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Quick quiz to review some of the key points of Chapter 1 for CTFL - ISTQB.

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Chapter 1 - Quick Quiz - Principles of testing

Question 1 of 12

1

A tester is working on a project that is still in development stage, he started testing a demo version of the payment method using a fake credit card for testing.

The fake credit card information is:

Number: 4532022596340037

CVV: 123

While he was testing the payment cycle, he entered the credit card number and wrote a wrong CVV which is 124. An error occurred saying that the CVV is not correct. The tester created a defect report for this error and assigned this report to the developer.

The error that the tester made is:

Select one of the following:

  • False positive

  • False negative

Explanation

Question 2 of 12

1

A Developer created an API for the dynamic content of the home page of a website, inside the code he missed a command which affected the page performance in a bad way.

When the Tester started to test the home page manually, he wasn't concentrating with the device screen, so he didn’t notice the low performance of the page.

This error is:

Select one of the following:

  • False positive

  • False negative

Explanation

Question 3 of 12

1

From your comprehension of Root cause analysis, choose the correct answer:

Select one of the following:

  • Root cause analysis can be applied in software environment only

  • Root cause analysis can be applied in all life cycle steps and can prevent a significant number of future defects from being introduced.

Explanation

Question 4 of 12

1

Choose from the following situations the correct answer that can describe ‘’Root cause analysis‘’:

Select one of the following:

  • A developer is adding an equation inside the code. The equation is used to calculate the discount on the course price, it is based on wrong information inside the acceptance criteria of a User Story. (Root cause: Product Owner)

  • A boy who is driving his father's car and there is no gas inside it. (Root cause: the boy)

Explanation

Question 5 of 12

1

Which one of the statements below describes a failure discovered during testing or in production?

Select one of the following:

  • The wrong version of one source code file was included in the build

  • The product crashed when the user selected an option in a dialog box

Explanation

Question 6 of 12

1

Which of the following is the correct statement?

Select one of the following:

  • An error causes a failure which results in a defect

  • An error causes a defect which is observed as a failure

  • An defect causes a failure which results in an error

  • A failure is observed as an error and the root cause is the defect

Explanation

Question 7 of 12

1

Which principle of testing means that testing can prove that we have defects in our software.

Select one of the following:

  • Testing shows the presence of defects

  • Testing is context dependent

Explanation

Question 8 of 12

1

Which principle of testing means that a small number of modules usually contains most of defects discovered during pre-release testing:

Select one of the following:

  • Defects cluster together

  • Absence-of-errors is a fallacy

Explanation

Question 9 of 12

1

Which principle of testing applies in this situation:
Dividing testing effort between three projects on scope, quality, risks and budget

Select one of the following:

  • Early testing saves time and money

  • Testing is context dependent

Explanation

Question 10 of 12

1

By studying the principle "Absence of error is a fallacy", we understand that:

1-It’s important to expect that finding and fixing a large number of defects will ensure the success of the system

2-It’s a fallacy to expect that just finding and fix a large number of defects will ensure the success of the system

3-The reason of projects failure might be the idea of the project, delivering low quality, misunderstanding the requirements, or lack of experience in the field of the project

Select one of the following:

  • 1 is correct, 2 & 3 are wrong

  • 2 is correct, 1 & 3 are wrong

  • 3 is correct, 2 & 1 are wrong

  • 2 & 3 are correct, 1 is wrong

Explanation

Question 11 of 12

1

Which principle of testing applies in this situation:
A tester wrote some test cases to cover the registration test scenarios for a website. He executed those test cases more than one time to find defects.

Select one of the following:

  • Exhaustive testing is impossible

  • Beware of the pesticide paradox

Explanation

Question 12 of 12

1

Which principle of testing means that we need to begin static and dynamic test activities as early as possible to find defects and prevent them.

Select one of the following:

  • Exhaustive testing is impossible

  • Early testing saves time and money

Explanation

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