Siemens QA Engineer Interview Questions and Answers

Variables in Postman are placeholders that can be used to store and reuse values in requests and scripts.

• Variables in Postman are denoted by enclosing them in double curly braces like {{variable_name}}

• Variables can be defined at different scopes such as global, environment, and local

• Variables can be used to store values like API keys, tokens, and dynamic data

• Variables can be dynamically updated using scripts or pre-req

Different types of SQL joins include inner join, left join, right join, and full outer join.

• Inner join: Returns rows when there is a match in both tables

• Left join: Returns all rows from the left table and the matched rows from the right table

• Right join: Returns all rows from the right table and the matched rows from the left table

• Full outer join: Returns rows when there is a match in either table

The main method is static in Java because it needs to be called by the JVM without creating an instance of the class.

• Static methods can be called without creating an instance of the class.

• The main method is the entry point of a Java program, so it needs to be accessible without creating objects.

• Having the main method as static ensures that it can be called by the JVM before any objects are created.

Overloading construction is possible in programming by defining multiple functions with the same name but different parameters.

• In programming, overloading construction refers to defining multiple functions with the same name but different parameters.

• The compiler determines which function to call based on the number and types of arguments passed to it.

• For example, you can have multiple functions named 'calculate' that a...read more

Smoke testing is a quick test to check if the basic functionalities of the software are working, while sanity testing is a subset of regression testing to ensure that specific functionalities are working after changes.

• Smoke testing is performed to ensure that the critical functionalities of the software are working fine before proceeding with detailed testing.

• Sanity testing is a focused testing to verify specific areas...read more

JMeter is a tool used for performance testing and CRUD operations.

• Install and open JMeter

• Create a Test Plan

• Add Thread Group and configure the number of users

• Add HTTP Request Sampler for CRUD operations

• Configure the HTTP Request Sampler with the appropriate method (GET, POST, PUT, DELETE)

• Add Listeners to view and analyze the test results

• Run the test and analyze the performance metrics