Answer: Azure Sentinel

Azure Sentinel is Microsoft's cloud-native SIEM and SOAR solution, designed to collect security data across an organization, detect threats using AI and analytics, and automate responses. The community discussion confirms this with high upvotes (142 upvotes for the mnemonic 'SIEMtinel') and multiple exam confirmations from 2021-2022. While Azure Sentinel was reportedly removed from AZ-900 scope in 2024, the question and historical context clearly identify it as the correct answer. Other options are incorrect: Azure Analysis Services is for analytics, Azure Information Protection is for data classification and protection, and Azure Cognitive Services is for AI capabilities like vision and speech.

Author: LeetQuiz Editorial Team