May 23, 2012

Interview Question and Answers


1.    Differentiate between QA and QC?
QA:
It is process oriented
It involve in entire process of software developement.
Prevention oriented.
QC:
It is product oriented.
Work to examine the quality of product.
Deduction oriented.
2.    What is a bug?
A computer bug is an error, flaw, mistake, failure, or fault in a computer program that prevents it from working correctly or produces an incorrect result.
3.    What is a test case?
Test case is set of input values, execution preconditions, expected results and execution Post conditions, developed for a particular objective or test conditons, such as to exercise a paticular program path or to verify compliance with a specific requirement.
4.    What is the purpose of test plan in your project?
Test plan document is prepared by the test lead,it contains the contents like introduction,objectives,test stratergy,scope,test items,program modules user
procedures,features to be tested features not to tested approach,pass or fail criteria,testing process,test deliverables,testing,tasks,responsibilities,resources,schedu
i.e., environmental requirements, risks & contingencies, change management procedures, plan approvals, etc., all these things help a test manager undersatnd the testing he should do & What he should follow for testing that particular project.
5.    When the relationships occur between tester and developer?
Developer is the one who sends the application to the tester by doing all the necessary code in the application and sends the marshal id to the tester.The tester is the one who gives all the input/output and checks whether he is getting reqd output or not.A developer is the one who works on inside interfacing where as the tester is the one who works on outside interfacing
6.    When testing will starts in a project?
The testing is not getting started after the coding.after release the build the testers perform the smoke test.smoke test is the first test which is done by the testing team.this is according to the testing team.but, before the releasing of a build the developers will perform the unit testing.
7.    If a bug has high severity then usually that is treated as high priority,then why do priority given by testengineers/project managers and severity given by testers?
High severity bugs affects the end users ....testers tests an application with the users point of view, hence it is given as high severity.High priority is given to the bugs which affects the production.Project managers assign a high priority based on production point of view.
8.    What is the difference between functional testing and regression testing?
Functional testing is a testing process where we test the functionality/behaviour of each functional component of the application...i.e.minimize button,transfer button,links etc.i.e we check what is each component doing in that application...
Regression testing is the testing the behaviour of the application of the unchanged areas when there is a change in the build.i.e we chk whether the changed requirement has altered the behaviour of the unchanged areas.the impacted area may be the whole of the application or some part of the application...
9.    Do you know about integration testing, how do u integrate diff modules?
Integration testing means testing an application to verify the data flows between the module.for example, when you are testing a bank application ,in account balence it shows the
100$as the available balence.but in database it shows the 120$. Main thing is "integration done by the developers and integration testing done by the testers"
10. Do you know about configuration management tool, what is the purpose of maintaining all the documents in configuration management tool?
·         It is focused primarily on maintaining the file changes in the history.
·         Documents are subjected to change for ex: consider the Test case document.
·         Initially you draft the Test cases document and place it in Version control tool (Visual Source Safe for ex).Then you send it for Peer Review .They will provide some comments and that document will be saved in VSS again.Similary the document undergoes changes and all the changes history will be maintained in Version control.
·         It helps in referring to the previous version of a document.
·         Also one person can work on a document (by checking out) at a time.
·         Also it keeps track who has done the changes, time and date.
·         Generally all the Test Plan, Test cases, Automation design docs are placed in VSS.
·         Proper access rights needs to be given so that the documents dont get deleted or modified.
11. How you test database and explain the procedure?
Database Testing is purely done based on the requirements. You may generalize a few features but they won't be complete. In general we look at
·         Data Correctness (Defaults)
·         Data Storage/Retrieval
·         Database Connectivity (across multiple platforms)
·         Database Indexing
·         Data Integrity
·         Data Security
12. Suppose if you press a link in yahooshopping site in leads to some other company website? How to test if any problem in linking from one site to another site?
·         First i will check whether the mouse cusor is turning into hand icon or not?
·         I will check the link is highlingting when i place the curosr on the link or not?
·         The site is opening or not?
·         if the site is opening then i will check is it opening in another window or the same window that the link itself exitst(to check userfriendly ness of the link)
·         How fast that website is opening?
·         Is the correct site is opening according to the link?
·         All the items in the site are opeing or not?
·         All other sub links are opening or not?
13. What are the contents of FRS?
F → Function Behaviours
R → Requirements (Outputs) of the System, that is defined.
S → Specification (How, What, When, Where, and Way it behavior's.
FRS → Function Requirement Specification.
