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. 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






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






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






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






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






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






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






8. Virtual Host Configuration: Sets a root directory for the virtual host.






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






10. logical partitions on a hard drive always start with number ____; on the first PATA/IDE hard drive on a PC - that is hda____.






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






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






13. 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






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






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






16. 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






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






18. 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






19. ___________ can be on a RAID device






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






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






22. 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






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






24. 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:






25. ____.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.






26. 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.






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






28. To check status of ftp daemon






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






30. rpm option to show me the package files






31. 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






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






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






34. 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.






35. To verify integrity of an rpm package - ____/rpm-gpg/RPM-GPG-KEY-redhat-release






36. 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:






37. 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






38. ____ is used to modify file system parameters






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






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






42. rpm ____ to install kernel updates






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






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






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






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






47. 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)






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






49. ____ can expand and shrink ext2 and ext3 file systems






50. how to install both mod_ssl and squid packages







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