Wipro Interview Questions and Answers

Delta Lake is an open-source storage layer that brings ACID transactions to Apache Spark and big data workloads.

• Delta Lake provides ACID transactions, scalable metadata handling, and unifies streaming and batch data processing.

• It stores data in Parquet format and uses a transaction log to keep track of all the changes made to the data.

• Delta Lake architecture includes a storage layer, a transaction log, and a metadata layer for managing schema evolution and data versioning.

Blob storage is for unstructured data, while Data Lake is for structured and unstructured data with metadata.

• Blob storage is optimized for storing large amounts of unstructured data like images, videos, and backups.

• Data Lake is designed to store structured and unstructured data with additional metadata for easier organization and analysis.

• Blob storage is typically used for simple storage needs, while Data Lake is used for more complex data processing and analytics.

• Data Lake a...read more

Mounting process in Databricks allows users to access external data sources within the Databricks environment.

• Mounting allows users to access external data sources like Azure Blob Storage, AWS S3, etc.

• Users can mount a storage account to a Databricks File System (DBFS) path using the Databricks UI or CLI.

• Mounted data can be accessed like regular DBFS paths in Databricks notebooks and jobs.

Two true facts about myself

• I am fluent in three languages: English, Spanish, and French

• I have traveled to over 20 countries, including Japan, Australia, and Brazil

Developing a financial system requires a thorough understanding of financial processes and technologies.

• Identify the requirements of the financial system

• Design the system architecture and select appropriate technologies

• Develop and test the system

• Implement the system and provide training and support

• Continuously monitor and improve the system

• Ensure compliance with regulatory requirements

• Examples of financial systems include accounting software, payment processing systems, and t...read more