CTFL_Syll2018 Exam Dumps - ISTQB Certified Tester Foundation Level (Syllabus 2018)

A circumstance where maintenance testing is required is A. Migration of software onto a new platform. Migration of software onto a new platform is a type of change that affects the delivered software product and requires maintenance testing to ensure that the software product still works correctly and consistently on the new platform. A new platform can be a different hardware, operating system, network, database, browser, etc., that supports or interacts with the software product. Migration of software onto a new platform can introduce compatibility issues, performance issues, security issues, etc., that need to be detected and resolved by maintenance testing. A detailed explanation of migration testing can be found in [A Study Guide to the ISTQB® Foundation Level 2018 Syllabus], page 82.

Independence from the production process is a characteristic that is most likely to promote effective software testing1. Independence from the production process means that the testers are not involved in the development or maintenance of the software product under test, and thus can provide an unbiased and objective view of its quality1. Independence from the production process can also help to avoid conflicts of interest, reduce confirmation bias, increase defect detection, and improve test coverage1. Therefore, independence from the production process is a characteristic that is most likely to promote effective software testing.

UAT stands for user acceptance testing, which is a type of testing that verifies that the software product meets the acceptance criteria and expectations of the end users or customers1. A UAT specification is a document that defines the scope, objectives, approach, and criteria for UAT1. Testers should be involved in reviewing a UAT specification at any time before UAT begins, as this can help to ensure that the UAT specification is clear, complete, consistent, testable, and aligned with the user requirements1. Testers can also provide feedback and suggestions to improve the UAT specification and avoid potential issues or conflicts during UAT execution1. Therefore, testers should be involved in reviewing a UAT specification at any time before UAT begins.

Testing can demonstrate that there are defects in the software, by finding and reporting them. Testing cannot demonstrate that there are no defects, because it is impossible to test all possible scenarios and inputs. Testing cannot demonstrate that the software is correct, because correctness is a subjective and relative concept that depends on the expectations and requirements of the stakeholders. Testing cannot demonstrate that there are no hidden defects in the software, because hidden defects are those that are not detected by testing or other quality assurance activities.

The testing effort required to test a software product depends on various factors, such as the size and complexity of the product, the quality of the requirements and design documents, the testability of the product, the test strategy and scope, the test environment and tools, the skills and experience of the testers, and the quality expectations and standards of the stakeholders1. Among these factors, the requirements for reliability and security in the product will most affect the testing effort required to test a software product1. Reliability and security are quality attributes that measure how well a software product performs its intended functions under specified conditions and protects itself from unauthorized access or harm1. Testing for reliability and security requires more rigorous and thorough testing techniques, such as reliability testing, security testing, penetration testing, stress testing, etc1. These techniques may require more time, resources, tools, and skills to perform effectively1. Therefore, the requirements for reliability and security in the product will most affect the testing effort required to test a software product.