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 does ifconfig 172.168.1.100 netmask 255.255.255.0 eth1 do?






2. What is SSH used for?






3. What options with the yum command would you use to remove a package?






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






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






6. How can you list all services on the system to tell whether they will boot during startup?






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






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






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






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






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






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






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






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






15. What option is used to allow anonymous uploads to the FTP server?






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






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






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

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






20. In Red Hat Enterprise Linux 6 - the default for SELinux is _______________ (which can be changed after the installation completes). For Red Hat Enterprise Linux 5 - you were able to choose what mode you wanted SELinux to start in.






21. What command do you use to report information on quota usage?






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






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






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






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






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






27. What command can you use to view the current ACL on a file?






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

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






30. What port does NFS use by default?






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

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






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






34. What is PAM used for?






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






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






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






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






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






40. How can virtual hosts be used?






41. What command can you use to test connectivity to another host?






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






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






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






45. What two ports should be opened on the firewall for the FTP server to function properly?






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






47. What two commands are used for package management?






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






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






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