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 superblock used for?






2. What is PAM used for?






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






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






5. How would you disable SELinux protection for NFS - allowing shares to be read/write?






6. What port does the SMTP service run on?






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






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






9. What is the name of the package used to install an FTP?






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






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






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






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






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






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






16. What is the biggest benefit to using LVM over basic partitions?






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


18. Which file contains all messages generated during installation that can be used for troubleshooting if the need arises?






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






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






21. Samba servers can...






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






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






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






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






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






27. How would you install a group of packages all at a single time?






28. Place all files you want added to a _______________ during creation.


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






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






31. What is the main config file for the DHCP service?






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






33. What is VNC?






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






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






36. What are the three different types of RAID described in this chapter?






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






38. What is the difference between an A record and a PTR record?






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






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


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






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






43. What three commands can you use to help verify that the DNS server is functioning properly?






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






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






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






47. What is the benefit to using centralized authentication?


48. What is SSH used for?






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






50. What port does NFS use by default?