All posts by : chebby

What are the various technologies employed by wireless devices to maximize their use of the available radio frequencies? Also discuss methods used to secure 802.11 wireless networking in your initial thread.

Please make your initial post and two response posts substantive. A substantive post will do at least TWO of the following:

• Ask an interesting, thoughtful question pertaining to the topic
• Answer a question (in detail) posted by another student or the instructor
• Provide extensive additional information on the topic
• Explain, define, or analyze the topic in detail
• Share an applicable personal experience
• Provide an outside source (for example, an article from the UC Library) that applies to the topic, along with additional information about the topic or the source (please cite properly in APA 7)
• Make an argument concerning the topic.

At least one scholarly source should be used in the initial discussion thread. Be sure to use information from your readings and other sources from the UC Library. Use proper citations and references in your post.

• Explain the purpose of an operating system for a personal computer.
• Give a brief description of the hardware components of a computer that the OS interfaces with. Motherboard, CPU, RAM, hard drive, sound controller, power supply, input and output devices, etc.

1). Download and install the “R” Programming tool (CRAN) onto your computer. First install the “Basic” version of “R”, then (2) install the “R” Studio. (3). Download and install the MySQL plug-in for Excel onto your computer. (4). Download and install the Python programming tool onto your computer. Verify successful installation of all tools by attaching one screen shot of each that display your completion of each software installation. A total of  four screen shots (2 for “R”, 1 for MySQL, and 1 for Python) is expected. Save the screen shots as a MS Word document (*.docx).

Either click the “Write Submission” link below and directly paste your screen shots into this forum OR add the screen shots as a Microsoft Word document attachment (Mac users, please remember to append the “.docx” extension to the filename.). Also, please summarize in 1 -6 lines (in the Comment box) how the installation went for you. That is, what problems, if any, did you have and how were they solved?  What things went right for you during the installation?

• Type your responses to the essay questions directly in the attached exam and save the file as: CMST_301_Final Examination.docx.
  • Submit the completed document to the Final Exam assignment folder 

1. You must answer 4 of the 8 essay questions. Should you answer more than 4, only the first 4 will be graded. Each essay is worth 25 points for a total of 100 points for the exam. The exam is worth 20% of your final grade. Be sure you organize your response covering all the aspects of the questions.
2. Length Requirement: Each essay response is required to be at least 500 words in length. Essay responses that are shorter will receive deductions based on how many words under (the farther from the designated length, the higher the deduction). Between 400-499 words, you will lose 5 points, under 400 words, you will lose 10 points.  Direct quotes do not count toward the word total. Please keep direct quotes to a minimum. Your response should be at least 90% original thought.   Also, I am expecting to see analysis and the synthesis of ideas in your essays (not just a manipulation of direct quotes with your words spliced in between). 
3. Content Requirements: Content must be comprehensive, accurate, and persuasive. Your response should be at least 90% original thought.  Must use data from a minimum of two scholarly sources to support statements and draw a thorough and convincing conclusion from the data. 
4. Bibliographical Requirement: Please do not use unprofessional sources such as Wikipedia, About.com, Answers.com, Dictionary.com, How.com, or anything remotely similar.  Examples of scholarly sources include our course content (e.g. Read & Watch resources), textbooks, journal articles, trade magazines, and conference proceedings. UMUC has a top-notch, extensive online library. You can find many scholarly sources there. Note: “Personal communications (e.g. Twitter Posts, Blogs, and YouTube Videos)” are not considered professional or scholarly sources.  Include at least TWO in-essay citations in EACH essay and a reference list at the END of each essay.
5. Formatting Requirements
   • The paper must follow APA guidelines throughout.  See Course Content>Course Resources>Sample Paper to Show Appropriate Document Formatting.
   • Double-spaced (including the reference page) with the first line of each paragraph indented.
   • 1-inch Margins
   • 12 point professional font 
   • Begin each essay on a separate page
6. This exam is **not** a group project. Your answers should be yours alone.
7. Please spell-check your work.

Question A

• In your own words explain why security architecture is important to an organization? and what does an assessor need to understand before she or he can perform an assessment?

Question B

Each week, research a unique news story or article related to Information Security/Information Technology. Post a summary of what you learned to the discussion thread, please also provide a link to the original article. Source is your choice; however please fully cite your source.

500 words

APA Format

1. Discuss the key components of human resource management. Pick at least four concepts from chapter nine and describe how these concepts interrelate to individual performance on a team.
2. Review table 9.2 and select one of the dimensions listed, note why it was chosen and how you relate to this behavior. If you have a personal experience, please share.
3. How do leaders select the best talent? What are some tools they can use to select the best-talent

Directions

List and describe the components of an information technology strategic plan.

Format

Students should use the following format for their written assignments.

1. Cite your resources in APA Style
2. Use Times New Roman—12-point font.
3. Use professional language.
4. Include a reference page

1. Part 1 –
   1. Following is the link of the Project and Dataset :

Quick Guide to Build a Recommendation Engine in Python & R

MovieLens 100K Dataset

1. Run the code several times and show the intended output…you also need to EXPLAIN the output…
2. You will also need to provide output for the following:
   1. Python file containing your code…
   2. Dimensions of the data…
   3. Sample of the data…
   4. Statistical summary of the data…
   5. Class distribution…
   6. One univariate and one multivariate diagram…
   7. Decision Tree…explain the best depth and why?…
   8. Results of training and new data, 80%-20% split…
      1. Accuracy report…what is it telling us?…
      2. Confusion matrix…what is it telling us?…
      3. Classification report…what is it telling us?…
   9. Results of training and new data, 50%-50% split…
      1. Accuracy report…what is it telling us?…
      2. Confusion matrix…what is it telling us?…
      3. Classification report…what is it telling us?…
3. Part 2 – Updated Code…
   1. Now that you have a working base of code, let’s apply it to a “real world” scenario…
   2. Find an article or video that shows a potentially SIMILAR usage of the application you created in Part 1…
   3. Update the original application so that it “works” for the NEW application…
   4. In this “Movie Recommendation” project, you might find an article on “book recommendations” …you would then update the original program to handle the new scenario…
   5. YOU MUST UPDATE THE ORIGINAL CODE…do not provide entirely new code base.
   6. Run the code several times and show the intended output…you also need to EXPLAIN the output…
   7. You will also need to provide the same output for THIS application, as you did for the ORIGINAL application…specifically:
      1. Python file containing your code…
      2. Dimensions of the data…
      3. Sample of the data…
      4. Statistical summary of the data…
      5. Class distribution…
      6. One univariate and one multivariate diagram…
      7. Decision Tree…explain the best depth and why?…
      8. Results of training and new data, 80%-20% split…
         1. Accuracy report…what is it telling us?…
         2. Confusion matrix…what is it telling us?…
         3. Classification report…what is it telling us?…
      9. Results of training and new data, 50%-50% split…
         1. Accuracy report…what is it telling us?…
         2. Confusion matrix…what is it telling us?…
         3. Classification report…what is it telling us?…

 You should be REPORTING EVIDENCE and EXAMPLES from what you read. 

Find, Read, and Share – THREE related sources of information

Report – Three things about the topic that you want to remember forever

1. Identify the topic for this week.
2. Find three high-quality sources of related information on the Internet. 
3. Read your chosen high-quality sources of related information.
4. state your three sources of information.
5. DESCRIBE each of the three sources of information within a few sentences providing EXAMPLES.
6. SUMMARIZE with three things about the topic that you want to remember forever.