JMeter - 1 | Interviews Questions with Answers | 2022

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JMeter - 1 | Interviews Questions with Answers | 2022
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What is performance Testing?
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Performance testing is non-functional testing type. It is performed to check the efficiency of the application specially when application is under load.

Types of performance Testing?
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Performance testing has following types:

Load testing

Stress testing

Spike testing

Endurance testing

Volume testing

Scalability testing

Difference between Load & Stress testing ?
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Load testing helps that application will behave under the expected load on the application whereas stress testing helps in find the stress point or the maximum capacity of application while handling a load. It is done by gradually increasing the load on the application.

What is Spike Testing?
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Spike testing is a type of performance testing in which an application receives a sudden and extreme increase in load in intervals and it is used to find how application will behave in under sudden load spikes.

What is Endurance test?
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Endurance test is a type of non-functional testing which is done to check if the software can sustain under a huge expected load continued over a long period of time.

What is Volume testing?
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Volume Testing is a type of non-functional testing. This testing is done to check the data volume handled by the application. In other words volume of data handled and processed by the Database.

What is Scalability testing ?
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Scalability Testing is a type of non-functional testing in which the performance of a software application is tested in terms of its capability to scale up or scale down based on number of requests.

What is JMeter ?
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The Apache JMeter™ application is open source software, a 100% pure Java application designed to load test functional behavior and measure performance.

How does JMeter work?
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JMeter will generate group of virtual users sending requests to a target server. It collects response from target server and other statistics which show the performance of the application or server via graphs or tables.

What are samplers in JMeter?
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Samplers perform the actual work of JMeter. Each sampler (except Flow Control Action) generates one or more sample results. The sample results have various attributes (success/fail, elapsed time, data size etc.) and can be viewed in the various listeners.

Can you name some common Samplers in JMeter?
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FTP Request

HTTP Request

JDBC Request

Java Request

BeanShell Sampler

JUnit Request

SMTP Sampler

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