{"blocks": [{"key": "3c1e0a9d", "text": "Question", "type": "header-two", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}, {"key": "ec7d3f3d", "text": "Design an end-to-end advertisement clickstream ingestion and analytics platform that ingests events through Kafka, stores raw data in S3, and supports interactive queries with Presto. Cover scaling strategies, failover mechanisms, and the trade-offs between real-time and batch processing.", "type": "unstyled", "depth": 0, "inlineStyleRanges": [], "entityRanges": [], "data": {}}], "entityMap": {}}