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 PAM used for?






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






3. What option needs to be used with the mount command to mount an NFS resource?






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






5. What command do you use to report information on quota usage?






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






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






8. What is the point of using SELinux?






9. To grow a file system






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






11. What command is used to create a user for Samba?






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






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






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






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






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






17. What is the top command used for?






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






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






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






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






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






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

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






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






26. Where are Yum repository config files located?






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






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






29. Can you name three utilities that can be used for network or DNS client troubleshooting?






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






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

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






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






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

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35. What port does the SMTP service run on?






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






37. Which remote management service is installed by default?Can you name the port that it uses?






38. A slave DNS server provides...






39. What is VNC?






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






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






42. It is possible to run scripts before a kickstart installation. This is done by...






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






44. The firewall service is...






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






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






47. What does ifconfig 172.168.1.100 netmask 255.255.255.0 eth1 do?






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






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

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50. How can virtual hosts be used?







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