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 port does the Apache web server run on - What about HTTPS?






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






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






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






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






6. What command disables the SSH service from running when the system boots?






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






8. Which version of SSH should you use?






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

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






11. Editing the /etc/xinetd.d/tftp file and enabling the service are the same as running the chkconfig tftp on command. Both of these actions...






12. What is the superblock used for?






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






14. What is SSH used for?






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






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






17. How can you change the security context of a directory to work with Apache?






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






19. To grow a file system






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






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






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






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






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

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25. What command displays your current interfaces and IP address?






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






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






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






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






30. To create a RAID or LVM partition using kickstart






31. What is the benefit to using centralized authentication?

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32. What port on the firewall needs to be open for the TFTP server to work?






33. What does the partprobe command do?






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

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






36. What command and option do you use to view the description of Boolean values?






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






38. What port must be opened on the firewall for DNS?






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






40. Samba servers can...






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






42. What is VNC?






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






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






45. A PXE server eases the automation process but isn't required for...






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






47. The firewall service is...






48. What port does NFS use by default?






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






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