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

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

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






4. GRUB has three stages. Can you name them?






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






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

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






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






9. What two commands are used for package management?






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






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






12. Is it possible to share files among groups - What permissions would you set on the directory to accomplish file sharing if possible?






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






14. How can virtual hosts be used?






15. What command is used to create an RPM package?






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






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






18. 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...






19. To grow a file system






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






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






22. The virt-install package allows you to manage virtual machines _____________. The virt-manager package allows you to manage virtual machines via a GUI interface.






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






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






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






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






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






28. What does the testparm command do?






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

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






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






32. What are the three modes in which the rpm command can operate?






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






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






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






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






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






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






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






40. What does virsh reboot Client04 do?






41. What does the rdnc-confgen command do?






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






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






44. What is the xinetd service used for?






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






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






47. What is a virtual host?






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






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






50. What is the superblock used for?