Category: Computer Science homework help

 
IT 600 Final Project Guidelines and Rubric
Overview
IT professionals are often called upon to make decisions, provide recommendations, and perform analyses that require an in-depth understanding of the inner workings of an operating system. This summative assessment will provide students with the knowledge and skills required to achieve and maintain this level of understanding throughout their careers. For the summative assessment, students will perform a technical evaluation of an operating system. Students will be offered a choice of operating systems to analyze. Students will use real-time and log-based tools, empirical observation, and scholarly research to analyze the core subsystems of the operating system. For each subsystem, students will research and describe the technology used in that subsystem and compare it to other available technologies. For the final report, students will assess the results of their analyses and perform an overall evaluation of the operating system, with recommendations for how it might be improved.
For the summative assessment you will perform an in-depth technical evaluation of an operating system. The evaluation will be made in terms of the ability of the system and its supporting hardware to meet a set of organizational needs and technical requirements. The organization is a global enterprise that provides premium technical support to other enterprise businesses.
Management will use your evaluation as one element among several in their assessment of options for future technology adoption. You will define the technical requirements, based on tasks performed by the organization, the applications used, system loads, security, system management, maintenance, and performance. The scope of the evaluation will include analyses and assessments of the hardware-software interface, the techniques used to implement processes and threads, the file systems supported by the operating system, the input/output subsystem, and the operating system security features. You will use these analyses and assessments to produce a comprehensive evaluation, which will be written in the form of a detailed technology review.
SNHU will provide tools to support analysis of some commonly used operating systems, but you may select another operating system if you have the resources to do so. There will also be several milestones throughout the course that will allow you to develop the evaluation incrementally.
The project is divided into three milestones, which will be submitted at various points throughout the course to scaffold learning and ensure quality final submissions. These milestones will be submitted in Modules Two, Three, and Seven. Your final report will be submitted in Module Nine.
Prompt
Your technical evaluation of an operating system should include analyses and assessments of the hardware-software interface, the techniques used to implement processes and threads, the file systems supported by the operating system, the I/O subsystem, and the operating system security features. You will use these analyses and assessments to produce a comprehensive evaluation, which will be written in the form of a detailed technology review.
Specifically, the following critical elements must be addressed:
Organizational Needs and Requirements

Develop an organizational profile that analyzes the tasks performed by the organization, the computer applications in use or expected to be in use, and the estimated system loads anticipated for the operating system.
What are the organizational, security, and performance and reliability requirements related to operating system function,
management, and maintenance?

Computer Architecture

What hardware is required to host the operating system? This should include an identification of the minimal hardware required and an assessment of what would be needed to support organizational needs and requirements.
Analyze the architecture in terms of support and functionality of process management, memory management, I/O, and mass storage.
Analyze the architectural support for multiprocessor systems and assess the organization, connection, and control aspects. What are some architectural issues that might arise regarding technologies used in multiprocessor systems and how would you recommend utilizing multiprocessor systems in light of these issues?

Process Management

Assess the operating system process management in terms of its responsiveness to organizational requirements. Use process monitoring tools to gather data for your assessment.
Assess software tools for thread analysis and deadlock detection that are available for the operating system. What strategies does the operating system provide for handling deadlocks?
What support does the operating system provide for multiprocessing? Assess the applicability and ability of the operating system to allocate tasks between multiple processors.

Memory Management

Describe how the types of memory supported by the operating system are used. What memory abstraction does the system use? Use an analysis tool to investigate the mapping to physical memory.
Describe the system support for virtual memory, memory paging, and segmentation. Use a monitoring tool to assess their activity under heavily loaded conditions.
Assess the techniques used for memory management policy and mechanism separation and their utility in managing complexity.

I/O and Mass Storage

Describe the hardware-software interface for I/O management used by the operating system. Various techniques are used for enabling the operating system to communicate with devices. What techniques are supported and what are their advantages and disadvantages?
Analyze the file systems supported by the operating system. Use file system performance tests to assess the available file systems.
What is the relationship between scheduled process context switching and I/O interrupt handling? Analyze the use of device interrupts in the operating system and compare them to other possible approaches to input/output.

