Hi Techies,

Let's start posting Testing and Testing tools based Interview questions and answers in this thread.

Thanks

__________________
Prasanna Vignesh
MCPD | Web Developer

Error

Error is the problem that can be raised before a product is delivered to the end User.


Fault

Fault is the problem that can be raised after a product is delivered to the end user.


Error is corrected but the fault can not be corrected.Once a fault is detected the product should be re-produced.

HOW TO TEST A WEBSITE BY MANUAL TESTING?

Web Testing

During testing the websites the following scenarios should be considered.
Functionality
Performance
Usability
Server side interface
Client side compatibility
Security

Functionality:
In testing the functionality of the web sites the following should be tested.
Links
Internal links
External links
Mail links
Broken links
Forms
Field validation
Functional chart
Error message for wrong input
Optional and mandatory fields
Database
Testing will be done on the database integrity.
Cookies
Testing will be done on the client system side, on the temporary internet files.

Performance:
Performance testing can be applied to understand the web site’s scalability, or to benchmark the performance in the environment of third party products such as servers and middle ware for potential purchase.

Connection speed:
Tested over various Networks like Dial up, ISDN etc

Load
What is the no. of users per time?
Check for peak loads & how system behaves.
Large amount of data accessed by user.

Stress
Continuous load
Performance of memory, cpu, file handling etc.

Usability :
Usability testing is the process by which the human-computer interaction characteristics of a system are measured, and weaknesses are identified for correction. Usability can be defined as the degree to which a given piece of software assists the person sitting at the keyboard to accomplish a task, as opposed to becoming an additional impediment to such accomplishment. The broad goal of usable systems is often assessed using several

Criteria:
Ease of learning
Navigation
Subjective user satisfaction
General appearance

Server side interface:
In web testing the server side interface should be tested.
This is done by Verify that communication is done properly.
Compatibility of server with software, hardware, network and database should be tested.
The client side compatibility is also tested in various platforms, using various browsers etc.

Security:
The primary reason for testing the security of an web is to identify potential vulnerabilities and subsequently repair them.
The following types of testing are described in this section:
Network Scanning
Vulnerability Scanning
Password Cracking
Log Review
Integrity Checkers
Virus Detection

Performance Testing
Performance testing is a rigorous usability evaluation of a working system under realistic conditions to identify usability problems and to compare measures such as success
rate, task time and user satisfaction with requirements. The goal of performance testing is not to find bugs, but to eliminate bottlenecks and establish a baseline for future regression testing.

To conduct performance testing is to engage in a carefully controlled process of measurement and analysis. Ideally, the software under test is already stable enough so that this process can proceed smoothly. A clearly defined set of expectations is essential for meaningful performance testing.
For example, for a Web application, you need to know at least two things:
expected load in terms of concurrent users or HTTP connections
acceptable response time

Load testing:
Load testing is usually defined as the process of exercising the system under test by feeding it the largest tasks it can operate with. Load testing is sometimes called volume testing, or longevity/endurance testing
Examples of volume testing:
testing a word processor by editing a very large document
testing a printer by sending it a very large job
testing a mail server with thousands of users mailboxes
Examples of longevity/endurance testing:
testing a client-server application by running the client in a loop against the server over an extended period of time

Goals of load testing:
Expose bugs that do not surface in cursory testing, such as memory management bugs, memory leaks, buffer overflows, etc. Ensure that the application meets the performance baseline established during Performance testing. This is done by running regression tests against the application at a specified maximum load.
Although performance testing and load testing can seen similar, their goals are different. On one hand, performance testing uses load testing techniques and tools for measurement and benchmarking purposes and uses various load levels whereas load testing operates at a predefined load level, the highest load that the system can accept while still functioning properly.

Stress testing:
Stress testing is a form of testing that is used to determine the stability of a given system or entity. This is designed to test the software with abnormal situations. Stress testing attempts to find the limits at which the system will fail through abnormal quantity or frequency of inputs.
Stress testing tries to break the system under test by overwhelming its resources or by taking resources away from it (in which case it is sometimes called negative testing).
The main purpose behind this madness is to make sure that the system fails and recovers gracefully — this quality is known as recoverability.
Stress testing does not break the system but instead it allows observing how the system reacts to failure. Stress testing observes for the following.
Does it save its state or does it crash suddenly?
Does it just hang and freeze or does it fail gracefully?
Is it able to recover from the last good state on restart?

Etc.

Compatability Testing
A Testing to ensure compatibility of an application or Web site with different browsers, OS and hardware platforms. Different versions, configurations, display resolutions, and Internet connect speeds all can impact the behavior of the product and introduce costly and embarrassing bugs. We test for compatibility using real test environments. That is testing how will the system performs in the particular software, hardware or network environment. Compatibility testing can be performed manually or can be driven by an automated functional or reg The purpose of compatibility testing is to reveal issues related to the product& interaction session test suite.with other software as well as hardware. The product compatibility is evaluated by first identifying the hardware/software/browser components that the product is designed to support. Then a hardware/software/browser matrix is designed that indicates the configurations on which the product will be tested. Then, with input from the client, a testing script is designed that will be sufficient to evaluate compatibility between the product and the hardware/software/browser matrix. Finally, the script is executed against the matrix,and any anomalies are investigated to determine exactly where the incompatibility lies.
Some typical compatibility tests include testing your application:
On various client hardware configurations
Using different memory sizes and hard drive space
On various Operating Systems
In different network environments
With different printers and peripherals (i.e. zip drives, USBs, etc.)

