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. Mount points for removable media such as CD-ROMs
/media
cat
passwd
mail

2. Report file system disk space usage
df
finger
/opt
ps

3. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
161
netstat
/etc
ifconfig

4. 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.
ifconfig
115
20
/var

5. Brings the most recent job to the foreground
ifconfig
wget
fg
/usr

6. Log files
43
cal
mail
/var/log

7. Displays manual or help document for a command/application
man
date
du -a
chown

8. View a text file - View file one screen at a time
uptime
service
ping
more {filename}

9. Configuration for optional installed software
pico {filename}
/opt
dig-x
20

10. Lists all files within a directory (including hidden)
110
cat > {filename}
/proc
ls -a

11. Displays calendar
20
cal
service
ifdown

12. SFTP
53
115
grep '{pattern}' {file}
chown

13. Changes ownership of a file or directory
pwd
chown
less {filename}
nslookup

14. Parses for string
/tmp
/opt
grep
ifconfig

15. View a text file - Like more - with extra features
grep
less {filename}
/mnt
usermod

16. Display all interfaces
ifconfig -a
du -a
ifdown
/mnt

17. Downloads a file from the internet
/var/log
/dev
wget
dig

18. SSH
host
sudo
22
21

19. Displays Kernel information
date
uname -a
chgrp
/lib

20. Elevate rights to that of root
sudo
143
ping
apropos

21. Copies a file
ifdown
du
cp
killall

22. Test network connectivity
cal
ping
/dev
ifdown

23. Prints file type
file
kill
/opt
/sbin

24. Libraries essential for the binaries in /bin/ and /sbin/
ifconfig
/lib
killall
ethtool

25. Prints contains of text file
cat
143
groupadd
mail

26. Displays all file space usage
du -a
curl
mkdir
/boot

27. Shows command history
/var/log
history
fg
/usr

28. Changes group ownership of file or directory
chgrp
/etc
du -a
23

29. Kerberos password
464
53
cal
du -a

30. Reports a snapshot of the current processes
ifup
ps
mkdir
cat

31. Deletes a file
/usr
less {filename}
rm
netstat

32. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
uptime
/usr
bg
mail

33. BGP
mkdir
pico {filename}
179
80

34. POP3
head
110
tail
pico {filename}

35. Find regular expression in file.

36. Creates a file / updates it
grep '{pattern}' {file}
179
touch
man

37. Prints file information
80
grep '{pattern}' {file}
stat
more {filename}

38. Search for all Unix commands that match keyword - e.g apropos file.
/proc
ping
apropos
ifup

39. Temporarily mounted filesystems
curl
/mnt
118
cat {filename} | more

40. Root directory of file system (not the user root's home dir)
'/'

41. Changes directories
file
cd
21
ethtool

42. Displays all current running processes (similar to task manager)
apropos
cp
/lib
top

43. View a text file - View file but it scrolls.
grep '{pattern}' {file}
143
cat {filename}
du -a

44. Reverse dns lookup
cd
dig-x
usermod
stat

45. Essential system binaries : init - ip - mount
/proc
rm
pwd
/sbin

46. View a text file - Use text editor and don't save.
161
/etc
sudo
pico {filename}

47. Lists all stopped/paused background. Resumes a stopped job
156
bg
20
80

48. User root's home directory
dig
uname -a
/dev
/root

49. Contains essential devices
pico {filename}
apropos
ls
/dev

50. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
443
/boot
/lib
/proc