11) Explain what is the configuration elements?
A configuration element works parallel with a Sampler. To set up defaults and variables for later use by samplers configuration elements can be used. At the start of the scope, these elements are processed before any samplers in the same scope.
16) Explain how you can perform spike testing in JMeter?
By synchronizing, timer JMeter spike Testing can be achieved. Synchronizing timer blocks thread until a specific amount of threads has been blocked and then release them all together thus creating large instantaneous load.
Q What are Samplers & Thread Groups?
Samplers – Sampler generates one or more sample results. These sample results have many attributes like elapsed time, data size, etc. It allows JMeter to send specific types of requests to the server, through samplers, thread group decides which type of request it need to make. Some of the useful samplers are HTTP request, FTP request, JDBC request etc.
Thread Groups – JMeter is the beginning part of thread group elements. It is an important element of JMeter, where you can set number of users and time to load all the users given in the thread group.
20) What do you know about the Pre-processors in JMeter?
Before the sample requests are accomplished, Pre-processors are executed. Basically, these are nothing but the test plan elements that are helpful in ensuring reliability. Some of the widely used Pre-processors in the JMeter are:
Most Common JMeter FAQs
Yes, it is possible to run the JMeter in GUI. For this, a simple command is used and i.e.
:jmeter -n -ttest.jmx -l test.jtl
It works very simply. There is nothing much you need to do. Actually, it simply acts as a pool of users that often sends their requests to the server. Collecting all the responses from the server is the responsibility of the JMeter. These responses are then considered for analyzing the performance of the apps.
25) What are the main parts of a Thread Group?
The main parts of Thread Group as mentioned below
14) Explain what is Assertion in JMeter? What are the types of assertion?
Assertion helps to verify that your server under test returns the expected results
Some commonly used Assertion in JMeter are
Q What are Pre-processor & Post-processor Elements?
Pre-processor – A Pre-Processor is something that will happen before a sampler executes. They are often used to modify the settings of a Sample Request just before it runs.
Post-processor – A Post-Processor executes after a sampler finishes its execution. This element is most often used to process the response data.
Q1 How to reduce the resource requirement in JMeter?
To reduce the resource requirements in JMeter: