BYJU'S QA Engineer Interview Questions and Answers

Polymorphism is the ability of an object to take on many forms. A real-time example is a Shape class with different subclasses like Circle, Square, and Triangle.

• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables code reusability and flexibility in object-oriented programming.

• For example, a Shape class can have a draw() method that is overridden by its subclasses ...read more

Authentication verifies the identity of a user, while authorization determines what actions they can perform.

• Authentication confirms the user's identity through credentials like username and password.

• Authorization grants or denies access to specific resources or actions based on the user's authenticated identity.

• Authentication precedes authorization in the security process.

• Example: Logging into a website with a usernam...read more