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. Host-specific system-wide configuration files
file
du
fg
/etc

2. Creates a group for users
groupadd
21
file
sudo

3. Search for all Unix commands that match keyword - e.g apropos file.
grep
wget
apropos
mail

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

5. DNS
179
date
53
ifconfig -a

6. Displays the status of a service or all services
chgrp
service
finger
25

7. Brings an interface up
/media
dig
ifup
pwd

8. Users' home directories - containing saved files - personal settings - etc
cat > {filename}
pico {filename}
/home
df

9. Ftp Data
groupadd
/usr
20
43

10. SNMP
cat {filename}
tail
du -a
161

11. Checks web connectivity (displays page contents)
netstat -r
ls
curl
/var

12. View a text file - Very handy with ncftp.
page {filename}
25
ifconfig -a
finger

13. Prints network connections - routing tables - interface stats - masq connections and multicast relationships
fg
22
netstat
uname -a

14. Lists all stopped/paused background. Resumes a stopped job
ifup
/opt
bg
fg

15. Prints contains of text file
nslookup
cat {filename}
grep '{pattern}' {file}
cat

16. Log files
/var/log
date
pwd
du -a

17. Ftp Control
21
143
sudo
/sbin

18. Temporarily mounted filesystems
cat
/mnt
touch
443

19. View a text file - View file but it scrolls.
cat {filename}
/home
ps
/dev

20. HTTPS
/media
cat > {filename}
page {filename}
443

21. ____ is found at: cd /var/mail then vi into each mail (administrator - www-data - nagios etc.)
chgrp
grep '{pattern}' {file}
mail
grep

22. Kerberos password
464
115
ls -a
w

23. Displays system uptime
/bin
uptime
less {filename}
156

24. Check IP Addresses of active interfaces
/home
464
ls
ifconfig

25. Telnet
ifconfig -a
usermod
rm
23

26. Query internet name servers interactively
464
115
chgrp
nslookup

27. Displays the connection media state and capabilities
ps
ethtool
cat {filename}
stat

28. Displays kernel routing tables
118
netstat -r
/opt
grep '{pattern}' {file}

29. Contains Boot loader files - e.g. - kernels - initrd; often a separate partition
464
/lib
/boot
23

30. Report file system disk space usage
df
bg
/bin
usermod

31. Shows command history
netstat -r
history
curl
ping

32. Displays a table of all network interfaces / errors
history
netstat -i
du -a
/root

33. View a text file - View file one screen at a time
/lib
more {filename}
cat {filename} | more
mv

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

35. Displays current date and time
usermod
/sbin
date
pwd

36. Brings and interface down
ifdown
cal
110
netstat

37. 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.
grep '{pattern}' {file}
/var
rmdir
/mnt

38. Displays all current running processes (similar to task manager)
161
top
ifup
kill

39. Lists all files within a directory (including hidden)
ls -a
nslookup
page {filename}
service

40. SFTP
115
cat {filename}
groupadd
156

41. Changes ownership of a file or directory
ethtool
dig-x
chown
/var/log

42. Prints file type
25
chown
file
w

43. Creates a directory
cat {filename} | more
mkdir
grep
wget

44. SMTP
80
25
464
touch

45. Parses for string
head
curl
history
grep

46. IMAP
143
ping
ifconfig
ps

47. WHOIS
43
cd
/boot
118

48. Prints current working directory
pwd
apropos
nslookup
w

49. Changes group ownership of file or directory
chgrp
touch
/sbin
25

50. Kills all processes by name
killall
du
more {filename}
w