Software Engineering Senior Analyst Interview Questions and Answers

Performance testing is the process of determining the speed, responsiveness, and stability of a system under a specific workload.

• Performance testing helps identify bottlenecks and optimize system performance.

• It involves simulating real-world scenarios to measure how the system behaves under different conditions.

• Automation testing is preferred over manual testing for performance testing due to its ability to run tests repeatedly and consistently.

• Automation tools like JMeter, L...read more

Regression testing is re-running functional and non-functional tests to ensure previously developed and tested software still performs correctly after a change.

• Regression testing involves re-running tests to ensure that new code changes have not adversely affected existing functionality.

• It helps in identifying any defects introduced in the code due to recent changes.

• Examples of regression testing tools include Selenium, JUnit, and TestNG.

Various design patterns were used including Singleton, Factory, and Observer.

• Singleton pattern was used to ensure only one instance of a class exists.

• Factory pattern was used to create objects without specifying the exact class of object that will be created.

• Observer pattern was used to define a one-to-many dependency between objects so that when one object changes state, all its dependents are notified and updated automatically.