Testing /QA Interview Questions And Answers

1) Software testing:  Software testing is a methodology to find bugs in the software

2) Software Development Life Cycle( SDLC):

3) Software Testing life Cycle (STLC):  Click Her For Detail

4) Positive test case: - Test to check whether the system do what it is suppose to do.ie, checking for valid values only.

5) Negative Test Case: - Test to check whether the system will do what it is not supposed to do.ie, checking for invalid values.

6) Verification: It is a set of activity which confirms that the software is created accordance to the specification

7) Validation: Is a set of activity which confirms software is created is linked to user requirement or not

8) Retesting: Failed test case are executed to ensure that defect is really fixed

9) Regression: all passed test cases are executed on related module to verify that there is no injection of new defect to change in one of the module

10) Static: Reviewing artifacts rather than executing code

11) Dynamic: Testing Perform by executing code by giving i/p and verify o/p

12) Smoke: Is a simple test condition to ensure that the software is working properly at gross level so that further testing is done

13) Sanity: It perform to verify whether the application function according to specification or not

14) Defect: Defect indicate difference between expected and actual behavior

15) Defect Life cycle Or Bug Life Cycle: Click Here For More Details

16) White Box: It is done by developer. This require knowledge of internal structure and code of that application

17) Type of white box: 1) Statement 2) Decision3) Condition 4) path 5) loop

18) Black box: This is done by tester it mainly focus on functional requirement. By providing set of I/P and observe output.

19) Black box type: 1) BVA 2)    Equivalence class partitioning               3) state transition

 20) Alpha: It is done at developer side under controlled environment. Here developer is present

21) Beta: It is conducted at one or more customer site in live environment by end user .here developer is not present

22) Agile testing: It is testing methodology goes hand in hand to an agile software development model. Here release are quicker (within 2-3 week) and incremental are iterative in nature

23) Development Model:

1) Waterfall: It is sequential model which process through Requirement-> Design->Coding->Testing

2) Spiral: Divided into 4 phase 1) Plan2) Design3) Prototype4) test .In this model software in series of incremental realized. As we process through iteration more complete versioned is engineered product are visible. It is useful when user/developer are not cleared about the solution to developed and needs evaluator approach 

3) Agile: Here release as frequently as every week rather than month and continuous changes in requirement and welcome to be integrated

24) V-Model:
         It is extension of water fall model .here both the aspect  quality control and quality assurance are covered. Indicates that testing exits in every phase of SDLC life cycle
 

25) Test Case: test case is a set of input and output .here we pass the set of input and observe the output and system behavior

26) Test Scenario: Test scenario is a high level definition .here one can write one or more test cases

Example login

27) Test plan: Defines purpose, scope, approach, resource, responsibility of testing activities

Steps: Test Id, Intro, Scope and limitation, Test Objective, Assumption, Risk analysis, feature to be tested/Not to be, Roles and Responsibility, schedule, Test environment