NPTEL Software Testing Week 11 Assignment 11 Answers 2022

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NPTEL Software Testing Week 11 Assignment 11 Answers 2022

NPTEL Software Testing Week 11 Assignment 11 Answers 2022 :

Q.1. State yes or no: Is concolic testing a white-box testing technique?

  • Yes
  • No

Q.2. Which of the following is true about concolic testing?

  • Concolic testing is used instead of symbolic testing when the latter fails.
  • Concolic testing keeps concrete state and symbolic state.

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Q.3. What is the use of a SAT/SMT solver in symbolic testing?

  • SAT/SMT solvers are used to collect path constraints in symbolic testing.
  • SAT/SMT solvers are used to solve path constraints and get values that can be used as test inputs.
  • Constraint solvers are not useful in symbolic testing as not all path constraints can be collected and solved.
  • Constraint solvers on predicates always return true or false values which helps to decide the execution paths.

Q.4. State true or false: Symbolic execution can be used to detect non-termination in programs.

  • True
  • False

Q.5. Which of the following is a list of techniques used in the algorithm deployed by DART?

  • Random testing, symbolic testing and constraint solvers.
  • Symbolic testing and automated testing.
  • Directed search, random testing and constraint solvers.
  • Concrete testing and symbolic testing.

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Q.6. Which of the following strategy is used for input search in concolic testing?

  • Random search
  • Systematic, random search interleaved with path-sensitive search.

Q.7. What does the code fragment do?

  • It checks if x is greater than y
  • it checks if y is greater than x
  • It swaps the values of x and y.
  • It swaps the values of x and y twice.

Q.8. How many decision points and execution paths are there in the code fragment?

  • Two decision points and three execution paths.
  • Three decision points and four execution paths.

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Q.9. What will be the path constraint at line 1 of the code fragment such that program exits without further execution?

  • x>y
  • x<= y

Q.10. State yes or no: Is the error statement reachable in the given program fragment?

  • Yes
  • No

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About NPTEL Software Testing Course:

This course provides a detailed overview of entrepreneurship as the foundation of business growth and value creation in the national economy. It provides multiple constructs for entrepreneurs to be successful, and pathways for their companies to achieve sustainable growth. Each week/module of the course will cover one specific theme/topic with conceptual perspectives as well as practical examples.
Upon successful completion of the course, the student will gain an expansive and deep appreciation of entrepreneurship and its pivotal role in the economy. The student or aspiring entrepreneur will be able to approach entrepreneurship with clarity and focus, and an enhanced understanding of the key success factors as well as possible risks and potential mitigation strategies. A practising entrepreneur is likely to be able to navigate the opportunities and challenges of entrepreneurship more effectively with the additional insights available. 
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The course structure and content covers, over a period of 12 weeks, the following 15 modules.

  • Module 1: Entrepreneurial Journey
  • Module 2: Entrepreneurial Discovery
  • Module 3: Ideation and Prototyping
  • Module 4: Testing, Validation and Commercialisation
  • Module 5: Disruption as a Success Driver
  • Module 6: Technological Innovation and Entrepreneurship – 1
  • Module 7: Technological Innovation and Entrepreneurship – 2
  • Module 8: Raising Financial Resources
  • Module 9: Education and Entrepreneurship
  • Module 10: Beyond Founders and Founder-Families
  • Module 11: India as a Start-up Nation
  • Module 12: National Entrepreneurial Culture
  • Module 13: Entrepreneurial Thermodynamics
  • Module 14: Entrepreneurship and Employment
  • Module 15: Start-up Case Studies
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