Security

What formal security model does the system support? Analyze the system to determine what support it provides for implementing security models and assess the relevant tools and services made available to administrators.
Recommend techniques and best practices to further support security of the operating system.

Overall Evaluation: Using the defined requirements, analyses, and assessments, develop a comprehensive detailed technology
recommendation. Include an integrated assessment of the operating system’s capability to support organizational needs and technical requirements.
Milestones
Milestone One: Situation Analysis
In Module Two, you will conduct a situational analysis. You will write a short paper that describes the business-related challenges faced by the organization. This milestone will be graded with the Milestone One Rubric.
Milestone Two: Analytical Organizational Profile
In Module Three, you will conduct an analytical organizational profile. Your work will be completed in the Milestone Two Template document. This milestone will be graded with the Milestone Two Rubric.
Milestone Three: Full Organizational Profile
In Module Seven, you will complete a full organizational profile. Your work will be completed in the Milestone Three Template document. This milestone will be graded with the Milestone Three Rubric.
Final Submission: Technical Evaluation of an Operating System
In Module Nine, you will consider the questions below and make revisions to the document you submitted for Milestone Three. With your Milestone Three document in front of you, consider the following and make revisions as necessary:
Have you incorporated all of the feedback and suggestions you received from your instructor?
Does your submission address all of the critical elements outlined above?
Does the operating system you selected match the specific requirements your organization identified?
Do you have title and references pages?
Is your submission at least 15 pages of content not including title and reference pages?
Have you supported each of your positions with a credible source?
Have you properly cited your sources and made proper attribution for any copyrighted graphics or photos?
Does your submission make a clearly stated recommendation for an operating system?
Your final submission should be a polished artifact containing all of the critical elements of the final project. It should reflect the incorporation of feedback gained throughout the course. This submission will be graded using the Final Project Rubric (below).
What to Submit
Your report should be 15 pages double-spaced paper or the completed template provided in Milestone Three, professionally written, with necessary citations in APA format and any accompanying visuals or additional artifacts submitted as part of an appendix section.

Instructions:  During the implementation of its new and improved back-office operating system, Top Secret, Inc. (TSI) finds that the TSI OS lacks mechanisms for the ordered acquisition of synchronization objects. The result is that its web servers are periodically locking up.
Systems administrators are perplexed because the systems show all processes are active using the [ps -ef] command except for the web server process, which appears to be waiting in a call to pthread_mutex_lock(). When they reboot the servers, the problem disappears until the servers get busy and the lock-up occurs again. The business impact of this problem is that TSI customers are unable to access the website to make purchases during peak periods.
Write a short paper that recommends a deadlock avoidance approach most suitable for the TSI web server application that is not using an ordered acquisition of mutexes.
 
Overview
During the implementation of its new and improved back office operating system, Top Secret, Inc. (TSI) finds that the TSI OS lacks mechanisms for the ordered acquisition of synchronization objects. The result is that its web servers are periodically locking up. Systems administrators are perplexed because the systems show all processes are active using the [ps -ef] command except for the web server process, which appears to be waiting in a call to pthread_mutex_lock(). When they reboot the servers, the problem disappears until the servers get busy and the lock-up occurs again. The business impact of this problem is that TSI customers are unable to access the website to make purchases during peak periods.
Prompt:Write a short paper that recommends a deadlock avoidance approach most suitable for the TSI web server application that is not using an ordered acquisition of mutexes.
What to Submit: Your paper must be submitted as a two-page Microsoft Word document (not including title and references pages) with double spacing, 12-point Times New Roman font, and one-inch margins. Your paper must cite at least two technically credible sources in APA format.

