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






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






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






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






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






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






7. What command can you use to get information about logical volumes?






8. Are additional packages besides httpd required for a secure website - If so - what are they?






9. What command (and options) can be used to create a user named George with the description "Jr Admin"?






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






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






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






13. What port does the rndc utility listen on by default?






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






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






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






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






18. What two commands are used for package management?






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






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






21. What is the xinetd service used for?






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






23. The ____________ is available for each share.






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






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






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






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


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






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






30. What protocols are used with Dovecot?






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


32. Where are Yum repository config files located?






33. What command can be used to easily list all the options in the FTP main config file?






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






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






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






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


38. What command can you use to create a password-protected page?






39. The default SMTP service has been changed from _________ to Postfix in Red Hat Enterprise Linux 6.






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






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






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






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






44. Do you need to write changes to the disk when using the parted command? What about fdisk?






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






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


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






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






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






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