cp

16. Brings and interface down
/tmp
mail
ifdown
cal

17. Display all interfaces
ifconfig -a
/proc
rmdir
/var/log

18. Displays the status of a service or all services
service
ethtool
/proc
53

19. Reports a snapshot of the current processes
/var/log
/bin
ps
118

20. SFTP
115
ethtool
finger
du

21. Brings the most recent job to the foreground
fg
du -a
464
/bin

22. Configuration for optional installed software
/opt
top
43
/etc

23. Essential command binaries that need to be available in single user mode; for all users - e.g. - cat - ls - cp.
more {filename}
bg
groupadd
/bin

24. Temporarily mounted filesystems
service
443
/mnt
file

25. Creates a group for users
/root
'/'
115
groupadd

26. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
cat {filename} | more
80
mail
netstat

27. Prints file type
usermod
23
file
80

28. Kills a process by pid
mv
/lib
'/'
kill

29. Search for all Unix commands that match keyword - e.g apropos file.
/var
/usr
pico {filename}
apropos

30. Ftp Data
464
20
apropos
groupadd

31. 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.
/var
/opt
fg
netstat

32. HTTP
80
25
netstat -r
/tmp

33. Displays system uptime
curl
netstat -r
/etc
uptime

34. Displays kernel routing tables
dig-x
/bin
netstat -r
ping

35. Secondary hierarchy for read-only user data
ifconfig
/usr
dig
118

36. Creates a file / updates it
touch
pwd
passwd
53

37. Changes directories
wget
cd
cat
cat > {filename}

38. Moves a file with the option of renaming it
touch
mv
grep '{pattern}' {file}
dig

39. Parses for string
curl
apropos
grep
110

40. Create a text file: Enter your text (multiple lines with enter are ok) and press control-d to save.
80
cat > {filename}
pwd
kill

41. View a text file - View file one screen at a time
ifdown
w
dig-x
more {filename}

42. Shows command history
history
/usr
/sbin
netstat

43. View a text file - View file one screen at a time
cat {filename} | more
'/'
chown
ls

44. View a text file - View file but it scrolls.
cat {filename}
ifconfig
mail
118

45. Displays all current running processes (similar to task manager)
killall
top
w
history

46. Mount points for removable media such as CD-ROMs
23
/media
mkdir
/etc

47. Find regular expression in file.

48. Query internet name servers interactively
man
nslookup
grep
143

49. Lists all files within a directory (including hidden)
less {filename}
110
ping
ls -a

50. Estimate file space usage
20
chown
history
du