3.1.2. Azure Virtual Network Manager

💡 First Principle: Virtual Network Manager provides centralized network management at scale. Instead of configuring each VNet individually, you can apply connectivity and security configurations across multiple VNets.

Scenario: Your organization has 50 virtual networks across multiple subscriptions. Ensuring consistent security policies across all of them is administratively complex.

Key Capabilities

• Network Groups: Dynamic collections of VNets based on conditions
• Connectivity configurations: Hub-and-spoke or mesh topologies
• Security admin rules: Centralized NSG-like rules across VNets
• Deployments: Apply configurations to specific regions

⚠️ Exam Trap: Thinking Virtual Network Manager replaces NSGs. Security admin rules complement NSGs—they're evaluated before NSG rules and can enforce baseline security that individual NSGs cannot override.