Broadridge Financial Solutions Senior Software Engineer Interview Questions and Answers for Experienced

Q1. Micro services architecture
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Q1. Java ,springboot
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Q1. Springboot and java questions
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Q1. What are SSL certificates?
Ans. 
SSL certificates are digital certificates that authenticate the identity of a website and encrypt information sent to the server.
• SSL certificates ensure secure communication between a user's browser and a website's server.

• They use encryption to protect sensitive data such as login credentials, credit card information, etc.

• SSL certificates are issued by Certificate Authorities (CAs) and contain information about the web...read more
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Q2. What are the ways to secure REST API?
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Securing REST API involves using authentication, authorization, encryption, and input validation.
• Use authentication methods like OAuth, JWT, or API keys to verify the identity of clients.

• Implement authorization to control access to resources based on user roles and permissions.

• Encrypt data transmission using HTTPS to protect sensitive information from being intercepted.

• Validate and sanitize input data to prevent inject
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Q3. What if your application is down for 1 hour in one site in prod?
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I would investigate the root cause, work on fixing the issue, and implement measures to prevent it from happening again.
• Investigate the root cause of the downtime, such as network issues, server failures, or software bugs

• Work on fixing the issue promptly to minimize impact on users and business operations

• Implement measures to prevent similar downtime in the future, such as redundancy, monitoring, and failover mechanism
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Q4. How do you make sure a throttling system process dropped messages from a slow downstream service?
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Implement a throttling system to handle dropped messages from a slow downstream service.
• Implement a queue to store messages from the downstream service.

• Set a maximum queue size and drop messages when the queue is full.

• Use a timestamp to track when messages were received and process them in order.

• Implement a retry mechanism to reprocess dropped messages after a certain time.

• Monitor the queue size and processing speed to
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Q1. System design basics
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Q2. Java 8 stream api code
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Q3. Current project
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Q1. Only arrogance related stuff
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Q2. Only arrogance related stuff happened
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Q1. Given a grid containing 0s and 1s and source row and column, in how many ways, could we reach form source to target. ( 1's represents a blockade and 0's represent accessable points)
Ans. 
Count the number of ways to reach target from source in a grid with 0s and 1s.
• Use dynamic programming to solve the problem efficiently.

• Traverse the grid using DFS or BFS to count the number of ways.

• Consider edge cases like when source and target are the same or when there is no path.

• Example: Given grid = [[0,0,0],[0,1,0],[0,0,0]], source = (0,0), target = (2,2), answer is 2.

• Example: Given grid = [[0,1],[0,0]], source =
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Q2. 1. High Level System Design -> Design Uber like Service. Follow up -> What would be your tech stack for designing such a service to make sure it could scale when needed.
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Tech stack for designing a scalable Uber-like service.
• Use microservices architecture for scalability and fault tolerance.

• Choose a cloud provider with auto-scaling capabilities.

• Use a load balancer to distribute traffic across multiple instances.

• Use a NoSQL database for high availability and scalability.

• Use message queues for asynchronous communication between services.

• Use containerization for easy deployment and managem...read more
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Q3. (HLD) -> Design a service which combines multiple sources of data/documentation and aggregates it such that all info is available centrally.
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Design a service to aggregate multiple sources of data/documentation centrally.
• Identify sources of data/documentation

• Determine data aggregation method

• Design a centralized database to store aggregated data

• Develop a user-friendly interface to access the data

• Ensure data security and privacy
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Q4. (Behavioral) Describe a scenario in which you went above and beyond your regular assigned tasks and responsibilities to help out the Team/Colleague/Organization.
Ans. 
I took on additional responsibilities to help a colleague with a tight deadline.
• Assisted a colleague with a project that had a tight deadline

• Took on additional tasks outside of my regular responsibilities

• Worked extra hours to ensure the project was completed on time

• Provided guidance and support to the colleague throughout the project
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Online assesment . 5 coding question in 90 minutes

Hackerrank coding test with paired screen. They give problem we have to write the logic

Again hacker rank code pair. the give problem and have to write logic. this round with staff senior engineer

Online test link given data structures were asked, array problem and string problem
Likewise Double Linked List was also asked

Q1. Spring boot API endpoint description
Ans. 
Spring Boot API endpoint is a URL that exposes the functionality of a web service.
• API endpoints are the entry points for the client to access the server's resources.

• Spring Boot provides a simple and easy way to create RESTful APIs.

• Endpoints can be secured using Spring Security.

• Endpoints can be documented using Swagger or Spring REST Docs.

• Examples: /users, /products, /orders
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Q2. CI CD pipeline, Docker Kubernetes
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Q1. Explain the last technically challenging topic that you have worked on. The engineering manager is only interested in self boasting. Without even trying to understand the entire problem statement, they try...read more
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