Ksolves India Limited Senior Data Scientist Interview Questions and Answers

As a Senior Software Engineer, I worked with various tools and technologies to develop and maintain software applications.

• Developed and maintained software applications using Java, Python, and C++ programming languages

• Used Agile methodology for software development and collaborated with cross-functional teams

• Worked with various tools such as Git, JIRA, Jenkins, and Docker for version control, issue tracking, continuous...read more

The biggest challenge in developing Azure solution was managing the complexity of the cloud environment.

• Managing the complexity of the cloud environment

• Ensuring scalability and reliability

• Integrating with existing systems

• Securing the solution

• Optimizing cost

• Example: Migrating a legacy application to Azure

Implementing tumbling window in Azure Data Factory without using the feature

• Create a pipeline with a trigger that runs at the desired interval

• Use a lookup activity to retrieve the data for the current window

• Use a foreach activity to iterate over the retrieved data

• Perform the required operations on the data within the foreach activity

• Write the output to the desired destination

My suggestion for implementation in Azure Data Factory v2 is to use the Mapping Data Flow feature.

• Utilize Mapping Data Flow for complex data transformations

• Take advantage of the visual interface to design and debug data flows

• Leverage the built-in data integration capabilities with other Azure services

• Use data flow parameters and expressions for dynamic transformations

• Monitor and optimize data flow performance using dat

MongoDB database algorithms are used for efficient data storage, retrieval, and processing.

• MongoDB uses various algorithms for indexing, sharding, and aggregation.

• Indexing algorithms include B-tree, hash, and text search indexes.

• Sharding algorithms include range-based, hash-based, and zone-based sharding.

• Aggregation algorithms include map-reduce and aggregation pipeline.

• MongoDB also uses algorithms for query optimizati