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






3. What protocols are used with Dovecot?






4. What option at the GRUB boot menu can you use to append something to a kernel?






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

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






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






8. What command can you use to change the context of files?






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






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






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






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






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






14. What are SELinux Booleans?






15. What port does the SMTP service run on?






16. What does the rdnc-confgen command do?






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






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






19. 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...






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






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






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






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






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






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






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






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






28. What is PAM used for?






29. What command would you use to create a group - to add the user George to the group?






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






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






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






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






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






35. What command can you use to view NFS statistics?






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

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






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






39. What does virsh reboot Client04 do?






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

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






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






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






44. What is the default port that Squid runs on?






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






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






47. The ____________ is available for each share.






48. What is the top command used for?






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

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