Moody's Analytics Senior Software Engineer Interview Questions and Answers

Q1. Explain how you read messages from google cloud pusub
Ans. 
Reading messages from Google Cloud Pub/Sub involves creating a subscription and pulling messages from the subscription.
• Create a subscription to a Google Cloud Pub/Sub topic

• Use the subscription to pull messages from the topic

• Process the messages received from the subscription
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It was a very simple coding test and the interviewer was focused on understanding the tradeoffs and time complexity analysis rather than the solution itself. And also asked a lot of questions of the hashmap internals, ArrayList implementation which was off track to what the interview was for.

Q1. Java basics, String, logic coding (for loop sand if conditions), arrays.
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Q2. AWS basics - VPC, Subnet, Step functions, ELB
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Q1. Trick questions, leading a team, working in a team related.
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Q2. Having a good and friendly attitude will help.
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Q1. Salary negotiation
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Q1. Monolithic and microservice architecture difference and how will you migrate.
Ans. 
Monolithic architecture is a single large application while microservice architecture is a collection of small, independent services.
• Monolithic architecture is a single, tightly coupled application where all components are interconnected.

• Microservice architecture breaks down the application into smaller, loosely coupled services that communicate through APIs.

• Migrating from monolithic to microservices involves breaking ...read more
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Q1. Managerial round few technical questions followed by team building and leadership related questions asked.
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Q1. Basic leadership related questions and few questions on why job change etc
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Q1. Difference between abstract class and interface?
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Q2. Explain OOP in C#?
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Java coding questions asked

Q1. Overriding rules
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Q1. Why should we hire you
Ans. 
I have a strong technical background, proven track record of delivering high-quality software, and excellent problem-solving skills.
• Extensive experience in software development with expertise in multiple programming languages such as Java, Python, and C++

• Proven track record of successfully delivering complex projects on time and within budget

• Strong problem-solving skills and ability to think creatively to find innovati...read more
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Q1. Pagination in SQL
Ans. 
Pagination in SQL allows for displaying a subset of query results at a time.
• Use LIMIT and OFFSET clauses in SQL queries to implement pagination.

• LIMIT specifies the maximum number of rows to return.

• OFFSET specifies the number of rows to skip before starting to return rows.
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Q2. OOPS concepts.. SOILD design principles
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Q3. Thread vs task in multiprocessing.. explain with examples
Ans. 
Threads and tasks are both used in multiprocessing, but have different characteristics and use cases.
• Threads are lightweight processes within a single process, sharing memory space. They are managed by the operating system.

• Tasks are units of work that can be executed asynchronously. They are typically managed by a task scheduler.

• Threads are suitable for parallel processing and improving performance, while tasks are use...read more
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Q4. ViewBag vs Tempdata in MVC
Ans. 
ViewBag is used to pass data from controller to view, while TempData is used to pass data between controller actions.
• ViewBag is a dynamic property that allows you to pass data from controller to view

• TempData is a dictionary object that allows you to pass data between controller actions

• ViewBag is not type-safe and requires typecasting, while TempData is type-safe

• ViewBag data is lost if redirection occurs, while TempData
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Q5. Abstract vs Interface
Ans. 
Abstract classes can have both abstract and non-abstract methods, while interfaces can only have abstract methods.
• Abstract classes can have constructors, fields, and non-abstract methods.

• Interfaces can only have abstract methods and constants.

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