POS 420 Your world/uophelp.com

1. POS 420 Your world/uophelp.com For more course tutorials visit www.uophelp.com

2. POS 420 Your world/uophelp.com POS 420 Entire Course For more course tutorials visit www.uophelp.com POS 420 Week 1 DQs POS 420 Week 1 Summary POS 420 Week 2 DQs POS 420 Week 2 Summary POS 420 Week 3 DQs POS 420 Week 3 Summary POS 420 Week 4 DQs POS 420 Week 4 Summary

3. POS 420 Your world/uophelp.com POS 420 Week 1 DQ 1 For more course tutorials visit www.uophelp.com In your work this week, you have been introduced to Linux by logging in to the virtual desktop and working through the individual assignment. In your own words (not a rehash of the text or internet sources), what is a "shell?" Why are they important in an UNIX or Linux environment? Describe at least two elements of the shell that make it important in the Linux and UNIX environments. Your answer should be at least 250 of your own words.

4. POS 420 Your world/uophelp.com POS 420 Week 1 DQ 2 For more course tutorials visit www.uophelp.com In the article, “Should You Adopt Open Source Software?” by Ven, Verelst, and Mannaert, you read about some of the pros and cons of adopting open source software in an IT environment. In your own words, describe why you would or would not adopt open source software should you have the opportunity. Provide at least one concrete example that supports your opinion. Your answer should be at least 250 of your own words

5. POS 420 Your world/uophelp.com POS 420 Week 1 DQ 3 For more course tutorials visit www.uophelp.com Check out the website: http://lwn.net/Distributions/. You’ll note that there are many, many versions of UNIX and Linux that you could implement for your home or work use. Why do you believe there are so many varied versions of this operating system? What could be the advantage to having so many different versions available? What could be a disadvantage? Provide an example to support your opinion.

6. POS 420 Your world/uophelp.com POS 420 Week 1 UNIX and Linux Comparison Matrix For more course tutorials visit www.uophelp.com Individual UNIX® and Linux® Comparison Matrix Resources: University of Phoenix Material: UNIX® and Linux® Comparison Matrix Complete the UNIX® and Linux® Comparison Matrix located on your student website.

7. POS 420 Your world/uophelp.com POS 420 Week 2 DQ 1 For more course tutorials visit www.uophelp.com Most of the time, the words UNIX and Linux are used interchangably. While this is convention, there are differences between the two operating systems. What do you think are three differences between UNIX and Linux? Describe each and discuss why the difference may be important to an organization considering implementing either UNIX or Linux. Your answer should be at least 250 words.

8. POS 420 Your world/uophelp.com POS 420 Week 2 DQ 2 For more course tutorials visit www.uophelp.com Throughout this course, and through your own research, you’ll hear how one of the hallmarks of UNIX is its “out of the box” security. Whether this is a fact or not depends on who and when you ask. You can read an overview of UNIX Security here: http://www.kernelthread.com/publications/security/tunix.html. CERT (Computer Emergency Readiness Team) also has published a checklist that UNIX administrators can use to monitor and enhance the security of their UNIX systems at http://www.auscert.org.au/5816.

9. POS 420 Your world/uophelp.com POS 420 Week 2 DQ 3 For more course tutorials visit www.uophelp.com UNIX has been around since the late 1960s. Given the long history of the operating system, I would like you to read the Bell-Labs article on the history of UNIX, located at: http://www.bell-labs.com/history/unix/ In your opinion, what are 3 key points in the timeline of UNIX development? What do you think the impact of those points are on the current status of UNIX?

10. POS 420 Your world/uophelp.com POS 420 Week 2 Individual File Processing Commands Worksheet For more course tutorials visit www.uophelp.com File Processing Commands Worksheet Resource: University of Phoenix Material: File Processing Commands Worksheet Resource: University of Phoenix Materials: Linux® Directory Log Complete the Linux® Directory Log located on your student website.

11. POS 420 Your world/uophelp.com POS 420 Week 3 DQ 1 For more course tutorials visit www.uophelp.com You've read that one of the hallmarks of the UNIX operating system is the ability to modify the source code of the operating system (this holds true for Linux as well). What are two advantages to being able to modify the source code of the operating system? What are two disadvantages of being able to modify the source code of UNIX? Give an example of each.