Thanks
Sathian.K

what is the difference between web based application and client server application as a testers point of view?

According to Tester’s Point of view——
1) Web Base Application (WBA)is a 3 tier application ;Browser,Back end and Server.
Client server Application(CSA) is a 2 tier Application ;Front End ,Back end .
2) In the WBA tester test for the Script error like java script error VB script error etc, that shown at the page. In the CSA tester does not test for any script error.
3) Because in the WBA once changes perform reflect at every machine so tester has less work for test. Whereas in the CSA every time application need to be instal hence ,it maybe possible that some machine has some problem for that Hardware testing as well as software testing is needed.

Thanks
Sathian.K

What are the diff ways to check a date field in a website?

here are different ways like :–
1) you can check the field width for minimum and maximum.
2) If that field only take the Numeric Value then check it’ll only take Numeric no other type.
3) If it takes the date or time then check for other.
4) Same way like Numeric you can check it for the Character,Alpha Numeric aand all.
5) And the most Important if you click and hit the enter key then some time pag e may give the error of javascript, that is the big fault on the page .
6) Check the field for the Null value ..

here are different ways like :–
1) you can check the field width for minimum and maximum.
2) If that field only take the Numeric Value then check it’ll only take Numeric no other type.
3) If it takes the date or time then check for other.
4) Same way like Numeric you can check it for the Character,Alpha Numeric aand all.
5) And the most Important if you click and hit the enter key then some time pag e may give the error of javascript, that is the big fault on the page .
6) Check the field for the Null value ..

Thanks
Sathian.K

Is automated testing better than manual testing. If so, why?

Automated testing and manual testing have advantages as well as disadvantages
Advantages: It increase the efficiency of testing process speed in process
reliable
Flexible
disadvantage’s
Tools should have compatibility with our development or deployment tools needs lot of time initially If the requirements are changing continuously Automation is not suitable
Manual: If the requirements are changing continuously Manual is suitable Once the build is stable with manual testing then only we go 4 automation
Disadvantages:
It needs lot of time
We can not do some type of testing manually
E.g Performances

Thanks
Sathian.K

The main difference between Winrunner, Loadrunner and Test Director is

1. a)Winrunner is a Functional testing tool,
b)Loadrunner is Performance tool and
c)Test director is Management tool.

a) Winrunner: 1.you can record the script automatically or manually you can write scripts.
2.This is mainly use for Regression testing.

b) Loadrunner:

1. This tool is mainly used for Performance testing.
2. we can also use this tool for Load testing and Stress Testing

c) Test director:
This is a Management tool.
Test director tool contains:

1. Test Plan
2. Test Cases
3. Time estimation
4. Schedule documents
5. Bug Lists

ThankQ
KiruthikaSambandam

suppose i give valid user id and password to open an web base application on qtp.how qtp will know itis a valid user id and password

QTP does not know or need not know whether itis valid user
name or valid password.if u write the below written script
to open ur account it will just pass the values wat u have
given in the script and clicks on sign in (or)on submit
button .if ur username is valid u will automatically login
to ur account,if its not then u will not login to ur
account.here qtp just passes wat ever the values u have
given in the script thats it ,it cant know whether itis
valid user name or invalid username

ur script will be like this to login:
browser(" yahooo").page("yahoo").webedit("signin").click

ThankQ
KiruthikaSambandam

How many recording methods in WinRunner 8.0

i. Context Sensitive recording records the operations you perform on your application by identifying Graphical User Interface (GUI) objects.
ii Analog recording records keyboard input, mouse clicks, and the precise x- and y-coordinates traveled by the mouse pointer across the screen.

Thanks
KiruthikaSambandam

Differentiate between QA and QC?
QA:It is process oriented
it envolve in entire process of software developement.
Preventin oriented.
QC:
It is product oriented.
work to examin the quality of product.
Dedection orientd.

__________________
V.Vadivelan

There never a wrong time to do the right thing.

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.

__________________
V.Vadivelan

There never a wrong time to do the right thing.

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 strategy,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,resour ces,schedule ,environmental requirements,risks & contingencies,change management procedures,plan approvals,etc all these things help a test manager understand the testing he should do & what he should follow for testing that particular project.

__________________
V.Vadivelan

There never a wrong time to do the right thing.

When the relationship 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

__________________
V.Vadivelan

There never a wrong time to do the right thing.

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.

__________________
V.Vadivelan

There never a wrong time to do the right thing.

If a bug has high severity then usually that is treated as high priority,then why do priority given by test engineers/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

__________________
V.Vadivelan

There never a wrong time to do the right thing.

what is the difference between functional testing and regression testing

functional testing is a testing process where we test the functionality/behavior 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 behavior of the application of the unchanged areas when there is a change in the build.i.e we check whether the changed requirement has altered the behavior of the unchanged areas.the impacted area may be the whole of the application or
some part of the application...

__________________
V.Vadivelan

There never a wrong time to do the right thing.

Do u know abt integration testing,how do u integrate difference 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 balance it shows the 100$as the available balance.but in database it shows the 120$. main thing is "integration done by the developers and integration testing done by the testers"

__________________
V.Vadivelan

There never a wrong time to do the right thing.

Do u know abt configuration management tool,what is the purpose of maintaining all the documents in configuration manage ment 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.Similarly 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.

__________________
V.Vadivelan

There never a wrong time to do the right thing.