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For a mandatory input field 'ZIP code' the following rules are given: 1 - The valid ZIP code format is 5 numeric digits 2 - The code has to exist in the pest office's official ZIP code list Using equivalence classes partitioning, how many test cases are required to test this field?
Your company is developing a system with complex business rules and many branches in the structure of its code components. You need to choose one black box technique and one white box technique for test case design. Which one of the following offers the BEST choice?
Which of the following is NOT an objective of testing?
Consider the following Pseudo code: How many minimum lea cases are required to cover 100% Statement coverage and Decision coverage?
Which statement correctly describes debugging? [K2]
Which of the following is a valid objective of testing? [K1]
Which of the following CORRECTLY matches a tester's ability to communicate about defects, test results, and other test Information well?
Load testing tool checks for:
The following test cases for a Library Management System are available to test changes made to the functions and data structures associated with borrowers 1. Add a new borrower to the system 2. Update a borrower's data 3. Remove a borrower from the system 4. Loan a book to a borrower 5. Return a book from a borrower 6. Reserve a book for a borrower 7. Send 'reservation ready' message to a borrower Which of the following test sequences represents a possible use case? (a test sequence always start with test #1)
Which of the following statements is true?

Question 151 - CTFL-2018 discussion

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Which of the following options BEST explain the pesticide paradox principle of testing?

A.
If we do not regularly review and revise our tests, we'll stop finding defects
Answers
A.
If we do not regularly review and revise our tests, we'll stop finding defects
B.
Repeatedly running a set of tests will ensure that a system is defect free
Answers
B.
Repeatedly running a set of tests will ensure that a system is defect free
C.
Defects are, paradoxically, often contained in a small number of modules
Answers
C.
Defects are, paradoxically, often contained in a small number of modules
D.
Testing, like spraying pesticide, is an effective bug / defect removal activity
Answers
D.
Testing, like spraying pesticide, is an effective bug / defect removal activity
Suggested answer: A

Explanation:

The pesticide paradox principle of testing states that if we do not regularly review and revise our tests, we'll stop finding defects, because the same tests will no longer be effective at detecting new or different defects in the software12. The other options do not explain the pesticide paradox principle of testing.Option B is false, because repeatedly running a set of tests will not ensure that a system is defect free, but rather that it meets the same quality criteria as before12.Option C is related to the defect clustering principle of testing, which states that defects are often contained in a small number of modules12.Option D is a metaphor that compares testing to spraying pesticide, but it does not explain the paradoxical effect of using the same tests over and over again

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asked 18/09/2024
Madhankumar Rathinakumar
35 questions
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