AppInventiv Technologies Node JS Developer Interview Questions and Answers

Q1. Questions were completely based on data structures and algorithm
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Q2. SQL based questions were also asked
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Q1. The interviewer is from testing panel how the testing panel can take a developer interview they don’t have any knowledge about java worst interviewer in my life they waste my 1hour. after answer all the qu...read more
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Q2. What is encapsulation. Protected and default difference i have to explain her with example. Collection and hashmap i explain all the things in hashmap even the implementation After that she said to write ...read more
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Q3. She asked me about helm chart and aws.I did answer according to it. My interview was pretty well but very next day what i got to know from HR that my basic was not clear that’s very very unprofessional beh...read more
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Q1. What is Common Term Expression?
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Q2. What is Overloading and Overriding?
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Overloading is having multiple methods in the same class with the same name but different parameters. Overriding is implementing a method in a subclass that is already defined in the parent class.
• Overloading allows a class to have multiple methods with the same name but different parameters.

• Overriding is when a subclass provides a specific implementation of a method that is already defined in its parent class.

• Example o...read more
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Q3. Examples of Server side session Management? Types of Session State?
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Server side session management involves storing user data on the server to maintain state. Types include in-process, out-of-process, and database.
• In-process session state: Data stored in memory on the same server as the application.

• Out-of-process session state: Data stored in a separate server or service, such as a state server or Redis cache.

• Database session state: Data stored in a database, such as SQL Server or MySQ...read more
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Q4. How to Debug Stored Procedures?
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Debugging stored procedures involves using tools like SQL Server Management Studio, setting breakpoints, and analyzing query execution.
• Use SQL Server Management Studio to debug stored procedures

• Set breakpoints in the stored procedure code to pause execution at specific points

• Analyze query execution using tools like SQL Profiler to identify issues

• Use PRINT or SELECT statements to output intermediate results for debuggin...read more
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Q5. What is Compile time binding and Runtime Binding?
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Compile time binding occurs during compilation while runtime binding occurs during execution.
• Compile time binding is also known as early binding, where the method to be called is determined at compile time based on the type of the object.

• Runtime binding is also known as late binding, where the method to be called is determined at runtime based on the actual type of the object.

• Compile time binding is faster as it is don...read more
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Q1. About project of previous company
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Q2. Check palindrome and odd of given number
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2 questions on hackerrank array n string related

Q1. Design custom hashmap
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Custom hashmap design involves creating a data structure that maps keys to values for efficient retrieval.
• Use an array of linked lists to handle collisions

• Implement methods for adding, removing, and retrieving key-value pairs

• Consider resizing the hashmap when it reaches a certain load factor
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Q2. System design of current project
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The system design of the current project involves a microservices architecture with containerization using Docker and orchestration with Kubernetes.
• Utilizing microservices architecture for scalability and maintainability

• Containerizing applications with Docker for portability and consistency

• Orchestrating containers with Kubernetes for automated deployment and scaling
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It consists mcq question based on technical skills and 2 coding questions

Q1. Directly coding solve
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Good round moderate coding questions were asked

Q1. Coding question based on trees
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Q2. Coding question based on math/binary search
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A paper based test and it was technical

Q1. About the projects
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Q2. Some sql questions
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