Cybersecurity principles of IT focus on a set of practices intended to keep a corporate infrastructure secure. These practices include, but are not limited to, system, data, internal, external, and physical security. The principles are designed to prevent unauthorized access or alterations of a corporate environment. By understanding how cybersecurity principles are defined, they can then be used to develop a comprehensive, corporate-specific security policy.
Using the format of your choice, create a chart that defines the principles of cybersecurity listed below:
Separation (of domains/duties)
Isolation
Encapsulation
Modularity
Simplicity of Design (economy of mechanism)
Minimization of implementation (least common mechanism)
Open Design
Complete Mediation
Layering (defense in depth)
Least Privilege
Fail-Safe Defaults (open/secure)
Least Astonishment (psychological acceptability)
Minimize Trust Surface (reluctance to trust)
Usability
Trust Relationships
For each of the principles listed, include the following:
Definition of the cybersecurity principle (1-2 sentences written in your own words).
Description for why each principle is important to security and how it enables the development of security mechanisms to implement desired security policies.
Include an in-text citation for each principle listed.

 
Business Case: London Heathrow Airport Launches BI and Machine Learning to Improve Airfield Management, Predict Passenger Flow, and Transform Airport Security
Heathrow airport in London is the second busiest international airport in the world, second only to Dubai international airport in number of airplanes landing and taking off each day and the seventh largest in terms of total passenger traffic. Managing over 215,000 passengers every day is a challenging task and requires a high degree of coordination to manage passenger traffic and give passengers a smooth airport experience. Any unexpected disruptions in the smooth workflow in operations at Heathrow such as damaged runways, storms, delayed or canceled flights, shifts in jet streams, etc. would disturb the entire functioning of the airport, passengers and airport employees.
Data analysts at London Heathrow were using Excel spreadsheets to analyze its airfield, passenger and flight data and sorely needed a centralized management system that would extract large volumes of data produced by airport operations and transform them into useful visual insights. Stuart Birrell, CIO at Heathrow was concerned that “We have tens of thousands of people who work around the airfield. Safety is critical. Adopting tools like Power BI makes life easier. It is the simple things. There is GPS in the airfield vehicles. If a driver finds a problem with the concrete, this can be recorded accurately.” Heathrow chose Microsoft Power BI as their BI solution. The reporting produced by its BI tool ensured airfield safety, allowed airport staff to function better and improved passenger management.
The key was moving from a paper-based, reactive operations model to a more predictive, proactive planning model in which staff were dealt fewer surprises on a day-to-day basis that enabled them to change their plans on-the-fly. The answer was BI reports and dashboards that were made available to airfield managers, security officers, transfers and customer service staff and a machine learning model that accurately predicts passenger flow in 15-minute increments into each terminal. Birrell says it’s possible to mash up historical scheduling data and a feedback loop to provide more accurate forecasts. With insights from these data analytics tools managers could plan staff breaks, open and close security lanes as needed and schedule staff shifts to balance passenger flow across the airport in peak times. As Birrell said, “For passengers, it is all about getting them to aircraft on time.” The new system also helps manage arrivals. Under the old model, if several flights came into the airport an hour early because of tailwinds immigration and baggage staff would have to scramble to react to the sudden spike of arriving passengers. After the predictive model was deployed, the airport manager could share the insights with air traffic control and security staff to better schedule immigration and security lanes and teams by knowing where passengers are arriving, how many of them are arriving and at what terminal to ensure the right number of immigration/security lanes are open and reduce time and stress for both passengers and airport staff.
For Birrell, the biggest challenges were not technology-related but were about a culture and mindset shift to get people onboard. “It’s easy to do a bit of data analysis with one or two experts. It’s more about how you deploy this around your organization; how do you get that security team of 4,000 to start using that data and change the way they’re working,” says Birrell. Now London Heathrow has people with its operations team who are deploying and building their own apps including one security officer who learned to build apps on his own with a little help from the IT department. So far, he has developed 12 apps to support his colleagues in security.
Questions:
Why did London Heathrow need to move up from Excel to a business intelligence platform?
What are the benefits that London Heathrow passengers experienced as a result of the new approach to data analytics?
Describe one specific way in which machine learning improved London Heathrow operations.
What was the biggest challenge that CIO Birrell faced in deploying BI and machine learning at London Heathrow?
Your paper should be at least 3 pages, not counting the title and reference pages. The paper must include at least 3 references from peer-reviewed articles in academic journals. Make sure you have in-text citations and a reference page. You can include additional references from websites and books. 

