Nagarro Senior Principal Engineer Interview Questions and Answers

Q1. How to do Deployment
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Q2. Mvc page life cycle
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Q1. Remove duplicates in an array
Ans. 
Use a hash set to remove duplicates in an array of strings
• Create a hash set to store unique elements

• Iterate through the array and add each element to the hash set

• Convert the hash set back to an array to get the unique elements
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Q2. What is react virtual DOM
Ans. 
React virtual DOM is a lightweight copy of the actual DOM, used for efficient updates and rendering in React applications.
• Virtual DOM is a concept where a lightweight copy of the actual DOM is created in memory.

• React uses virtual DOM to efficiently update and render components without directly manipulating the actual DOM.

• When changes are made to the virtual DOM, React calculates the most efficient way to update the act...read more
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Q3. React hooks with example
Ans. 
React hooks are functions that let you use state and other React features without writing a class.
• React hooks were introduced in React 16.8 to allow functional components to have state and lifecycle methods.

• useState() is a hook that allows you to add state to functional components.

• useEffect() is a hook that allows you to perform side effects in functional components.

• useContext() is a hook that allows you to use the con...read more
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Q1. Graphql , Web workers vs Service workers
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GraphQL is a query language for APIs, Web workers run scripts in background threads, Service workers are scripts that run in the background and can intercept network requests.
• GraphQL is a query language for APIs that allows clients to request only the data they need.

• Web workers run scripts in background threads separate from the main browser thread, improving performance by handling tasks concurrently.

• Service workers a...read more
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Q1. Technical related to my experience
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Q1. How to critical things in your project
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Q1. Expected Facilities
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Q1. General project discussion
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Q1. Success factor related question accessing general fitment
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Q1. Related to my past work
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Related various security domains

Q1. Related to various security domains
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Q1. Related to design of distributed systems
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Q1. Related to design of distributed systems
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Q1. Technical interview
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Q1. Ospf, sdwan, wireless, stp
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