Tietoevry Senior Software Engineer Interview Questions and Answers

Design patterns are reusable solutions to common software design problems. They include creational, structural, and behavioral patterns.

• Design patterns are reusable solutions to common software design problems.

• They provide proven solutions to recurring design problems.

• Design patterns can be categorized into creational, structural, and behavioral patterns.

• Creational patterns deal with object creation mechanisms.

• Structural patterns focus on class and object composition.

• Behavior...read more

Function app is a serverless compute service that enables you to run code on-demand without having to manage infrastructure.

• Function app is used to run code on-demand without managing infrastructure

• It is a serverless compute service

• It supports multiple languages and integrates with other Azure services

• Examples of Function app include Azure Functions and Logic Apps

Answers to technical questions for Senior Software Engineer interview

• Webpack is a module bundler for JavaScript applications

• Optimizing React app can be done by code splitting, lazy loading, using production build, etc.

• Flexbox is for one-dimensional layout while Grid is for two-dimensional layout

• CSS box model is a way to represent the layout of HTML elements

The .Net framework is a software development platform developed by Microsoft, providing a wide range of tools and libraries for building various types of applications.

• Common Language Runtime (CLR) - manages memory, security, and execution of code

• Base Class Library (BCL) - provides a set of reusable classes for common programming tasks

• ASP.NET - framework for building web applications

• Windows Presentation Foundation (WPF) - for building desktop applications with rich user interf...read more

SOLID is a set of five design principles for writing maintainable and scalable object-oriented software.

• Single Responsibility Principle (SRP) - A class should have only one reason to change.

• Open/Closed Principle (OCP) - Software entities should be open for extension but closed for modification.

• Liskov Substitution Principle (LSP) - Objects of a superclass should be replaceable with objects of its subclasses without affecting the program's correctness.

• Interface Segregation Prin...read more

OOPs (Object-Oriented Programming) is a programming paradigm based on the concept of objects, which can contain data and code.

• Encapsulation: Bundling data and methods that operate on the data into a single unit (object)

• Inheritance: Ability for a class to inherit properties and behavior from another class

• Polymorphism: Ability for objects of different classes to respond to the same message in different ways

• Abstraction: Hiding the complex implementation details and showing only ...read more

Exceptions are unexpected events that occur during the execution of a program and disrupt the normal flow of the program.

• Exceptions are used to handle errors and other exceptional conditions in a program.

• They can be caught and handled using try-catch blocks.

• Examples of exceptions include NullPointerException, ArrayIndexOutOfBoundsException, and IOException.

Repository pattern is a design pattern that separates data access logic from business logic in an application.

• It helps in achieving separation of concerns by abstracting the data access logic into a separate layer.

• It provides a way to centralize data access logic and reuse it across the application.

• It typically involves creating interfaces for data access operations and implementing them in concrete classes.

• Example: In a web application, the repository pattern can be used to ...read more