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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 57 - CTFL-2018 discussion

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What does the term Pesticide paradox' refer to?

A.
The phenomena where a piece of code that has a lot of bugs is likely to have more hidden, yet unfound
Answers
A.
The phenomena where a piece of code that has a lot of bugs is likely to have more hidden, yet unfound
B.
The decreasing efficiency of debugging when done in code that has many bugs
Answers
B.
The decreasing efficiency of debugging when done in code that has many bugs
C.
Reduced effectiveness of test cases that are repeated and focused on the same scenarios
Answers
C.
Reduced effectiveness of test cases that are repeated and focused on the same scenarios
D.
The redundancy of testing the same objects in both black and white box techniques
Answers
D.
The redundancy of testing the same objects in both black and white box techniques
Suggested answer: C

Explanation:

The term 'Pesticide paradox' refers to the phenomenon where the effectiveness of test cases that are repeated and focused on the same scenarios decreases over time because they tend to find the same defects or no defects at all. This is because the system under test becomes more resistant or immune to the existing test cases, just like pests become more resistant or immune to pesticides over time. To overcome the pesticide paradox, test cases should be regularly reviewed and updated to cover new or changed requirements, scenarios, risks, or defects. Test cases should also be designed to cover different aspects and perspectives of the system under test, such as functionality, usability, performance, security, etc. You can find more information about the pesticide paradox inA Study Guide to the ISTQB Foundation Level 2018 Syllabus, Chapter 4, Section 4.11.

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asked 18/09/2024
Julius Nammeh
28 questions
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