SECTION A: ANSWER ALL QUESTIONS FOR 15 MARKS Q1. Define ROCOF as a measure of reliability...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
SECTION A: ANSWER ALL QUESTIONS FOR 15 MARKS Q1. Define ROCOF as a measure of reliability [4 Marks] Q2. Explain what is meant by "fault avoidance'. [3 Marks] Q3. What is an equivalence partition? Give an example [4 Marks] Q4. What general principle underlies unit testing? [4 Marks] SECTION B: ANSWER ALL QUESTIONS FOR 15 MARKS Q1. What is the common characteristic of all architectural styles that are geared to supporting software fault tolerance? [5 Marks] Q2. Exponential distribution is most widely used distribution in reliability and risk assessment. The exponential distribution is closely related with the Poisson distribution which is discrete. If the number of failure per unit time is Poisson distribution then the time between failures follows exponential distribution. A system has a failure rate λ = 10^/h, what is the probability that A. it will fail before 1000 h B. it will survive at least 10,000 h [5marks] [5marks] SECTION C: ANSWER THREE QUESTIOS FOR 30 MARKS Q1. A. What do you understand by the term 'stress testing'? [4 Marks] B. Mentcare system has been designed as a client- server system with the possibility of downloading to a client. Suggest how you might stress test the Mentcare system. [6 Marks] Q2. When would you normally replace all or part of a legacy system rather than continue maintenance of the software? [10 Marks] Q3. You are responsible for the design of a communications switch that has to provide 24/7 availability, but which is not safety-critical. Giving reasons for your answer, suggest an architectural style that might be used for this system. [10 Marks] Q4. What is a software metric? Define different types of software metrics with examples. [10 Marks] SECTION A: ANSWER ALL QUESTIONS FOR 15 MARKS Q1. Define ROCOF as a measure of reliability [4 Marks] Q2. Explain what is meant by "fault avoidance'. [3 Marks] Q3. What is an equivalence partition? Give an example [4 Marks] Q4. What general principle underlies unit testing? [4 Marks] SECTION B: ANSWER ALL QUESTIONS FOR 15 MARKS Q1. What is the common characteristic of all architectural styles that are geared to supporting software fault tolerance? [5 Marks] Q2. Exponential distribution is most widely used distribution in reliability and risk assessment. The exponential distribution is closely related with the Poisson distribution which is discrete. If the number of failure per unit time is Poisson distribution then the time between failures follows exponential distribution. A system has a failure rate λ = 10^/h, what is the probability that A. it will fail before 1000 h B. it will survive at least 10,000 h [5marks] [5marks] SECTION C: ANSWER THREE QUESTIOS FOR 30 MARKS Q1. A. What do you understand by the term 'stress testing'? [4 Marks] B. Mentcare system has been designed as a client- server system with the possibility of downloading to a client. Suggest how you might stress test the Mentcare system. [6 Marks] Q2. When would you normally replace all or part of a legacy system rather than continue maintenance of the software? [10 Marks] Q3. You are responsible for the design of a communications switch that has to provide 24/7 availability, but which is not safety-critical. Giving reasons for your answer, suggest an architectural style that might be used for this system. [10 Marks] Q4. What is a software metric? Define different types of software metrics with examples. [10 Marks]
Expert Answer:
Related Book For
Posted Date:
Students also viewed these programming questions
-
What did you find enlightening? Did you find anything that was surprising to you? What did you find to be the most useful information for you as a business professional?
-
In a small group, discuss the views expressed by the following three auditors. Auditor 1: "Risk analysis is good. But, when all is said and done, it does not add much to the audit. You still need to...
-
Write a short report in which you assess the impact of one piece of health and safety legislation in an organisation of your choice.
-
The Poisson distribution is often appropriate in the "binomial" situation of n independent and identical trials, where each trial has probability p of success, but n is very large and p is very...
-
Fisher Inc. began operations on January 1, 2020. During its first year, $750,000 of common shares were issued and a loss of $28,000 was realized. In 2021, Fishers second year of operations, an...
-
Auditors do not often have the luxury of testing 100 percent of the transactions and events underlying account balances or classes of transactions. More often, they rely on samples, thereby reducing...
-
Irwin Corporation has been authorized to issue 20,000 shares of $100 par value, 10%, noncumulative preferred stock and 1,000,000 shares of no-par common stock . The corporation assigned a $2.50...
-
One subunit of Speed Sports Company had the following financial results last month: (Click the icon to view the financial results.) Read the requirements. Requirement 1. Complete the performance...
-
Required information [The following information applies to the questions displayed below.] The following transactions apply to Jova Company for Year 1, the first year of operation: 1. Issued $27,000...
-
Depreciation by three methods; partial years Layton Company purchased tool sharpening equipment on October 1 for $33,210. The equipment was expected to have a useful life of 3 years or 3,780...
-
ABC 2. The "Energy-Efficient Home Improvement Credit," defined by the latest tax law, is valid until the end of the 2032 tax year. After that, however, IRC Section 25C only applies to property put...
-
Raw Materials Inventory 7/1/19 Raw Materials Inventory 6/30/20 Finished Goods Inventory 7/1/19 Finished Goods Inventory 6/30/20 Work in Process Inventory 7/1/19 Work in Process Inventory 6/30/20...
-
Machine Replacement Decision A company is considering replacing an old piece of machinery, which cost $597,300 and has $349,600 of accumulated depreciation to date, with a new machine that has a...
-
Ivanhoe Industries Limited purchased a strip mine for cash on April 1, 2020 at a cost of $5,787,000. Ivanhoe expects to operate the mine for 10 years, at which it is legally required to restore the...
-
After Tonya moved to Chicago, she realized that her local Target store did not stock swimming suits year-round, unlike the Target she used to visit in Tampa. Which type of segmentation does this...
-
Using the example we had in Planning for the future. You would like to own a house in about 10 years, and your research in the real estate market suggest that the down payment will be about 950, 000...
-
Dan and Diana file a joint return. Dan earned $31,000 during the year before losing his job. Diana received Social Security benefits of $5,000. a. Determine the taxable portion of the Social Security...
-
Working individually or in groups, research the unemployment rate and laws of your state. Write a summary detailing your states unemployment laws. Assuming Company X has a 30% rate of personnel...
-
Discuss at least four procedural suggestions for managing dismissals effectively.
-
What does www.seiu.org/ tell you about this unions aims and how they intend to achieve them?
-
What services does an underwriter provide for a company that employs the underwriter to facilitate going public? What factors influence an issuing firms choice of underwriter?
-
From the perspective of the entrepreneur, what are the pros and cons of an IPO as opposed to private sale of the venture to a public company in exchange for stock or cash?
-
Describe the process of going public using an IPO, starting with underwriter selection and proceeding through the various stages that lead to determination of an issue price.
Study smarter with the SolutionInn App