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. Creates a file / updates it
top
/root
touch
history

2. BGP
less {filename}
161
history
179

3. Libraries essential for the binaries in /bin/ and /sbin/
/home
/lib
cd
more {filename}

4. Displays user information
finger
nslookup
ifdown
/var

5. Test network connectivity
netstat -i
w
/root
ping

6. View a text file - View file one screen at a time
killall
w
cat {filename} | more
bg

7. Displays a table of all network interfaces / errors
netstat -i
156
dig
more {filename}

8. dns lookup
less {filename}
/usr
dig
curl

9. Prints contains of text file
/var/log
cat
du -a
/bin

10. User root's home directory
/root
grep '{pattern}' {file}
more {filename}
/dev

11. Brings an interface up
more {filename}
killall
passwd
ifup

12. View a text file - Use text editor and don't save.
pico {filename}
161
stat
nslookup

13. Downloads a file from the internet
20
22
stat
wget

14. Displays calendar
cat
179
cal
du

15. Displays all current running processes (similar to task manager)
service
top
/tmp
/etc

16. Changes directories
cd
/sbin
80
host

17. Find regular expression in file.

18. Virtual filesystem documenting kernel and process status as text files - e.g. uptime or network. In Linux it corresponds to a Procfs mount
pwd
page {filename}
/proc
ifup

19. Brings the most recent job to the foreground
mv
80
netstat
fg

20. View a text file - Very handy with ncftp.
page {filename}
cat {filename}
464
fg

21. Lists all stopped/paused background. Resumes a stopped job
bg
service
/opt
dig

22. Elevate rights to that of root
passwd
sudo
ifconfig
history

23. View a text file - View file but it scrolls.
cat {filename}
rm
'/'
cd

24. SQL
uname -a
156
179
touch

25. Estimate file space usage
du
20
ps
cp

26. Changes group ownership of file or directory
ifconfig -a
usermod
rm
chgrp

27. Temporarily mounted filesystems
/home
du
/var/log
/mnt

28. Shows command history
80
history
/usr
netstat -r

29. Search for all Unix commands that match keyword - e.g apropos file.
156
mv
143
apropos

30. Prints file type
ifup
cd
file
21

31. Copies a file
/sbin
bg
host
cp

32. SSH
22
161
/usr
kill

33. Creates a directory
mkdir
chgrp
uptime
/boot

34. Displays the status of a service or all services
ls -a
/boot
service
80

35. Parses for string
host
date
uname -a
grep

36. Displays the 10 top lines of a file
/lib
grep
head
sudo

37. Log files
/home
rmdir
mail
/var/log

38. Kerberos password
464
43
/lib
rmdir

39. 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.
118
25
ls -a
/var

40. Report file system disk space usage
ethtool
df
rm
groupadd

41. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
ps
pico {filename}
netstat
110

42. Contains essential devices
21
/media
page {filename}
/dev

43. Query internet name servers interactively
ping
nslookup
161
21

44. Displays current date and time
apropos
date
53
/root

45. Mount points for removable media such as CD-ROMs
netstat -i
/media
killall
mv

46. Prints file information
cp
stat
118
43

47. Brings and interface down
ifdown
/sbin
/proc
110

48. View a text file - Like more - with extra features
22
dig
less {filename}
/bin

49. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
wget
/media
history
/boot

50. Creates a group for users
groupadd
/mnt
host
chown