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






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






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






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






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






6. FTP is one of three protocols ______________. The other two protocols are NFS and HTTP.






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






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






9. How can you verify the status of the SSH service after the system has booted?






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






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






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






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






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






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






16. What is the superblock used for?






17. The package selection screen allows you to install any software you want during the installation process as long as...






18. Does a DHCP server allow reserved IP addresses - If so - how?






19. By default - what is the path to a user's home directory?


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






21. What is the name of the section used to run scripts after a kickstart installation?






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






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






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






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






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






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






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






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






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






31. What is NAT - How is it used?






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






33. What port does the SMTP service run on?






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






35. 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...






36. What does the rdnc-confgen command do?






37. What happens to jobs that are scheduled to run while the system is off?






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






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






40. The old SysInit scripts have been replaced in Red Hat Enterprise Linux 6 for what new boot utility?






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






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


43. 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.






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






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


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






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






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






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






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