Category: Computer Science homework help

 
Instructions
You will be required to write one term paper this semester. The specifications are as follows:
You must write a 5-8 page term paper on a topic of your choice related to cybercrime (ALL TOPICS MUST BE APPROVED). Some examples would include, how to avoid being a victim of cybercrime, the laws surrounding cybercrime, a recent incident related to cybercrime or pick an individual cybercrime and discuss the impact this crime has on society. Please write the term paper in a Word document and then upload it for grading.
Your term paper outline is due at the end of Week 2.
Your term paper is due at the end of Week 8.
In addition to the 5-8 pages of the paper itself, you must include a title page and a reference page.
Your title page must include the title of your paper, the date, the name of the course, your name, and your instructor’s name.
Your reference page must be written in APA citation style, Arial or Time New Roman styles, 12-point font.
Page margins Top, Bottom, Left Side, and Right Side = 1 inch, with reasonable accommodation being made for special situations.
Your paper must be in your own words, representing original work. Paraphrases of others’ work must include attributions to the authors. Limit quotations to an average of no more than 3-5 lines, and use quotations sparingly. It is always better to write the information in your own words than to directly quote.
When submitting the paper, it will automatically run through Turnitin for review. PAPERS WITH AN ORIGINALITY REPORT FROM TURNITIN OVER 15% OR OVER 2% FROM A SINGLE SOURCE WILL RESULT IN A ZERO GRADE.
PER THE STUDENT HANDBOOK, YOU CANNOT SUBMIT A PAPER THAT HAS BEEN SUBMITTED IN ANOTHER COURSE.

 
The purpose of this Assignment is to practice creating and interpreting an expected payoff table, which will help a hotel determine how many of its rooms to offer at a discount, and how many to offer at full price. By forecasting the expected revenue at different levels, you can help the hotel maximize its revenue by minimizing its discount rate while maximizing its occupancy rate. 
Assignment Instructions 
Scenario: You have been approached by a hotel owner who would like you to forecast expected payoffs for him. The hotel has 100 rooms, and they would like to maximize their revenue by selling as many as possible at full price, and selling the rest to travel brokers, such as Travelocity and Expedia, at a discounted price. The market rate for hotel rooms in their area is $279 per night. They feel that they can sell rooms for as little as $229 per night and still profit. Selling rooms for less than that would cause a financial loss. Every room left empty for a night reduces revenue, so they would rather discount some rooms than have them empty, but their preference is to sell as many rooms as they can at full price. Your task is to help the hotel owner find the best possible combination of full and discounted rooms in order to maximize hotel revenue. You will do this in Excel. Download the ExpectedPayoff.xlsx file. Tables for Expected Payoff and Opportunity Loss have been prepared for your use in that file. 
Complete the following steps: 
Fill in the Pricing Assumptions Table with the correct values from the scenario above. 
Create formulas in the Expected Payoff Table to calculate the amount of revenue the hotel owner will expect to earn for each combination of full and discounted rooms. Ensure that you never calculate a revenue amount that would represent more than the sale of 100 hotel rooms, as he only has 100 rooms to sell each night. Use a color to highlight the cell in each column that represents the maximum amount of revenue for each combination of full price and discounted rooms. 
Using the Likelihood percentages (row 8 in the spreadsheet), create formulas to calculate the Expected Payoff Calculations. Use a color to highlight the best expected payoff. 
Calculate the Price of Perfect Information. This is the difference between the revenue generated by selling all rooms at full price (there is only a 2% likelihood of that), and the best expected payoff calculated in step 3 above. 
Create formulas to complete the Opportunity Loss table. Opportunity loss is the difference between the best possible revenue and the actual revenue at each combination of full price and discounted rooms. Use a color to highlight the best (smallest) opportunity loss for each combination of full and discounted rooms. 
Using the Likelihood percentages (row 8 in the spreadsheet), create formulas to calculate the Expected Opportunity Loss calculations. Use a color to highlight the best (smallest) expected opportunity loss. 
In the conclusion area (cells R8 through U37 are merged for this), write an explanation of how your Expected Payoff Table will help the hotel owner. Identify one positive and one negative potential ethical issue the hotel owner will face in using this payoff table. 
Assignment Requirements 
For this Assignment, you are not required to cite sources or format according to APA style. Your only submission will be the completed Excel spreadsheet. If you use sources in your written conclusion, you should cite them. Be sure that you have saved the spreadsheet with all of your formulas, color coding, and written explanation before uploading it to the Unit 4 Assignment dropbox. 
Use the attached Excel document!!!!!!!!!

