Test your basic knowledge |

Linux Administration

Subject : it-skills

Instructions:

Answer 50 questions in 30 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. SQL
cat
cp
nslookup
156

2. Copies a file
/home
wget
cp
cd

3. SSH
usermod
ifup
22
less {filename}

4. HTTPS
netstat -r
443
ls -a
25

5. Displays all current running processes (similar to task manager)
/mnt
cat
du
top

6. Brings and interface down
ifdown
touch
netstat -i
man

7. Prints current working directory
cat {filename}
156
ping
pwd

8. dns lookup
dig-x
history
/boot
dig

9. Display all interfaces
netstat
ifconfig -a
143
161

10. Displays the 10 bottom lines of a file
chgrp
tail
/lib
pwd

11. Prints file type
file
/home
touch
kill

12. Kills all processes by name
service
179
23
killall

13. Changes directories
mkdir
cd
ping
/dev

14. Changes password for a user
passwd
ls -a
finger
/boot

15. Find regular expression in file.

16. Estimate file space usage
man
/var/log
du
netstat -r

17. Essential system binaries : init - ip - mount
21
443
/sbin
dig-x

18. Log files
tail
/var/log
/dev
grep

19. Parses for string
grep
/sbin
host
apropos

20. Deletes a file
ps
rm
cat > {filename}
page {filename}

21. Users' home directories - containing saved files - personal settings - etc
/home
/sbin
cat
161

22. Shows command history
mail
/dev
cal
history

23. Prints contains of text file
date
cat
/root
20

24. View a text file - Very handy with ncftp.
/bin
top
page {filename}
cat

25. SMTP
179
25
118
groupadd

26. Changes ownership of a file or directory
/etc
161
chown
page {filename}

27. WHOIS
43
stat
nslookup
cd

28. View a text file - Use text editor and don't save.
rm
/media
curl
pico {filename}

29. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
/boot
fg
chgrp
ls

30. Displays user information
/mnt
finger
host
netstat

31. Kerberos password
/lib
464
43
dig-x

32. Displays kernel routing tables
more {filename}
netstat -r
netstat
groupadd

33. Displays current date and time
usermod
80
date
wget

34. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
/media
mail
/opt
killall

35. View a text file - View file one screen at a time
cat {filename} | more
file
143
host

36. SNMP
cat {filename}
/boot
161
chown

37. Temporarily mounted filesystems
/mnt
ifdown
rmdir
/var

38. Secondary hierarchy for read-only user data
ifconfig
/var
wget
/usr

39. Lists all stopped/paused background. Resumes a stopped job
bg
pico {filename}
cd
cat {filename}

40. Brings an interface up
ifup
cd
ls
netstat -i

41. Creates a file / updates it
touch
chown
/lib
cp

42. 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.
netstat -r
pwd
43
/var

43. Search for all Unix commands that match keyword - e.g apropos file.
179
/var
/etc
apropos

44. View a text file - View file one screen at a time
more {filename}
bg
cd
uptime

45. Ftp Control
grep
chgrp
21
file

46. Libraries essential for the binaries in /bin/ and /sbin/
/opt
ifconfig
file
/lib

47. DNS
cat > {filename}
chown
mail
53

48. IMAP
143
netstat
chown
sudo

49. Downloads a file from the internet
cd
161
wget
ps

50. Test network connectivity
ping
20
cat {filename} | more
/mnt