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






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






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






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






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






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






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

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8. What is the rndc utility used for?






9. Is it possible to share files among groups - What permissions would you set on the directory to accomplish file sharing if possible?






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






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






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

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






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






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






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






17. A service needs to have _______________ to be able to use it.






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






19. What is a virtual host?






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






21. What directory is used to represent the virtual file system created by the kernel?






22. 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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23. What is PAM used for?






24. What is the /etc/vsftpd/user_list file used for?






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






26. What command can you use to view NFS statistics?






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

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






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






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






31. What command can you use to validate the syntax of the Apache config file?






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






33. The exportfs command is used to...






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






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






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






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






38. What protocols are used with Dovecot?






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






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






41. What is SSH used for?






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






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






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






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






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






47. What command can you use to view mounted Samba shares?






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






49. What three protocols can you use to perform network installations?






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