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. What is the top command used for?






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






3. Do you need to write changes to the disk when using the parted command? What about fdisk?






4. What is NAT - How is it used?






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






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






7. What three components are needed to fully automate a kickstart installation?






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






9. How do you run a command with elevated privileges?






10. What is the /var/lib/nfs/etab file used for?






11. What command can you use to create a file system?






12. What is PAM used for?






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






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






15. What does the partprobe command do?






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






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






18. What is the last rule in the iptables file?

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19. What is a virtual host?






20. What are SELinux Booleans?






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






22. What does the rdnc-confgen command do?






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






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






25. Explain the difference between soft and hard limits in quotas.

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






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






28. What is the point of using SELinux?






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






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






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






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






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






34. Red Hat Enterprise Linux 6 is the only version that officially supports _______






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






36. What command can you use to view system processes and their CPU usage?






37. How can you check the currently mounted file systems?






38. The firewall service is...






39. How can virtual hosts be used?






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






41. What port does NFS use by default?






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






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






44. What is the virsh command used for?






45. What file is used to maintain custom parameters for the kernel during system boot?






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






47. What does S12rsyslog in the /etc/rc.d/rc2.d directory mean?






48. The exportfs command is used to...






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






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