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. There are four types of DNS servers. Name them.






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






3. The default SMTP service has been changed from _________ to Postfix in Red Hat Enterprise Linux 6.






4. What command can you use to create a password-protected page?






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

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6. What port does the rndc utility listen on by default?






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






8. To grow a file system






9. What command can you use to change the context of files?






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






11. How can you verify the status of the SSH service after the system has booted?






12. The portmap service was replaced by the ______________ in Red Hat Enterprise Linux 6.






13. What is a virtual host?






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






15. Most boot issues can be resolved by...






16. What command do you use to change the permissions on a file or directory - To change ownership?






17. What is VNC?






18. Which log file is used to keep track of policy violations?






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






20. What three commands can you use to help verify that the DNS server is functioning properly?






21. What is the difference between the update (-U) and install (-i) options when using rpm to update the kernel?






22. What is the rndc utility used for?






23. What does the partprobe command do?






24. The INPUT chain being used is the default under Red Hat Enterprise Linux 5. This rule...






25. What are SELinux Booleans?






26. By default - what is the path to a user's home directory?

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27. What is the default port that Squid runs on?






28. The package selection screen allows you to install any software you want during the installation process as long as...






29. What happens if you call the command from question 3 with the -c option after it has already been run?






30. SSH does...






31. What does the testparm command do?






32. How can you display all virtual guests after they're connected to a hypervisor?






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






34. What two ports should be opened on the firewall for the FTP server to function properly?






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






36. What is the point of using SELinux?






37. What is the top command used for?






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






39. What port does the SMTP service run on?






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






41. What does the rdnc-confgen command do?






42. How can virtual hosts be used?






43. What is NAT - How is it used?






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






45. 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.






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






47. What is the virsh command used for?






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






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






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







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