Moody's Senior Software Developer Interview Questions and Answers

Q1. How would you write a REST API from scratch? Explain your role in the project.
Ans. 
To write a REST API from scratch, I would follow these steps:
• Define the resources and endpoints

• Choose a programming language and framework

• Implement CRUD operations for each resource

• Use HTTP methods and status codes correctly

• Add authentication and authorization

• Test the API using tools like Postman

• Document the API using tools like Swagger
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The Two-Sum Problem solve using any programming language(like C#, Python, JavaScrpit ...)

Q1. -About Your project & architecture -Dependency injection -Azure Function & other services -Authentication & Authorization (JWT)
Ans. Dependency injection is a technique for achieving inversion of control between class and their objects
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Q2. What is Angular Interceptor?
Ans. 
Angular Interceptor is a middleware that intercepts HTTP requests and responses.
• It can be used to add headers, modify requests, handle errors, and more.

• Interceptors can be global or specific to a certain request.

• Example use cases include adding authentication tokens to requests or logging responses.

• Interceptors are implemented using the HttpInterceptor interface in Angular.
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Q3. What is Microservice C#?
Ans. 
Microservice C# is a software architecture pattern where an application is built as a collection of small, independent services.
• Each service is responsible for a specific task or feature

• Services communicate with each other through APIs

• Allows for scalability, flexibility, and easier maintenance

• Examples include Netflix, Amazon, and Uber
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Q4. About angular state management?
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Q5. It's the process of managing the state of the user controls.
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Q1. Tell me about yourself.
Ans. 
I am a senior software developer with over 10 years of experience in developing and implementing software solutions.
• I have expertise in multiple programming languages including Java, Python, and C++.

• I have experience in developing web applications using frameworks such as Spring and Django.

• I have worked on projects involving database design and management using SQL and NoSQL databases.

• I have experience in leading devel...read more
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Java coding questions, basic Java questions.

Q1. Java basics questions.
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Q2. Live coding.
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Q1. Discussion on previous experience and projects.
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Q2. System design question
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Q1. Questions on SQL, Java advanced, personal projects, Java frameworks, UI based questions, Agile methodologies.
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Q2. Interview discussion with the whole team.
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Q1. Benefits discussion.
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Q2. Salary discussion.
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Basic concepts of programming

Q1. Programming concepts
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Q1. Core java concepts,Sql queries,2 coding question based on arrays and string
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Q2. Reverse the string
Ans. 
Reverse a given string
• Use a loop to iterate through the characters of the string

• Swap the characters from start to end to reverse the string

• Return the reversed string
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Q3. Find third highest salary from a employee table
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Q1. Advance java and project related
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Q2. Springboot and spring diff
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Q3. Springboot annotations used in your project
Ans. 
Some common Springboot annotations used in projects are @RestController, @Autowired, @RequestMapping, @Service, @Component, @Repository.
• @RestController - Used to define RESTful web services.

• @Autowired - Used for automatic dependency injection.

• @RequestMapping - Used to map web requests to specific handler methods.

• @Service - Used to indicate that a class is a service.

• @Component - Used to indicate that a class is a Spring...read more
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Q4. Springboot dependencies
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Q1. In How many ways we can create objects in Java
Ans. 
Objects in Java can be created in multiple ways, including using new keyword, cloning, deserialization, and reflection.
• Using the 'new' keyword

• Cloning an existing object

• Deserialization from a file or network

• Using reflection to create objects dynamically
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Q2. Difference between Interface and Abstract Class
Ans. 
Interface is a contract that defines the methods a class must implement, while abstract class can have both implemented and abstract methods.
• Interface methods are public and abstract by default, while abstract class can have abstract and non-abstract methods.

• A class can implement multiple interfaces but can only inherit from one abstract class.

• Interfaces are used to achieve multiple inheritance in Java, while abstract ...read more
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Q3. What is Serialization
Ans. 
Serialization is the process of converting an object into a format that can be easily stored or transmitted.
• Serialization is used to convert complex data structures or objects into a stream of bytes.

• Serialized data can be stored in files, databases, or sent over a network.

• Common serialization formats include JSON, XML, and Protocol Buffers.
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