12. POS 420 Your world/uophelp.com POS 420 Week 3 DQ 2 For more course tutorials visit www.uophelp.com For use in the weekly individual assignments, and to get a feel for what the UNIX or Linux of today looks like, we have been using Red Hat Linux 5. By this time, you may be considering investigating other versions of Linux. For this DQ, I'd like you to take a "Linux Distribution Chooser" test. It is 6 questions long. The chooser is here: http://desktoplinuxathome.com/distro.html Share with us the answers you chose for the questions, and the resulting top 4 distributions.

13. POS 420 Your world/uophelp.com POS 420 Week 3 DQ 3 For more course tutorials visit www.uophelp.com One of the biggest "complaints" people have of Linux is that there are few commercial applications available to compete with what is available in their current operating system. Pick two application categories (such as: Email, Word Processing, Spreadsheet, Money Management, Graphics, Music, Project Management) and locate an open source alternative for each. Give an overview of each product (brief - but at least a paragraph),

14. POS 420 Your world/uophelp.com POS 420 Week 3 Individual Linux® Script Worksheet For more course tutorials visit www.uophelp.com • Copy the following shell that completes the following: #!/bin/bash echo Select a country from the follow-ing list: echo America, Italy, France, Germany read country case $country in [Aa]merica ) echo Ford; echo Per-haps;; [Ii]taly ) echo Ferarri;echo no;;

15. POS 420 Your world/uophelp.com POS 420 Week 4 DQ 1 For more course tutorials visit www.uophelp.com Visit the UNIX family tree at: http://www.levenez.com/unix/ What are three things that interest or surprise you about the tree? For each of your items, describe what is interesting or surprising. You are welcome to name more than three! Your answer should be at least 200 words.

16. POS 420 Your world/uophelp.com POS 420 Week 4 DQ 2 For more course tutorials visit www.uophelp.com One of the largest (literally) uses of UNIX and Linux are for powering the world's supercomputers. Supercomputers are used mainly to simulate and perform large mathematical calculations. My favorite is the Earth Simulator in Japan - I love the idea of simulating Earth's conditions. It used to be in the top 5, and has now fallen to 68th in power and capability.

17. POS 420 Your world/uophelp.com POS 420 Week 4 DQ 3 For more course tutorials visit www.uophelp.com After three weeks of working on the Red Hat system, you have now had a pretty good opportunity to use a command line interface (CLI). Compare and contrast using the command line versus a graphical user interface (GUI) for system administration functions. What are at least two advantages and disadvantages of each? Your answer should be at least 300 words.

18. POS 420 Your world/uophelp.com POS 420 Week 4 Individual Systems Administration Scripting Log For more course tutorials visit www.uophelp.com Complete the Linux command skills worksheet that is provided in the week 4 Materials Posting

19. POS 420 Your world/uophelp.com POS 420 Week 5 DQ 1 For more course tutorials visit www.uophelp.com Attached to this DQ you will find a somewhat dated, but still useful, lecture I used to use in class which focuses on viruses and antivirus for UNIX/Linux operating systems. Each of the antivirus programs mentioned in the lecture is commercial - there is no mention of open source antivirus options. Why do you think this is? In at least 250 words, give three reasons (and support them) why open source antivirus technology has been slow to develop.

20. POS 420 Your world/uophelp.com POS 420 Week 5 DQ 2 For more course tutorials visit www.uophelp.com In chapter 16 of our "Beginning UNIX" text, you read about networking protocols available in UNIX, and how those protocols are used to power the internet. In your own opinion, what are some of the reasons why UNIX® Internet commands have remained mostly the same since the advent of the Internet? Your answer should be well supported and at least 250 words.

21. POS 420 Your world/uophelp.com POS 420 Week 5 DQ 3 For more course tutorials visit www.uophelp.com Discuss three things that you will take away from this course. You are free to discuss more, but you must have at least three. For each of your three things, describe why you felt it was important and how you will use it as you continue in your schooling or at work. Additionally, include in your summary the discussion question and assignment activity (or activities) you enjoyed most. Your summary should be at least 300 of your own words.

22. POS 420 Your world/uophelp.com POS 420 Week 5 Learning Team Assignment: UNIX vs. Windows Networking For more course tutorials visit www.uophelp.com • Finalize and submit a 10-12 page paper. • Prepare and submit a PowerPoint® presentation.

23. POS 420 Your world/uophelp.com For more course tutorials visit www.uophelp.com