 
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.

Required 8 Pages.
    
Deliverable
You will conduct   a literature review (scholarly sources only) on Information Governance. You   will determine how researchers have attempted to examine that issue by   collecting data (you are not collecting data; just reporting on prior   research).
As you read   the literature, it will become apparent that there are multiple issues.   Select one issue that stands out in the literature and address it. You must   end up with at least five scholarly sources on which you will base your   paper. 
Format 
Your   paper will include the following sections. Do not use any format other than   an attached Microsoft Word file. Use a standard font style and size. A page   in the body of your paper (other than the Cover, TOC, and References) is   equivalent to approximately 250 words. In total, the body of your paper can   range from a minimum of eight pages (2,000 words). The match percentage cannot exceed 20% (highly suggested to   paraphrase sources).
Cover (1   page): 
Include your   name, course, and date.
Table of   Contents (1-2 pages): 
Use a   Microsoft Enabled Table of Contents feature.
Background   of the Problem (1-2 pages): 
Describe   the problem and elaborate on any previous attempts to examine that issue.
Research   Questions (1-2 pages):
For the   identified problem, discuss the research questions that were posed.
Methodology(-ies)   and Design(s) (2-3 pages):
Discuss   the methodology(-ies) (e.g., quantitative, qualitative) and design(s) (e.g.,   case study, survey) the researchers used. Describe some of the chosen populations.
Data   Analysis (2-3 pages):
Discuss   some of the findings.
Conclusions   (1-2 pages):
Discuss   some of the conclusions.
Professional   Application (1-2 pages):
Discuss   the relevance of the research to your own profession and/or career.
References   (1-2 pages):
Include   at least five scholarly references in APA format (all these must also be   cited throughout your paper).

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.

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.

Required 8 Pages.
    
Deliverable
You will conduct   a literature review (scholarly sources only) on Information Governance. You   will determine how researchers have attempted to examine that issue by   collecting data (you are not collecting data; just reporting on prior   research).
As you read   the literature, it will become apparent that there are multiple issues.   Select one issue that stands out in the literature and address it. You must   end up with at least five scholarly sources on which you will base your   paper. 
Format 
Your   paper will include the following sections. Do not use any format other than   an attached Microsoft Word file. Use a standard font style and size. A page   in the body of your paper (other than the Cover, TOC, and References) is   equivalent to approximately 250 words. In total, the body of your paper can   range from a minimum of eight pages (2,000 words). The match percentage cannot exceed 20% (highly suggested to   paraphrase sources).
Cover (1   page): 
Include your   name, course, and date.
Table of   Contents (1-2 pages): 
Use a   Microsoft Enabled Table of Contents feature.
Background   of the Problem (1-2 pages): 
Describe   the problem and elaborate on any previous attempts to examine that issue.
Research   Questions (1-2 pages):
For the   identified problem, discuss the research questions that were posed.
Methodology(-ies)   and Design(s) (2-3 pages):
Discuss   the methodology(-ies) (e.g., quantitative, qualitative) and design(s) (e.g.,   case study, survey) the researchers used. Describe some of the chosen populations.
Data   Analysis (2-3 pages):
Discuss   some of the findings.
Conclusions   (1-2 pages):
Discuss   some of the conclusions.
Professional   Application (1-2 pages):
Discuss   the relevance of the research to your own profession and/or career.
References   (1-2 pages):
Include   at least five scholarly references in APA format (all these must also be   cited throughout your paper).

 
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.