 
Create a PowerPoint presentation with following (Save as w8_firstname_lastname.PPTX).
We did not cover PowerShell in this course; you are tasked to use PowerShell as your scripting language.
Create at least 9 Slides to cover the following:-
1) The role of scripting in system administration
2) How to apply security measures in scripting
3) What is PowerShell
4) Can PowerShell run in other platforms
5) How to Assign variables
6) How to use if-then
7) How to use loops
8) How do I apply security on PowerShell scripts
9) How do I use PowerShell Scripting in everyday tasks?
Note: Please explain the above 9 requirements in your own words. Go into detail on each slide so it is clear that the concepts you are stating are explained and understood by you. For example, a list of security protocols will not be sufficient for full credit without an explanation of each protocol.
Requirements
Points
Comment block. (Slide 1)
10
Presentation
70
conclusion slide
30
TOTAL POINTS
100
Keep the presentation clean and simple, select soft colors and font size. Remember it is a presentation, you are presenting this to others with different skills.
Submit your week 8 work in w8_firstname_lastname.PPTX

  
Topic
Human Factors in Cybersecurity: Discuss how the human factor affects Cybersecurity. What is Social Engineering? How does it relate to Psychology? What are some techniques to implement Social Engineering? What are some of the countermeasures to detect/prevent Social Engineering? Is Social Engineering the only way to influence human behavior or are there other ways as well? What is Social Cybersecurity? 

 
Instructions
1. Quantum Cryptography is the future of cryptography. Quantum Cryptography is still being developed and as with every new technology, the Internet is booming with information about Quantum Cryptography. In this paper, you are going to synthesize what you think Quantum cryptography is and explain its applicability is next generation cryptographic algorithms and information privacy.

 
The Risks of Miscategorization
In discussing risk management and analytics, you should recognize that there is risk inherent simply in the conducting of analytics — especially predictive analytics. What if our predictions are false? What if the data upon which the predictions are based is incomplete or inherently flawed in some way? The purpose of this week’s discussion is to analyze the risks associated with categorical predictive analytics.
Research an instance where categorical prediction has been used by a business or governmental organization. Simply typing “categorical prediction” into www.news.google.com will reveal a number of news articles relating to this topic.
Read a few articles and select one that is interesting to you. Summarize it for the class. Make sure you identify the risks that your article addresses into one of the four quadrants of a risk matrix: High Probability/High Impact; High Probability/Low Impact; Low Probability/High Impact; Low Probability/Low Impact. Justify your classification with information from your article. Then, discuss the potential problems that could (or did) arise if the predictive activities discussed in your chosen article yielded bad results. What could (or did) happen as a result of erroneous or unreliable categorization through predictive modeling?

 
Unit Outcomes:
Integrate methods for assessing risks.
Prepare a rubric for classifying risk.
Report results of risk analysis.
Course Outcome:
IT528-3: Develop appropriate action plans that address risks.
Purpose
There are many methods for categorical prediction using principal components. In this Assignment, you will practice one of these — linear discriminant analysis, in R Studio. You will classify risk through the rubric of a risk matrix and then build a model to assess the risk. Once you have built a model, you will report and explain the results.
Assignment Instructions
Much has been made of the deteriorating public infrastructure in the United States. Roads, bridges, sidewalks, etc. need repair all over the country. This Assignment will focus on bridges. Engineers with responsibility for bridges categorize them into one of four categories with respect to risk: Monitor, Schedule Assessment, Schedule Repair/Replacement, or Immediate Repair/Replacement. Monitor means that the bridge is in good condition and is not in danger of failing. Schedule Assessment means that the bridge is showing signs of risk and should be evaluated. Schedule Repair/Replacement means that the bridge has deterioration that presents risk to users. Immediate Repair/Replacement means that the bridge has deterioration that presents risk of failure. In a Word document, create a four-quadrant risk matrix rubric and label the quadrants High Risk/High Impact; High Risk/Low Impact; Low Risk/High Impact; Low Risk/Low Impact. Place each of the four bridge conditions into the quadrant that you believe is appropriate for that condition. You need not have something in each of the four quadrants – your task is to appropriately assess and classify risk based on bridge condition. For each of the four bridge conditions, within the quadrant you selected in the risk matrix, give an example of an issue that may arise if the risk condition is not addressed.

