Maxval Technologies Software Engineer Interview Questions and Answers

Delete query in MongoDB removes documents from a collection based on specified criteria.

• Use the 'deleteMany' method to delete multiple documents matching a filter

• Use the 'deleteOne' method to delete a single document matching a filter

• Specify the filter criteria to identify the documents to be deleted

Java oops concepts include inheritance, encapsulation, polymorphism, and abstraction.

• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation involves bundling data and methods that operate on the data into a single unit.

• Polymorphism allows objects to be treated as instances of their parent class.

• Abstraction hides the implementation details and only shows the necessary features to

React is a JavaScript library used for building user interfaces.

• React allows developers to create reusable UI components.

• It uses a virtual DOM for efficient rendering.

• React can be used for building single-page applications.

• It is maintained by Facebook and a community of developers.

• React can be used with other libraries and frameworks like Redux.