Iris Software Senior Technical Consultant Interview Questions and Answers

Q1. React Life cycle methods
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Q2. Machine coding with crypto price api
Ans. 
Using a crypto price API to fetch and display real-time cryptocurrency prices in a machine coding project.
• Utilize a crypto price API to fetch real-time cryptocurrency prices

• Implement error handling for API requests

• Display the fetched prices in a user-friendly format
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Technology related question

Build a architecture diagram HLD & LLD for rate limiter

HLD for batch scheduling miroservice level

Algo check to correct the directory pattern

Q1. Mix of coding, theory and design questions
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Q1. Solid principle implemantion in c#
Ans. 
Solid principles are a set of design principles that help make software more maintainable, flexible, and scalable.
• 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 wi...read more
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Q2. Write a code for Entity framework DB connection
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Code snippet for Entity Framework DB connection
• Install Entity Framework NuGet package

• Create a DbContext class

• Define DbSet properties for each entity

• Configure connection string in app.config/web.config

• Use DbContext to interact with the database
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Q3. Get 3 rd highest salary
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To get the 3rd highest salary, we can use a SQL query with the 'LIMIT' and 'OFFSET' keywords.
• Use a SQL query with 'ORDER BY salary DESC' to sort salaries in descending order.

• Use 'LIMIT 1 OFFSET 2' to skip the first two highest salaries and get the 3rd highest salary.

• Example: SELECT salary FROM employees ORDER BY salary DESC LIMIT 1 OFFSET 2;
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Q4. Why we using interface in C#
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Interfaces in C# provide a way to define a contract for classes to implement, promoting code reusability and flexibility.
• Interfaces allow for multiple inheritance in C# by allowing a class to implement multiple interfaces.

• Interfaces help in achieving loose coupling between classes, making the code more maintainable and testable.

• Interfaces are used to define common behavior that multiple classes can share, promoting cod...read more
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Q1. Why you want to change the company
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Q1. Work experience
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Write a program on priority queue

Q1. Questions on network protocol
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Q2. Question on non-blocking socket
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Q3. Question on linked list
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Q1. Interview with cliient directly similar questions like round 2
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