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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 40 of 43

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Q391.
What is the difference between bottom-up testing and top-down testing?

a.

Bottom-up testing is a method where low-level components are tested first and top-down testing is a method where top-level components are tested first

b.

Bottom-up testing is a method where top-level components are tested first and top-down testing is a method where low-level components are tested first

c.

Both methods test the system as a whole

d.

Both methods test the individual components

Discuss
Answer: (a).Bottom-up testing is a method where low-level components are tested first and top-down testing is a method where top-level components are tested first Explanation:Bottom-up testing is a method where low-level components are tested first and integrated with components at the next higher level. On the other hand, top-down testing is a method where the top-level components are tested first and are gradually integrated with lower-level components.
Q392.
What are some of the applications of software reliability data?

a.

Planning maintenance effort

b.

Making predictions

c.

Meeting contractual obligations

d.

All of the above

Discuss
Answer: (d).All of the above Explanation:Software reliability data can be used in various ways, including planning maintenance effort, making predictions, and meeting contractual obligations.
Q393.
What is one of the major problems with testing software systems?

a.

Deciding when to start

b.

Deciding when to stop

c.

Collecting reliability information

d.

Predicting reliability level

Discuss
Answer: (b).Deciding when to stop Explanation:One of the major problems with testing software systems is deciding when to stop.
Q394.
What is the starting point for the statistical models of software reliability?

a.

Known probability distribution for expected failures

b.

Unknown probability distribution for expected failures

c.

Predictions using the obtained probability distribution

d.

Points in time at which the first n failures occur

Discuss
Answer: (b).Unknown probability distribution for expected failures Explanation:The starting point for the statistical models of software reliability is an unknown probability distribution for expected failures, and the distribution is determined by measuring the points in time at which the first n failures occur.
Q395.
What is the difference between faults and failures in software systems?

a.

Faults are dynamic while failures are static.

b.

Faults are more important than failures.

c.

Failures are manifestations of faults.

d.

None of the above.

Discuss
Answer: (c).Failures are manifestations of faults. Explanation:The difference between faults and failures in software systems is that faults are static in nature, meaning they exist in the code even if the software is not being executed. On the other hand, failures are dynamic and occur when the output of the software does not meet the specification.
Q396.
What is the goal of most test techniques?

a.

To find faults in the software.

b.

To find failures in the software.

c.

To improve the reliability of the software.

d.

To decrease the complexity of the software.

Discuss
Answer: (b).To find failures in the software. Explanation:The goal of many test techniques is to find as many faults as possible, however what is observed are the manifestations of faults, which are called failures. The system fails if the output does not meet the specification.
Q397.
What does reliability mean in the context of the software testing?

a.

The expected number of faults in a program.

b.

The expected number of failures in a program.

c.

The probability that the program will not fail in a certain period of time.

d.

The number of weeks of system testing still needed to reach a certain reliability level.

Discuss
Answer: (c).The probability that the program will not fail in a certain period of time. Explanation:In the context of the software testing, reliability is defined as the probability that the program will not fail during a certain period of time.
Q398.
What is the definition of reliability in the context of software systems?

a.

The number of faults in a program

b.

The number of failures in a program

c.

The probability that a program will not fail during a certain period of time in a certain environment

d.

The probability that the program will not fail during a certain period of time

Discuss
Answer: (c).The probability that a program will not fail during a certain period of time in a certain environment Explanation:The definition of reliability in the context of software systems is the probability that a system will not fail during a certain period of time in a certain environment.
Q399.
What is the difference between execution time and calendar time in the context of software reliability?

a.

Execution time is the time spent by the machine actually executing the software while calendar time is the time spent by the user

b.

Calendar time is the time spent by the machine actually executing the software while execution time is the time spent by the user

c.

Execution time is the time spent by the user while calendar time is the time spent by the machine actually executing the software

d.

Calendar time is the time spent by the user while execution time is the time spent by the machine actually executing the software

Discuss
Answer: (a).Execution time is the time spent by the machine actually executing the software while calendar time is the time spent by the user Explanation:The difference between execution time and calendar time in the context of software reliability is that execution time is the time spent by the machine actually executing the software while calendar time is the time spent by the user.
Q400.
What are some factors that can affect the failure behavior of a program?

a.

Quality of the designers and complexity of the system

b.

Development techniques used and complexity of the input

c.

Quality of the designers and development techniques used

d.

All of the above

Discuss
Answer: (d).All of the above Explanation:Some factors that can affect the failure behavior of a program include the quality of the designers, the complexity of the system, and the development techniques used.
Page 40 of 43

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