Test your basic knowledge |

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. Should you allow remote root access - Why or why not?

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2. What are the two config files for Postfix called?






3. What is the /etc/hosts file used for?

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4. A PXE server eases the automation process but isn't required for...






5. Before you work with quotas - what do you need to do to the file system?






6. What is the virsh command used for?






7. What command is used to create an RPM package?






8. What command is used to show all services being controlled by the xinetd daemon?






9. What is a virtual host?






10. What does the testparm command do?






11. What is the rndc utility used for?






12. What command-line program can you use to check your mail?






13. What command do you use to report information on quota usage?






14. What is the name of the section used to run scripts after a kickstart installation?






15. Which version of SSH should you use?






16. What client-side command can you use to test your FTP server connection?






17. What is a gateway used for on a network?






18. How can virtual hosts be used?






19. What option at the GRUB boot menu can you use to append something to a kernel?






20. If you want a specific action to take place when user01 logs in to the system - which file would you edit?






21. What option would you use to query an installed package using the rpm command?






22. What command displays your current interfaces and IP address?






23. What is the top command used for?






24. What command (and options) can be used to create a user named George with the description "Jr Admin"?






25. You must dictate the ____________ you want allocated to your virtual machine when you create it.






26. The exportfs command is used to...






27. What is the xinetd service used for?






28. What benefit does a web proxy provide to your network?






29. What is SSH used for?






30. What command can you use to check the config file of the DHCP server?






31. For Red Hat Enterprise Linux 6 - SELinux comes set up in enforcing mode. When installing Red Hat Enterprise Linux 5 - you have the option to...

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32. What port must be opened on the firewall for DNS?






33. What two commands are used for package management?






34. What are the side effects of shrinking a volume group or logical volume?






35. What protocols are used with Dovecot?






36. What command disables the SSH service from running when the system boots?






37. What port does the DHCP server listen on by default?






38. What is the format of the /etc/shadow file?






39. What command and options can you use to update the time?






40. GRUB has three stages. Can you name them?






41. Does a DHCP server allow reserved IP addresses - If so - how?






42. What command can you use to query information from the kernel about RAID arrays?






43. What is the name of the package that allows you to install VNC?






44. In Red Hat Enterprise Linux 6 - the default for SELinux is _______________ (which can be changed after the installation completes). For Red Hat Enterprise Linux 5 - you were able to choose what mode you wanted SELinux to start in.






45. How can you list all services on the system to tell whether they will boot during startup?






46. What is the difference between an ext2 and ext3 file system?

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47. What does the rdnc-confgen command do?






48. What options with the yum command would you use to remove a package?






49. What does the following firewall rule accomplish: iptables -I INPUT 5 -p tcp -m tcp --dport 80 -j ACCEPT?






50. Can you name the two commands that can be used to view the free space on the system?