 
Scenario
You are newly appointed to the communications team for a reputable, multi-faceted philanthropic organization, Momentum for Better. The current task for your team is to create a brand-new campaign that promotes Diversity, Equity, and Inclusion. To kick off this campaign, you have been asked to develop a mood board presentation and written summary that you will present to leadership at the upcoming annual meeting.
You are reminded that a mood board is a deliverable—a collage of images, colors, patterns/textures, and text—that visually describes the intended look & feel of the campaign.
You DON’T need to be an artist or designer to create a mood board, but you DO need to have a keen understanding of what various visuals communicate and how they make people feel. Keep in mind the various ways that you analyzed and evaluated visuals throughout this course.
Instructions
Mood Board Presentation
First, create a Microsoft PowerPoint presentation. Your presentation will need to have the slides listed below clearly labeled.
Visually compelling title slide
Colors and Patterns
Logos, Ethos, Pathos
Graphics
Delivery Methods
Memes
Second, think about the overall look & feel that you want the campaign to have. Then, search the web for examples of the kinds of images, graphics, colors, and patterns/textures that you have in mind.
Third, copy and paste those images, graphics, etc., into the appropriate slides of your Microsoft PowerPoint presentation. You must have at least four (4) images per slide, except for the Memes slide, which just needs two (2). The images should fill up as much of the slide as possible but DON’T stretch or squish the images. Here is more detail about the types of images you need to include in the slides.
Visually compelling title slide
Include one main image and a title for your presentation.
Include the organization’s name, Momentum for Better.
Colors and Patterns
Your color scheme must feature two colors.
Images of color swatches or things that are your chosen colors (e.g., fire engine red, canary yellow, etc.).
Patterns or textures that feature strong use of lines (e.g., stripes, swirls, borders, plaid, etc.).
Logos, Ethos, Pathos (choose one main rhetorical approach)
Photos of people that signify your chosen rhetorical approach.
Photos must include people of various genders, ethnicities, and ages.
Graphics
Logo and/or symbol graphics that convey diversity, equity, and inclusion.
Delivery Methods
Images of two (2) chosen delivery methods for spreading awareness about the campaign. For example, if you want social media to be one of the options, then include photos of a person using social media.
Memes
Create two (2) positive, inspiring memes that fit the overall message of Diversity, Equity, and Inclusion. Don’t make the memes funny, satirical, or divisive.
You can only use public domain or Creative Commons licensed images. You CAN’T use images from movies, shows, comics, books, video games, etc.
You may use PowerPoint, Canva, Adobe Express, Microsoft Paint, or any other app to create the memes. Save them as a JPG or PNG file, then insert them into your PowerPoint presentation.
Fourth, as you develop the visually compelling title slide and all the other slides, you need to demonstrate your understanding of visual presentation. In other words, your slides need to be aesthetically pleasing with good visual connectivity.
Written Summary
Once you’ve finished creating your mood board presentation, you need to write a detailed summary explaining why you chose the visuals that you did. Your summary should include the following:
In a Microsoft Word document, use APA formatting. The title on your title page must match the title slide of your mood board presentation.
Your introductory paragraph must explain your overall intended look & feel for the campaign and how it will communicate Diversity, Equity, and Inclusion. For example, will it be serene, energetic, serious, or something else?
Include section headings in your summary, and these must match the slide labels from your mood board presentation.
Each section must contain 2–3 full paragraphs explaining your chosen images in detail. Keep in mind how you’ve analyzed and evaluated visuals throughout this course. Connect them to the overarching message of Diversity, Equity, and Inclusion. You’ll be graded on your ability to defend your choices and clearly articulate your analysis.
Submit a PowerPoint presentation (PPTX) and Microsoft Word document (DOCX).