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. Most boot issues can be resolved by...






2. What does it mean if you ping a host and you receive the response Destination Unreachable?






3. What is NAT - How is it used?






4. What is the xinetd service used for?






5. The exportfs command is used to...






6. What three components are needed to fully automate a kickstart installation?






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






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






9. What command can you use to create your own repositories?






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






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






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






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






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






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






16. What port does the SMTP service run on?






17. What does ifconfig 172.168.1.100 netmask 255.255.255.0 eth1 do?






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






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






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






21. What does the testparm command do?






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






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






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






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






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






27. What port does NFS use by default?






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






29. What command is used to show all services being controlled by the xinetd daemon?






30. How do you run a command with elevated privileges?






31. What is the format of the /etc/shadow file?






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






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






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






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






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






37. What is SSH used for?






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






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

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






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






42. Which version of SSH should you use?






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






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






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






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






47. 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...






48. What are the five required directories when building RPMS?






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

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