Wipro Digital Senior Consultant Interview Questions and Answers

Q1. Data migration strategies
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Q1. Project scenarios
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Q1. Why do you want to join Luxoft
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Q1. Which protocol/protocols works when there is a communication between 2 Pbx systems?
Ans. 
The protocols that work when there is a communication between 2 Pbx systems are SIP (Session Initiation Protocol) and H.323.
• SIP (Session Initiation Protocol) is commonly used for setting up and tearing down voice or video calls over IP networks.

• H.323 is an older protocol used for multimedia communication over IP networks.

• Both SIP and H.323 are commonly used in VoIP (Voice over Internet Protocol) systems to facilitate c
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Q1. Testing of java queue
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Testing of Java queue involves verifying the functionality and performance of queue operations.
• Test enqueue and dequeue operations to ensure elements are added and removed correctly.

• Test for proper handling of edge cases such as empty queue, full queue, and queue with one element.

• Performance testing to evaluate the efficiency of queue operations under different load conditions.
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Q2. Design to the microservices
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Designing microservices involves breaking down a monolithic application into smaller, independent services.
• Identify the boundaries of each microservice based on business capabilities

• Decide on communication protocols between microservices (REST, messaging, etc.)

• Implement fault tolerance and scalability measures for each microservice

• Use containerization (Docker) and orchestration tools (Kubernetes) for deployment

• Monitor ...read more
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Q1. Salary hike why required
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Q2. Relocation allowance required when
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Q1. Solid Principals
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Peer-coding test based on the provided tech-stack

Q1. Current project overview & it's architecture
Ans. 
Current project involves developing a cloud-based CRM system for a multinational corporation.
• Utilizing microservices architecture for scalability and flexibility

• Implementing RESTful APIs for seamless integration with other systems

• Leveraging cloud services like AWS for hosting and data storage

• Using Docker containers for easy deployment and management
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Q2. System design questions & LLD
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Java Functional programming

Q1. Java 8 features
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Q2. Design patterns
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Q1. Experience in company
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Q2. Expectation of salary
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Q1. Best coding practises
Ans. 
Best coding practices involve writing clean, efficient, and maintainable code.
• Use meaningful variable and function names

• Follow consistent coding style and formatting

• Write comments to explain complex logic

• Avoid duplicate code by using functions and classes

• Test code thoroughly before deployment
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Q2. What is TDD and writing of testcases
Ans. 
TDD stands for Test-Driven Development, which involves writing test cases before writing the actual code.
• TDD is a software development process where tests are written before the code implementation.

• Test cases are written based on the expected behavior of the code.

• Developers write just enough code to pass the tests, ensuring code quality and functionality.

• TDD helps in identifying bugs early in the development process.

• Ex...read more
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Q1. Deep understanding on your project
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Q2. Why did you choose this way or this techstack and so on
Ans. 
I chose this tech stack because of its scalability, performance, and community support.
• Chose tech stack based on scalability needs

• Selected for performance optimization

• Considered community support for troubleshooting and updates
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Hackerrank coding test related to Java 8, Spring Boot and some other JPA stuff. The recruiter just told me that it was an online coding challenge so I did not know what to expect or what to prepare. I just thought it would be some DSA or puzzle challenge round. I think it was 30 questions in 30 minutes of something like that. I thought that did not do well, surprisingly they asked to attend the second round.

Q1. What happens to a HTTP request when it leaves a client making a call and before reaching the server?
Ans. 
HTTP request passes through multiple network layers before reaching the server.
• HTTP request is first sent from client to local network router.

• Router forwards request to Internet Service Provider's network.

• Request then passes through multiple routers and switches in the internet backbone.

• Finally, request reaches the server hosting the requested website or service.

• Each network layer adds its own headers and metadata to t
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Q2. Why is HTTP stateless?
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HTTP is stateless because it does not retain information about previous requests.
• HTTP treats each request as an independent transaction without any knowledge of previous requests.

• This design simplifies implementation and improves scalability.

• State information can be managed using cookies or session tokens.

• Example: When a user logs into a website, the server may create a session token to track the user's activity.
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Q3. General questions about my career.
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