ERGO Technology & Services Senior Software Engineer Interview Questions and Answers

Q1. Do you have working experience of SwiftUI
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Q2. Have you ever implemented or worked with server driven UIs
Ans. 
Yes, I have experience implementing server driven UIs.
• Implemented server driven UIs using JSON responses to dynamically update UI elements

• Worked with frameworks like React and Angular to handle server driven UI updates

• Used server driven UIs to efficiently manage and display large amounts of data
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Q1. What is closure and types?
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Closure is a function that captures variables from its surrounding scope, allowing it to access those variables even after the scope has closed.
• Closure allows a function to access variables from its lexical scope even after the function has finished executing.

• Types of closures include lexical closures, which capture variables from the surrounding lexical scope, and function closures, which capture variables from the fu...read more
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Q2. What is Core data and all operations with example/scenarios
Ans. 
Core Data is a framework provided by Apple for managing the model layer objects in an iOS application.
• Core Data is used for storing, retrieving, and managing data in an iOS app.

• It provides an object-oriented interface to work with data.

• Operations include creating, reading, updating, and deleting data.

• Example: Creating a new record in Core Data for a user profile.

• Example: Fetching a list of items from Core Data to displ
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Q1. Why you want to join the company?
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Q2. Why should we hire you
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Q1. Technical skills related questions
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Q2. Hands on / live coding
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Q1. Deep knowledge checking for mentioned skill
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Q1. One small logical programming question, its quite easy
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Q2. Some SQL queries
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Q3. Spring boot questions and about my previous clients and projects
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Q1. Java 8 interview questions
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Q2. Spring boot questions
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Q1. Microservices strurcture and implementation
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DSA is asked, for example implement your HashMap, Stack, Queue

Q1. Spring boot advanced
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Q2. Java core advanced
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Q3. Reactjs hooks
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Q4. Optimisation techniques
Ans. 
Optimisation techniques are methods used to improve the efficiency and performance of software applications.
• Use of algorithms like dynamic programming to reduce time complexity

• Utilizing data structures like hash tables for faster data retrieval

• Implementing caching mechanisms to store frequently accessed data

• Profiling and analyzing code to identify bottlenecks and optimize them
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Q1. High level system design for newspaper
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A newspaper application system design involves components like user interface, content management, user authentication, and data storage.
• User interface for reading articles and viewing images/videos

• Content management system for publishing articles, managing categories, and scheduling posts

• User authentication system for login, registration, and profile management

• Data storage for storing articles, images, user data, and
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Q2. Google map application
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Q1. SOLID principal in detail
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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 affe...read more
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Q2. OOPs concept in detail
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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: H...read more
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Q3. .Net fundamental and it's features in detail
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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)...read more
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Q1. Relocation related questions
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Q2. Salary discussion for offer letter
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Q1. Team fitment for project allocation
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Q2. Company introduction and behavioral/cultural expectation
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