Test your basic knowledge |

Redhat Linux Administration

Subject : it-skills
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. ___ will tell me if any files in the pam package have changed since it was first installed






2. Apache supports security by specifying active ports through the Listen and ____ directives.






3. if you want to create a database file named webpass in the /etc/httpd directory - for user "e" - you'd start with the following command:






4. Run the ____ command to find the device associated with the USB key.






5. when an rpm install fails for xxxx because the same version is already apparently installed - run ____ to just install it all again






6. create a usb boot disk if the usb stick is /dev/sdc and the file you need is in your present directory






7. ____ is used to modify file system parameters






8. _____ will change the size of /dev/rootvg/tmplv to 4 gig






9. SELinux must be configured to Allow HTTPD To Read Home Directories. (Alternatively - activate the httpd_enable_homedirs boolean with the __ command.)






10. You can check the status of your share. If it's working - you should see the contents of the /etc/exports directory when you run the following command:






11. rpm ____ [name of package] to verify the package - once you have manually imported the key






12. ____.com - ____.net - and ____.org domains are generic domain names that can't be assigned on the Internet. You can therefore use any of these domain names on your private network.






13. ____ prints superblock and block group information.






14. Perform a simple check of the file system. minor-num is x.






15. If you configure other directories for Web services - you'll need to change their ACL settings. For example - if you create and then use the /www directory - run the following commands:






16. ____ configuration is not available via text mode RHEL installation.






17. You need to configure firewalls and allow SELinux access in appropriate ways. Firewalls must allow access to the standard HTTP port - 80. SELinux must be configured to "Allow HTTPD To Read Home Directories". Finally - the ACL must be revised accordin






18. create the basic cache directories in /var/spool/squid with the following command:






19. rpm ____ verifies all installed rpms against the rpm database






20. rpm ____ to import the rpm key for integrity checking






21. ___________ can be on a RAID device






22. The most straightforward way to make sure Apache starts in bootlevels 3 and 5






23. This line looks deceptively simple; it limits what readers see about your Web server when you browse to a nonexistent page. If you don't use this command - outsiders can see whether you've loaded modules such as Perl - Python - and PHP. Sharing this






24. ___ shows me what config files were installed when the httpd package was installed






25. If you want to add an iptables command to forward TCP port 80 traffic to TCP port 3128 - you would use the following:






26. rpm option to show me the package files






27. The default Red Hat Enterprise Linux firewall blocks access to an NFS server. While inelegant - the following command "flushes -" or turns off - the standard Linux firewall from the local computer.






28. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael/public_html if you want /home/michael/public_html accessible






29. ;'___ /var/www' will tell you the ACL settings of /var/www






30. You ran "e2label /dev/sda" and got "bad magic number" Why?






31. The RPM database also maintains an MD5 checksum of each file. With the checksum - you can use the ____ package command to determine whether any file from that RPM package has changed.






32. rpm options include rpm -q [package name] or rpm -qf [path/file] or rmp -q____






33. for SELinux - you'll at least want to use the Security Level Configuration tool to activate the Allow Squid Daemon To Connect To The Network option - also known as the squid_connect_any boolean. Alternatively - you can activate this boolean with the






34. When you configure Squid on your system - you need to allow access through appropriate ports and SELinux settings. The simplest approach with respect to Squid configuration assumes that all clients use the default Squid port 3128 - using TCP - where






35. use grep to count how many repositories have been configured in the file server1.repo






36. rpm ____ verifies the installed zip rpm against the rpm database






37. This line placed in /etc/hosts.deny sends a customized error message for Telnet users on the crack.org domain saying sorry [insert client info] - access denied






38. You can use the ____ tool after installation to add any package groups that you missed.






39. This line placed in /etc/hosts.deny will mean that only computer allowed to access our Telnet server has an IP address of 192.168.1.10






40. ___ http://devmon.dev.schwab.com/index.html will make a local copy of the index.html file from devmon






41. The rpm ____ option installs the package - if it isn't already installed.






42. for http - if you implement "UserDir public_html" - you need to also ____ /home/michael if you want /home/michael/public_html accessible






43. For linux ext2 there is an easier way than using resize2fs. LVM 1 ships with a utility called __________ which does the lvextend and resize2fs for you (it can also do file system shrinking)






44. The simplest way to install Apache






45. Virtual Host Configuration: Creates an custom log; the location is based on the DocumentRoot. (from http://www.books24x7.com/book/id_18196/viewer.asp?bookid=18196&chunkid=218985502)






46. You just finished editing your /etc/yum.repos.d/*repo file and want yum to use the new info - so you run ____






47. This line placed in /etc/hosts.deny denies all services except TFTP to computers in the example.org domain






48. ______ will show me volume info including vg - size - etc of /dev/rootvg/tmplv






49. To update a kernel - 1) ____ 2) boot new kernel to test 3) revert to old kernel if problems 4) yum remove kernel-oldversion if no problems






50. Some computers built before 1998 may have a BIOS that limits access to hard disks beyond the 1024th cylinder. Some older BIOSs report only 1024 cylinders on a hard drive no matter how many actual cylinders are present. Computers that are subject to t