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1447

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Computer Science

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Feb 20, 2024

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Chapter 1 Q. 1: Failure is _________ A. Incorrect program behavior due to a fault in the program B. Bug found before product Release C. Bug found after product Release D. Bug found during Design phase Ans: A Q. 2: Which of the following can be the root cause of a bug in a software product? (I) The project had incomplete procedures for configuration management. (II) The time schedule to develop a certain component was cut. (III) the specification was unclear (IV) Use of the code standard was not followed up (V) The testers were not certified A. (I) and (II) are correct B. (I) through (IV) are correct C. (III) through (V) are correct D. (I), (II) and (IV) are correct Ans: B Q. 3: Which of the following is NOT a reasonable test objective? A. To find faults in the software B. To give confidence in the software C. To find performance problems D. To prove that the software has no faults Ans: B
Q. 4: Which of the following is true A. Testing is the same as quality assurance B. Testing is a part of quality assurance C. Testing is not a part of quality assurance D. Testing is the same as debugging Ans: B Q. 5: Which of the following sentences describes one of these basic principles? A. Complete testing of software is attainable if you have enough resources and test tools B. With automated testing, you can make statements with more confidence about the quality of a product than with manual testing C. For a software system, it is not possible, under normal conditions, to test all input and output combinations. D. A goal of testing is to show that the software is defect-free Ans: C Q. 6: A test team consistently finds between 90% and 95% of the defects present in the system under test. While the test manager understands that this is a good defect-detection percentage for her test team and industry, senior management and executives remain disappointed in the test group, saying that the test team misses too many bugs. Given that the users are generally happy with the system and that the failures which have occurred have generally been low impact, which of the following testing principles is most likely to help the test manager explain to these managers and executives why some defects are likely to be missed? A. Exhaustive testing is impossible B. Absence-of-errors fallacy C. Defect clustering D. Pesticide paradox
Ans: A Answer the following questions: Why testing is necessary? Ans: Because quality of software is totally dependent on testing. What is the difference between testing and debugging? Ans: Testing is a process to find error and bugs however debugging is process to correct the error and bugs during test. What are the testing principles? Explain. Ans: 1. testing show presence of defect 2.Absences of error 3.Defects clustering 4.Exhausting testing is impossible 5.Early testing 6.Testing is context dependent 7.Pesticide paradox What is the difference between verification and validation? Ans: Verification: Verification is the process of verifying that a software accomplishes its goal without any bugs. Validation: The process of evaluating software during or at the end of the development process to determine whether it satisfies specified requirements What are the testing objectives? Ans:1.Verify requirement 2. validate test object 3. build confidence
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4.prevent defects 5.decrease risk What are the responsibilities of a manual tester? Ans: 1. Analyzing the requirement from the client. 2.defect tracking 3. Execute test case 4. Follow instructions What is the difference between errors, defect and failure? Ans: Mistake in coding is called error however error found by tester is knowns as defect moreover Defect accepted by development team is called bugs.