Innover Digital Developer Associate Interview Questions and Answers

Good questions and dsa arrays and string questions

Q1. Oops related questions
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Q2. DSA questions
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Q1. All combined questions
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Q1. Tell us about your experience.
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Q2. In english, give me a feedback you received lately.
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Q1. Brief explanation of SOLID principles
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Q2. Ref vs out arguments
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Q1. Oops concept asked
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Q2. Springboot annotations
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Q1. Project details simply
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Q2. Springboot related
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Q1. Easy about salary
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Q2. Details about asked
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Q1. What is React, and what are its lifecycle methods?
Ans. 
React is a JavaScript library for building user interfaces.
• React is used for creating interactive UI components.

• It uses a virtual DOM for efficient rendering.

• React lifecycle methods include componentDidMount, componentDidUpdate, and componentWillUnmount.

• These methods allow developers to perform actions at specific points in a component's lifecycle.
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Q2. What is the virtual DOM and how does reconciliation work in it?
Ans. 
Virtual DOM is a lightweight copy of the actual DOM used for efficient updates. Reconciliation is the process of updating the actual DOM based on changes in the virtual DOM.
• Virtual DOM is a lightweight copy of the actual DOM kept in memory.

• When changes are made to the UI, they are first reflected in the virtual DOM.

• Reconciliation is the process of comparing the virtual DOM with the actual DOM and updating only the nece...read more
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Aptitude,reasoning,verbal,C language,Java,C++

Q1. What is interface in JAVA
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Q2. Explain OOPS in JAVA
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Q1. How to create restfull api
Ans. 
To create a RESTful API, define endpoints, use HTTP methods, handle requests and responses, and follow REST principles.
• Define endpoints for different resources (e.g. /users, /products)

• Use HTTP methods (GET, POST, PUT, DELETE) for CRUD operations

• Handle requests and responses in JSON format

• Follow REST principles like statelessness, uniform interface, and client-server architecture
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Q2. How to do pagination in jpa
Ans. 
Pagination in JPA allows fetching a subset of results from a query.
• Use the setFirstResult() method to set the starting index of the results to retrieve

• Use the setMaxResults() method to set the maximum number of results to retrieve

• Combine setFirstResult() and setMaxResults() to implement pagination
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Q1. They have connected the client call with me directly and only that 2 round of technical interview happened and hr round. That's it
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Q1. Easy interview interview with tcs
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Q2. Hana consultant
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Q1. Project based backend and frontend
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Q2. How to connect to backend
Ans. 
To connect to the backend, you can use APIs, database connections, or web services.
• Use APIs to send and receive data between the frontend and backend

• Establish database connections to retrieve and store data

• Utilize web services for communication between different systems
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