 This is a Document which contains the Functional behavior of the system or a feature. This document is also known as EBS External Behaviour Specification - Document. Or EFS (External Function Specification).
14. what is meant by Priority nad severity?
Priority means "Importance of the defect w.r.t cutomer requirement"
Severity means "Seriousness of the defect w.r.t functionality"
15. What is meant by Priority and severity?
Severity:  
·         This is assigned by the Test Engineer
·         This is to say how badly the devation that is occuring is affecting the other modules of the build or release.
Priority:
·         This is assigned by the Developer.
·         This is to say how soon the bug as to be fixed in the main code, so that it pass the basic requirement.
Eg. The code is to generate some values with some vaild input conditions. The priority will be assigned so based on the following conditions:
·         It is not accepting any value
·         It is accepting value but output is in non-defined format (say Unicode Characters).
A good example i used some unicode characters to generate a left defined arrow, it displayed correctly but after saving changes it gave some address value from the stack of this server. For more information mail me i will let you know.
16. Give me some example for high severity and low priority defect?
If suppose the title of the particular concern is not spelled corectly,it would give a negative impact.eg ICICC is spelled as a tittle for the project of the concern ICICI.then it is a high severity,low priority defect.
17. What is basis for testcase review?
The main basis for the test case review is
·         Testing techniques oriented review
·         Requirements oriented review
·         Defects oriented review.
18. What are the contents of SRS documents?
Software Requirements Specifications and Functional Requirements Specifications.
19. What is difference between the Web application testing and Client Server testing?
Testing the application in intranet (withoutbrowser) is an example for client -server.(The company firewalls for the server are not open to outside world. Outside people cannot access the application.)So there will be limited number of people using that application.
Testing an application in internet (using browser) is called webtesting. The application which is accessible by numerous numbers around the world (World Wide Web.)
So testing web application, apart from the above said two testings there are many other testings to be done depending on the type of web application we are testing.
If it is a secured application (like banking site- we go for security testing etc.)
If it is a ecommerce testing application we go for Usability etc., Testing.
20. Explain your web application archtechture?
Web application is tested in 3 phases
·         Web tier testing --> browser compatibility 
·         Middle tier testing --> functionality, security
·         Data base tier testing --> database integrity, contents
21. Suppose the product/application has to deliver to client at 5.00PM,At that time you or your team member caught a high severity defect at 3PM.(Remember defect is high severity)But the client is cannot wait for long time.You should deliver the product at 5.00Pm exactly.then what is the procedure you follow?
The bug is high severity only so we send the application to the client and find out the severity is preyority or not. if its preyority then we ask him to wait.
Here we found defects/bugs in the last minute of the deliveryor realese date
Then we have two options
·         Explain the situation to client and ask some more time to fix the bug.
·         If the client is not ready to give some time then analyze the impact of defect/bug and try to find    workarounds for the defect and mention these issues   in the release notes as known issues or known   limitations or known bugs.  Here the workaround means remeady process to be followed to overcome the defect effect.
·         Normally this known issues or known limitations(defects) will be fixed in next version or next release of the  software 
22. Give me examples for high priority and low severity defects?
Suppose in one banking application there is one module ATM Facility. In that ATM facility when ever we are dipositing/withdrawing money it is not showing any conformation message but actually at the back end it is happening properly with out any mistake means only missing of message. In this case as it is happenig properly so there is nothing wrong with the application but as end user is not getting any conformation message so he/she will be confuse for this. So we can consider this issue as HIGH Priority but LOW Severity defects..
23. Explain about Bug life cycle?
·         Tester->
·         Open defect->
·         Send to developer->
·         If accepted moves to step5 else sends the bug to tester gain fixed by developer ->
·         Regression testing->
·         No problem inbuilt and signoff ->
·         If problem in built reopen the issue send to step3
24. How can you report the defect using excel sheet?
To report the defect using excel sheet mention the following
  • The Feature that been effected.
  • Test Case ID (Which fail you can even mention any other which are dependency on this bug)
  • Actual Behavior
  • Expected Behavior as mentioned in Test Case or EFS or EBS or SRS  document with section
  • Your Test Setup used during Testing
  • Steps to Re-Produce the bug
  • Additional Info
  • Attach a Screen Shot if it is a GUI bug
  • Which other features it is blocking because of this bug that you are unable to execute the test cases.
How much time you took to execute that test case or follow that specific TC which leaded to bug
25. If you have executed 100 test cases ,every test case passed but apart from these testcase you found some defect for which testcase is not prepared,thwn how you can report the bug?
While reporting this bug into bugtracking tool you will generate the testcase imean put the steps to reproduce the bug.

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