1. Give an example from the book where insufficient testing was a factor in a program error or system failure.
2. What was one cause in the delay in the completing of the Denver Airport.
3. Why didn’t the healthcare.gov website work at first?
4. What is one characteristic of high reliability organizations?
5. Describe the potential risks of alert fatigue in EHR systems.
6. What were 2 common factors in both the Therac-25 case and the space shuttle disaster.
7. What does design for failure mean?

Problem-1: Create the network topology 

Write a python script to create the topology given in the Fig.1. In this topology H1, H2, H3, and H4 are hosts and S1, S2, S3, and S4 are OpenFlow switches. Specify bandwidth, delay and loss rate for each link of your choice. Assign appropriate port numbers to the switch interfaces and accordingly use in your implementation.

Fig.1

Please refer attached document  for topology(Figure)

Problem-2: Push the flow rules 

Implement a controller which pushes flow rules on switches to satisfy following traffic constraints.

· No traffic should be allowed between H3 and H1.

· The HTTP traffic between H4 and H1 should be routed through Switch S2 and any other traffic between H4 and H1 should be routed through Switch S3.

· The traffic between H3 and H2 should be routed through Switch S3.

· The traffic between remaining nodes should follow shortest path.

Problem-3: Link Bandwidth Measurement 

Once the flow rules are pushed, create necessary traffic flows to calculate instantaneous bandwidth for the following:

· Measure and print the instantaneous bandwidth on the links connected to the Switch S2.

Problem-4: Packet loss Count for a specific traffic flow 

· Calculate the packet loss count between the switches S4 and S1 for the HTTP traffic flow

H4 —S4 — S2 — S1 — H1

· Calculate the packet loss count between the switches S4 and S1 for the non-HTTP traffic flow

H4 —S4 — S3 — S1 — H1

Deliverables:

1) Topology implementation file: prob1.py

2) Controller implementation file: prob2.py

3) Controller implementation file: prob3.py

4) Controller implementation file: prob4.py

*******

finish it in 2 days

Check Attachment!!!

C sharp multiple choice question

Final Paper Assignment: 

Write a 3-4 page APA formatted paper comparing your organization’s disaster recovery and business continuity plans with the best practices outlined in your course text.  Content should include, but not be limited to:  selecting the DR. team, assessing risks and impacts, prioritizing systems and functions for recovery, data storage and recovery sites, developing plans and procedures, procedures for special circumstances, and testing the disaster recovery plan. 

Your paper should include an abstract and a conclusion and a reference page with 3-5 references:

 Mrs Parker owns and operates a meat shop that processes and packages parcels of minced meat that is being sold to schools in the US. Her scales are all calibrated to perform measurement in pounds, however when the parcels are packaged, they need to be labelled in ounces. Mrs Parker has established that 1 pound is equivalent to 16 ounces. In each production cycle, 250 packs of meat are processed and the weight in pounds varies for each package. Mrs Parker is also interested in knowing the total costs, the total revenue and the total profit of each production run, given that the costs to produce and package an ounce of meat is US $0.25 and that the selling price of an ounce of meat is US $0.55. Because you are a budding Software Engineer, she has sought your assistance in creating a software solution that can be used within the business establishment. 

Required: A. Specifically identify the type of control structure which is needed to process the meat in each production run and provide a reason for your choice (4 marks) 

B. Your solution needs to represent the meat packages which are to be processed, how would you represent this appropriately in your program and what has guided your choice?  (4 marks) 

C. Construct a C# program that will solve Mrs Parker’s dilemma by making use of the choices made above. 

i. Implementation of the control structure to process the meat (2 marks) 

ii. Implementation of the meat packages to be processed (2 marks) 

iii. Calculation of costs, revenues, and profits (6 marks) 

iv. Appropriate program outputs displayed to the user 

You have been hired as the CSO (Chief Security Officer) for an organization. Your job is to develop a computer and internet security policy for the organization that covers the following areas:

• Computer and email acceptable use policy
• Internet acceptable use policy
• Password protection policy

Make sure you are sufficiently specific in addressing each area. There are plenty of security policy and guideline templates available online for you to use as a reference or for guidance. Your plan should reflect the business model and corporate culture of a specific organization that you select. 

 Include at least 3 scholarly references in addition to the course textbook.  The UC Library is a good place to find these references. At least two of the references cited need to be peer-reviewed scholarly journal articles from the library.

Your paper should meet the following requirements:

• Be approximately four to six pages in length, not including the required cover page and reference page.

• Follow APA7 guidelines. Your paper should include an introduction, a body with fully developed content, and a conclusion.

• Support your answers with the readings from the course and at least three scholarly journal articles to support your positions, claims, and observations, in addition to your textbook. The UC Library is a great place to find resources.

• Be clearly and well-written, concise, and logical, using excellent grammar and style techniques. You are being graded in part on the quality of your writing.

Project assignment is to have you do more research on the topic of Data Analytics and Visualization. In this project you will need to do some research. Select any software that can help you with data analytics, it can be R programming, it can be Tableau, anything. Research the software and write a paper on its capabilities with examples.

This assignment is worth 100 points.

Here is what needs to be done:

1. Submit at least 2 but no more than 4 pages double spaced, APA style MS Word document.

2. Only 2 graphics or figures allowed.

3. Reference all sources used. Use APA style references.

Four short answer questions related to  Binary Search Tree and Red Black tree.

The questions are in the file, and I also uploaded the book.

thanks for helping