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Tricon Infotech

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Durr India Interview Questions and Answers

Updated 6 Nov 2024

Q1. Explain FastAPI and headers, path parameters, etc

Ans.

FastAPI is a modern web framework for building APIs with Python, providing easy handling of headers, path parameters, etc.

  • FastAPI is a Python web framework for building APIs quickly and efficiently

  • It provides easy handling of headers, path parameters, query parameters, and request bodies

  • Headers can be accessed using the request.headers attribute

  • Path parameters are defined in the route URL and accessed as function parameters

  • Example: @app.get('/items/{item_id}'), def read_item(...read more

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Q2. Write a API to demonstrate GET, POST, PUT

Ans.

API demonstrating GET, POST, PUT methods

  • Create a route for GET method to retrieve data

  • Create a route for POST method to add new data

  • Create a route for PUT method to update existing data

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Q3. What is middleware and how do you implement custom middleware?

Ans.

Middleware is software that acts as a bridge between an operating system or database and applications, allowing them to communicate with each other.

  • Middleware is a layer of software that connects different components of an application, such as the frontend and backend.

  • It can handle tasks like authentication, logging, error handling, and request processing.

  • Custom middleware can be implemented by creating a function that takes in parameters like request, response, and next, and...read more

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Q4. What are indexer in c#?

Ans.

Indexers in C# allow objects to be indexed like arrays, providing a way to access elements using an index value.

  • Indexers are defined using 'this' keyword followed by square brackets containing the index parameters.

  • They can be used to get or set the value of an element in a collection or class.

  • Example: public string this[int index] { get { return myArray[index]; } set { myArray[index] = value; }}

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Q5. What is application Poll?

Ans.

Application Poll is a process where the application periodically checks for updates or changes in a certain resource or data source.

  • Application Polling is commonly used in web applications to update data without the need for manual refresh.

  • It helps in keeping the application up-to-date with the latest information.

  • Polling intervals can be set based on the frequency of updates in the resource being monitored.

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Q6. What is AsNoTracking in Linq?

Ans.

AsNoTracking in Linq is used to disable change tracking in Entity Framework, improving performance by not storing entities in the context.

  • AsNoTracking method is used to retrieve data without tracking changes made to the entities.

  • It is useful when you only need to read data and do not intend to update or delete it.

  • By using AsNoTracking, you can improve performance by avoiding the overhead of storing entities in the context.

  • Example: var result = context.Products.AsNoTracking()....read more

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Q7. How do you test Api?

Ans.

API testing involves verifying the functionality, performance, reliability, and security of an API.

  • Write test cases to cover all possible scenarios

  • Use tools like Postman or SoapUI for manual testing

  • Automate testing using tools like Selenium or JUnit

  • Verify response codes, data formats, and error handling

  • Perform load testing to check performance under heavy traffic

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Q8. Introduce yourself? Difference between C and python?

Ans.

C is a compiled language with low-level memory manipulation capabilities, while Python is an interpreted language with high-level abstractions.

  • C is faster and more memory-efficient than Python.

  • Python has a simpler syntax and is easier to learn than C.

  • C is better suited for system-level programming, while Python is better for scripting and rapid prototyping.

  • C requires manual memory management, while Python has automatic garbage collection.

  • C has a static type system, while Pyth...read more

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Q9. what is java, what is spring boot

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