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






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






3. What is the top command used for?






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






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






6. What are the two config files for Postfix called?






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






8. To grow a file system






9. The firewall service is...






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






11. If you want a specific action to take place when user01 logs in to the system - which file would you edit?






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






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


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






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






16. What protocols are used with Dovecot?






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






18. What is the rndc utility used for?






19. How would you go about creating a static route?






20. The portmap service was replaced by the ______________ in Red Hat Enterprise Linux 6.






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






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






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






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






25. Before you work with quotas - what do you need to do to the file system?






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


27. Can you name the two commands that can be used to view the free space on the system?






28. Where are Yum repository config files located?






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






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






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


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






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






34. What does the rdnc-confgen command do?






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


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






37. To create a RAID or LVM partition using kickstart






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


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






40. What does the testparm command do?






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






42. What two commands are used for package management?






43. What command can you use to view mounted Samba shares?






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






45. A slave DNS server provides...






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






47. What is the superblock used for?






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






49. What is the xinetd service used for?






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