Manual Testing Interview Question and Answer

       1.) What is the difference between Sanity and Smoke testing

       2) What is the difference between Load and Stress Testing?

1. What is the difference between Sanity and Smoke testing?

Sanity Testing: Sanity testing is also known as mini regression testing. Sanity testing is done when you get a release after your bug fixes and that bug has impact on other module as well then we perform sanity testing to make sure that other module is working fine.

Smoke Testing: Smoke testing is done in the beginning when you get the release for the first  time then we perform smoke testing to verify that is the system is ready to go into testing phase or in other words we can say that it is done to verify that if the build is ready for testing.

2. What is the difference between Load and Stress Testing?

Load Testing: Load testing is done to find out the response of the application under heavy load.

Goal:  Goal of load testing is to find out the response of the application under heavy loads.

Example: If your application can handle the load of 1000 user then, in load testing you will test that what will the response of your application when this load is increased. You can use different scenarios in that like observing the response when the load is static means all the user login at the same time, observe load when the load is increases. These are few scenarios whereas in actual we can use different scenarios for getting the response.

Stress Testing: Stress testing means observing the response of the application when the load is increased up to the limit when your application gets crashed.

Goal:  Goal of load testing is to find out how your system will behave when it will fail. The purpose of this testing is to make sure that even if your application gets crashed then also it should not compromise on the security front.

Example: If your application can handle the load of 100 users then execute your test with more than 100 users until your application gets crashed and then see the how it fails, Does it fail smoothly and able to recover? These are the few things which we need to do while doing stress testing.