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






2. The firewall service is...






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

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4. Are additional packages besides httpd required for a secure website - If so - what are they?






5. How would you disable SELinux protection for NFS - allowing shares to be read/write?






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






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






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






9. What command can you use to manage system services?






10. What is the name of the package used to install an FTP?






11. The at command is used to ____________. The cron service handles reoccurring system jobs.






12. The old SysInit scripts have been replaced in Red Hat Enterprise Linux 6 for what new boot utility?






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

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14. How would you go about creating a static route?






15. Which version of SSH should you use?






16. What critical step must you take after updating the kernel to a newer version?






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

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






19. What is the difference between an A record and a PTR record?






20. Editing the /etc/xinetd.d/tftp file and enabling the service are the same as running the chkconfig tftp on command. Both of these actions...






21. What are the two types of back-end authentication mechanisms discussed in this chapter?






22. Runlevel 0 ___________. Runlevel 6 reboots the system.






23. How can you change the security context of a directory to work with Apache?






24. To grow a file system






25. What are the three items that make up LVM?






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






27. To export directories as resources - what file needs to be edited?

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28. What is the virsh command used for?






29. What is the xinetd service used for?






30. FTP is one of three protocols ______________. The other two protocols are NFS and HTTP.






31. What command is used to change the mail server from Sendmail to Postfix (useful only if you have both installed)?






32. Can you put your /boot partition on a RAID 5 array?






33. If a package is built on an RHEL6 system and deployed to a custom RHEL5 repository - are RHEL5 systems able to use it?






34. What is SSH used for?






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






36. What command can you use to create a new SSL certificate?






37. What option is used to allow anonymous uploads to the FTP server?






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






39. What are the three modes in which the rpm command can operate?






40. What two commands are special for dealing with user login events?






41. How can virtual hosts be used?






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






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






44. SSH does...






45. What command can you use to test the config files before starting the DNS service?






46. What command can be used to view the queue for at service jobs?






47. What is the rndc utility used for?






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






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






50. Which file shows you all the client IP addresses?