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. To list under which run levels the web service will start






2. 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






3. ____ is used to modify file system parameters






4. ___________ can be on a RAID device






5. Virtual Host Configuration: Assigns an e-mail address for the specified virtual host.






6. ___ will tell me if any files in the pam package have changed since it was first installed






7. 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:






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






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






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






11. It's much more difficult and much more time-consuming to revise partitions with utilities such as ____ or parted after RHEL is installed.






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






13. To select a different device without having to restart parted - use the ____ command . Then - you can view its partition table or configure it.






14. Virtual Host Configuration: Specifies an IP address for multiple virtual hosts.






15. 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.






16. 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






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






18. 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






19. Create a disk label for the partition table called k






20. 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:






21. 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






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






23. ____ prints superblock and block group information.






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






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






26. The main Squid configuration file is ____/squid.conf






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






28. 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






29. List sboth the client hostname or IP address and mounted directory in host:dir format. This info should not be considered reliable.






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






31. The simplest way to install Apache






32. rpm ____ to install kernel updates






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






34. use parted to display disk geometry for /dev/hda and end up in shell






35. output from ____ is: Disk /dev/cciss/c0d0: 36.4 GB - 36414750720 bytes... plus listing of partitions - for each physical drive






36. This line: in /etc/hosts.allow: telnetd : 172.16.72.0/255.255.254.0 is ____






37. in httpd.conf - "____ None" disables any .htaccess files. Otherwise - .htaccess can allow others to administer your server - starting from the DocumentRoot directory. If .htaccess is in a subdirectory - such as /var/www/html/data/ - the additional di






38. after extending file system "homevol" - unmount it and then run _____ to make the filesystem size match the new larger volume.






39. how to install both mod_ssl and squid packages






40. 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






41. Virtual Host Configuration: Creates an error log; the location is based on the DocumentRoot.






42. rpm option to show me the package files






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






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






45. 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






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






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






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






49. after you edit /etc/exports - run service ___ stop...






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