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Welcome to the Software Testing MCQs Page

Dive deep into the fascinating world of Software Testing with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Software Testing, a crucial aspect of Software Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Software Testing, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Software Engineering.

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Check out the MCQs below to embark on an enriching journey through Software Testing. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Software Engineering.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Software Testing. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Software Testing MCQs | Page 42 of 43

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Q411.
Does the effectiveness of fault correction remain constant over time in the BM model?

a.

Yes, it remains constant

b.

No, it decreases with time

c.

The effectiveness of fault correction is not mentioned in the BM model

d.

The effectiveness of fault correction is not perfect in BM

Discuss
Answer: (a).Yes, it remains constant Explanation:In the BM model, the effectiveness of fault correction is constant, although not necessarily 100%. This is shown by the linearity of the failure intensity function.
Q412.
Does the expected number of failures in infinite time in the LPM model become infinite?

a.

Yes, it becomes infinite

b.

No, it remains finite

c.

The expected number of failures in infinite time is not mentioned in the LPM model

d.

It depends on the effectiveness of fault correction

Discuss
Answer: (a).Yes, it becomes infinite Explanation:In the LPM model, the expected number of failures in infinite time is infinite.
Q413.
How does the effectiveness of fault correction change with time in the LPM model?

a.

It remains constant

b.

It decreases with time

c.

It increases with time

d.

The effectiveness of fault correction is not mentioned in the LPM model

Discuss
Answer: (b).It decreases with time Explanation:In the LPM model, the effectiveness of fault correction decreases with time due to factors such as the difficulty in locating faults or decreased motivation.
Q414.
What is the number of failures expected in a certain time period in both BM and LPM models when faults are not being corrected anymore?

a.

The number of failures expected follows a binomial distribution

b.

The number of failures expected follows a Gaussian distribution

c.

The number of failures expected follows a Poisson distribution

d.

The number of failures expected is not mentioned in both models

Discuss
Answer: (c).The number of failures expected follows a Poisson distribution Explanation:When faults are not being corrected anymore, both BM and LPM models reduce to a homogeneous Poisson process with failure intensity as the parameter. The number of failures expected in a certain time period follows a Poisson distribution.
Q415.
What are the techniques used to estimate the parameters in BM and LPM models?

a.

Maximum Likelihood

b.

Least Squares

c.

Both Maximum Likelihood and Least Squares

d.

Neither Maximum Likelihood nor Least Squares

Discuss
Answer: (c).Both Maximum Likelihood and Least Squares Explanation:The parameters in BM and LPM models can be estimated by measuring the points in time at which the first N failures occur and translating these points into pairs of execution time and mean failures. Techniques such as Maximum Likelihood and Least Squares can be used for this purpose.
Q416.
What is the importance of early testing activities in software development?

a.

They are the most expensive testing activities.

b.

They are less effective than other testing activities.

c.

They provide opportunities to prevent errors from being made in the first place.

d.

They are not considered as important as other testing activities.

Discuss
Answer: (c).They provide opportunities to prevent errors from being made in the first place. Explanation:Early testing activities provide opportunities to prevent errors from being made in the first place.
Q417.
What are the most commonly used manual test techniques in software development?

a.

Structural and functional techniques

b.

Coverage-based testing and fault-based testing

c.

Inspections and error-based testing

d.

Test-driven development

Discuss
Answer: (a).Structural and functional techniques Explanation:In practice, the various manual test techniques seem to be used most often. They turn out to be at least as successful as the various structural and functional techniques.
Q418.
What is the role of personnel in software fault detection and removal?

a.

They are not important.

b.

They have no role in software fault detection and removal.

c.

A major element in software fault detection and removal.

d.

Only some personnel are good at finding and removing faults.

Discuss
Answer: (d).Only some personnel are good at finding and removing faults. Explanation:Next to the test techniques used, a major element in software fault detection and removal is the choice of personnel -- some people are significantly better at finding and removing faults than others.
Q419.
What is the primary focus of error-based testing?

a.

Testing error-prone points

b.

Detecting faults

c.

Specifying testing requirements

d.

Measuring the adequacy of a test set

Discuss
Answer: (a).Testing error-prone points Explanation:Error-based testing, which focuses on testing error-prone points, such as 0, 1, or the upper bound of an array.
Q420.
What is the purpose of test adequacy criteria in software development?

a.

To determine the cost-effectiveness of testing activities

b.

To measure the adequacy of a test set

c.

To focus on detecting faults

d.

To determine the coverage of the product to be tested

Discuss
Answer: (b).To measure the adequacy of a test set Explanation:Since exhaustive testing is generally not feasible, we have to select an adequate set of test cases. Test techniques can be classified according to the criterion used to measure the adequacy of this a test set.
Page 42 of 43

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