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 can you use to view NFS statistics?






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






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






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






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






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






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






8. What port does NFS use by default?






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






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






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






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






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






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






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






16. Through its main config file - SSH can be configured to...

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






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

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

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20. What is SSH used for?






21. What is the point of using SELinux?






22. What is VNC?






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






24. What does ifconfig 172.168.1.100 netmask 255.255.255.0 eth1 do?






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






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






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






28. What protocols are used with Dovecot?






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






30. What is PAM used for?






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

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32. What is the rndc utility used for?






33. What is a virtual host?






34. What are SELinux Booleans?






35. Where are Yum repository config files located?






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

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37. What command can you use to view the current ACL on a file?






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






39. What is a swap? Is it created as a partition or device file?






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






41. What is NAT - How is it used?






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






43. What is the benefit to using centralized authentication?

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






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

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46. If you want a specific action to take place when user01 logs in to the system - which file would you edit?






47. How can virtual hosts be used?






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






49. What option is used with both the fdisk and parted commands to display the current partition tables?






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