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 /etc/hosts file used for?

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2. What commands can you use to add a client machine to an LDAP server?






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

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






5. What file needs to be edited so that the system will mount a file system at boot time?






6. The virt-install package allows you to manage virtual machines _____________. The virt-manager package allows you to manage virtual machines via a GUI interface.






7. What does the rdnc-confgen command do?






8. What does the partprobe command do?






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

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






11. What is the benefit of using public/private key authentication?

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12. What is SSH used for?






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






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






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






16. What is the top command used for?






17. What command and option can you use to enable a service to start on boot?






18. What does it mean if you ping a host and you receive the response Destination Unreachable?






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






20. The ____________ is available for each share.






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






22. What command can you use to create your own repositories?






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






24. What command can you use to query Boolean values?






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






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

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






28. What option can you change in the rsyslog config file to accept remote logs (acting as a centralized logging server)?






29. What are the five required directories when building RPMS?






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






31. What is the rndc utility used for?






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






33. What command can you use to monitor and troubleshoot network connections?






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






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






36. What port on the firewall needs to be open for the TFTP server to work?






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






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






39. What happens if a host changes its IP address and the keys don't match?

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40. Before you work with ACLs - what do you need to do to the file system?






41. A slave DNS server provides...






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






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






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






45. What command would you use to create a group - to add the user George to the group?






46. What command can you use to test connectivity to another host?






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






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






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






50. To grow a file system







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