Wednesday 11 January 2017

Software Interview Question and Answers

1. How much testing in enough?
 Ans: The answer based on the risk for your industry,contract and special requirements.

 2. What are semi-random test cases?
Ans: Semi-random test cases are nothing but when we perform random test cases and     do equivalence partitioning to those test cases, it removes redundant test cases,   thus giving us semi-random test cases. Software Testing Training in Chennai

3. What is black box testing? What are the different black box testing techniques?
Ans: Black box testing is the software testing method which is used to test the software      without knowing the internal structure of code or program. This testing is usually   done to check the functionality of an application. The different black box testing techniques are
                 1.    Equivalence Partitioning
                 2.    Boundary value analysis
                 3.    Cause effect graphing

  4. A number of critical bugs are fixed in software. All the bugs are in one module,   related to reports. The test manager decides to do regression testing only on the reports module.
Ans: Regression testing should be done on other modules as well because fixing one    module may affect other modules

5. What is a V-Model?
Ans: A software development model that illustrates how testing activities integrate with    software development phases

6. What is test coverage?
Ans: Test coverage measures in some specific way the amount of testing performed by a     set of tests (derived in some other way, e.g. using specification-based techniques).       Wherever we can count things and can tell whether or not each of those things has      been tested by some test, then we can measure coverage.

7. What is DRE?
Ans: To measure test effectiveness a powerful metric is used to measure test effectiveness known as DRE (Defect Removal Efficiency) from this metric we would      know how many bugs we have found from the set of test cases. 

 8. What are Test comparators?
 Ans: Is it really a test if you put some inputs into some software, but never look to see         whether the software produces the correct result? The essence of testing is to     check whether the software produces the correct result, and to do that, we must compare what the software produces to what it should produce. A test comparator helps to automate aspects of that comparison.

9. What is traceability matrix?
Ans: The relationship between test cases and requirements is shown with the help of a document. This document is known as traceability matrix.

10. What is mutation testing?
 Ans: Mutation testing is a technique to identify if a set of test data or test case is useful    by intentionally introducing various code changes (bugs) and retesting with original  test data/ cases to determine if the bugs are detected.

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