Check Some Important Load Runner Interview Questions

in Load

Load Runner Testing is one of the critical phases of software testing. As its name suggest, it is basically done to ascertain the loading time of a software or application, when multiple users are accessing it simultaneously. Preparing for the load runner interview, you need to be assure of some important loadrunner interview questions.

What is load runner testing and why it is done? 

Load testing is a test process executed to understand the loading capabilities of a particular application or software. It is done to check the application’s compatibility and functionality when multiple users are accessing it at a time.

In loadrunner interview questions which factor of Load Runner you will use for executing Back script in multiple user modes?

Controller component is an essential factor in determining the scripts playback during the multiple user modes. This is done with the help of scenario. A scenario is created to assemble number of Vusers in a group and execute them.

Explain briefly about the use of automatic correlation options?

These options can be set either in the correlation tab or in the recording options. This is done to send some online massages or offline massages as and when required with the use of correlation script. This is done with the help of output window and correlation scanning for picking up the query values that a tester wants to correlate. If a specific value to be correlated is known then it is to specify what value to be created.

How you will stop the execution of the script?

This can be done by using the Lr_abort function during the testing. This function executes the instructions to the Vuser to stop the action immediately. This function is used when the tester needs to manually terminate the running script during the testing because of any error massage. By executing this command the system will immediately stop the execution and generate a massage “Stopped”.

 

How you distinguish between throughput and Response time? 

 

The throughout graph displays the data figures transmit by the second server to the Vusers in bytes. When this response time is compared it is ascertain that throughput rate is decreased as the decrease in the response time.  It may also lead peak throughput and response time occur at their highest level at the same time.

 

How Load test is planned and what are its important criteria’s?

It is planned based on the number of Vusers. Also the machines and system that is to be used for the respective load test also need to be planned. There are two critical factors based on which load test depends, they are transaction profile and distribution diagram. On one hand transaction profile provides the data about transaction name and some critical levels based on the scenario. On the other hand distribution diagram provides data related with the number of users for the particular transaction profile.

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David Vilson has 7 articles online

For regression testing preparations, you need to be strong in your basics and must have excellent technical skills. The preparation levels either must be very broad and deep to know what is testing.

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Check Some Important Load Runner Interview Questions

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This article was published on 2012/05/03