10+ Sciflare Technologies Private Limited Interview Questions and Answers

Integrating two databases in one application involves setting up a connection between the databases and managing data synchronization.

• Use a common data model to map data between the two databases

• Establish a connection using database connectors or APIs

• Implement data synchronization processes to ensure consistency

• Consider data migration strategies if needed

NoSQL is a non-relational database while SQL is a relational database.

• NoSQL databases are schema-less and flexible while SQL databases have a fixed schema.

• NoSQL databases are horizontally scalable while SQL databases are vertically scalable.

• NoSQL databases are better suited for handling unstructured data while SQL databases are better suited for structured data.

• Examples of NoSQL databases include MongoDB, Cassandra, and Redis while examples of SQL databases include MySQL, Ora...read more

Developed a web application for managing inventory in a retail store.

• Implemented user authentication for secure access.

• Designed a user-friendly interface for easy navigation.

• Integrated barcode scanning functionality for quick inventory updates.

Filters are used to intercept and modify HTTP requests and responses in MVC.

• Filters are used to add functionality to MVC applications.

• There are five types of filters in MVC: Authorization, Action, Result, Exception, and Resource.

• Authorization filters are used to authenticate users and restrict access to certain actions.

• Action filters are used to modify the behavior of an action method before and after execution.

• Result filters are used to modify the result of an action method ...read more

SQL query to retrieve data from a given dataset

• Use SELECT statement to specify the columns you want to retrieve

• Use FROM statement to specify the table where the data is stored

• Use WHERE statement to filter the data based on specific conditions

OOP is a programming paradigm where objects represent real-world entities and interact with each other through methods and properties.

• OOP focuses on creating objects that encapsulate data and behavior

• Objects communicate with each other by sending messages

• Inheritance allows objects to inherit properties and methods from parent classes

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

• Encapsulation hides the internal state of an object and only exposes ...read more

Web API routing is the process of mapping incoming HTTP requests to specific actions or methods in the API.

• Routing is defined in the WebApiConfig.cs file in the App_Start folder.

• Routes are defined using the HttpRouteCollection class.

• Routes can include parameters, constraints, and defaults.

• Attribute routing can also be used to define routes directly on controller actions.

• Routing can be used to handle different HTTP methods and versions of the API.

CTE stands for Common Table Expression in SQL Server.

• CTE is a temporary named result set that can be referenced within a SELECT, INSERT, UPDATE, or DELETE statement.

• It helps to simplify complex queries and improve performance.

• It can be recursive, allowing a query to reference itself.

• It starts with the WITH keyword followed by the name of the CTE and the SELECT statement that defines it.

Stored procedures are precompiled SQL statements that can be called by name, while functions return a single value.

• Stored procedures can modify data, while functions cannot

• Functions can be used in SQL statements, while stored procedures cannot

• Stored procedures can have output parameters, while functions cannot

• Functions can be called from within stored procedures, while stored procedures cannot be called from within functions

OOPs concepts are the fundamental principles of object-oriented programming.

• Encapsulation - bundling of data and methods that operate on that data

• Inheritance - ability of a class to inherit properties and characteristics from its parent class

• Polymorphism - ability of an object to take on many forms

• Abstraction - hiding of complex implementation details from the user

ASP.NET supports two types of routing: convention-based routing and attribute routing.

• Convention-based routing uses a set of predefined rules to map incoming URLs to controller actions.

• Attribute routing allows developers to define routes directly on the controller actions using attributes.

• Both types of routing can be used together in the same application.

• Example: [Route("api/products/{id}")] public IHttpActionResult GetProduct(int id) { ... }

Promise in JS is an object representing the eventual completion (or failure) of an asynchronous operation.

• A promise can be in one of three states: pending, fulfilled, or rejected.

• Promises help in handling asynchronous operations in a more organized and readable way.

• Example: const myPromise = new Promise((resolve, reject) => { // async operation });

ASP.NET Core is a cross-platform, high-performance framework for building modern, cloud-based, internet-connected applications.

• Open-source framework developed by Microsoft

• Supports multiple platforms including Windows, macOS, and Linux

• Used for building web applications, APIs, and microservices

• Provides high performance and scalability

• Includes features like dependency injection, middleware, and MVC pattern