Day 55 - Week 11 Review + Practice Questions (Messaging)

📅 Date: July 30, 2026 (Thursday)
🎯 Topic: Comprehensive Messaging Services Review
⏱️ Study Time: Approximately 90 minutes

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🎯 Learning Objectives

• Consolidate key concepts of SQS, SNS, Kinesis, Step Functions
• Practice exam scenarios with messaging services

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📖 Week 11 Key Summary

Messaging Service Selection Guide

Order guarantee + exactly-once: SQS FIFO
High throughput + no order needed: SQS Standard
One message to multiple consumers: SNS (fanout)
Real-time data streaming: Kinesis Data Streams
ETL → S3/Redshift: Kinesis Firehose
Complex workflows: Step Functions
GraphQL + Real-time: AppSync