Expedia

Explain the trade-offs between batch and real-time data processing. Provide examples of when each is appropriate.

Share experiences of quickly adapting to new technologies and tools in evolving project requirements.

Design a solution to generate unique device names from a list of IoT devices.

Implement an algorithm to find the longest ordered subsequence of vowels in a given string.

Consolidate hotel reviews and create a dashboard. Design a data model for the reviews.

Review Kafka fundamentals and concepts.

Conceptualize and design a real-time streaming data pipeline end-to-end.

Explain Apache Spark fundamentals, OOM scenarios and their resolutions, optimization techniques, strategies for optimized joins, and handling data skewness with Key Salting techniques.