Which Azure service specifically facilitates monitoring and security for applications and services running in Azure?

The correct choice for facilitating monitoring and security for applications and services running in Azure is Azure Sentinel. This service is a cloud-native security information and event management (SIEM) solution that provides intelligent security analytics across your enterprise. It integrates various data sources, allowing organizations to detect and respond to threats in real time.

Azure Sentinel enables organizations to gather logs and performance metrics from various data sources, including Azure services and third-party tools. It uses machine learning to identify anomalies and to automate responses, improving the security posture of applications and services within Azure.

This service is particularly effective because it unifies security data across the enterprise, which enhances visibility into the security landscape and allows for comprehensive threat detection and investigation. Through its security orchestration capabilities, Azure Sentinel empowers security teams to respond swiftly to incidents, thereby enhancing the overall security management within the Azure environment.

Other options cover different aspects of Azure services; for instance, Azure Security Center primarily focuses on managing security for Azure resources and providing recommendations for security improvements, while Azure Active Directory is focused on identity management and access control. Azure Firewall is a network security service that protects Azure Virtual Network resources but does not offer the extensive monitoring capabilities that Azure Sentinel provides.