AZ-700 Question 88
Single answerYour company needs to connect multiple on-premises locations to an Azure Virtual Network. The network team requires dynamic routing to automatically adjust routes as new subnets are added or changed in both Azure and on-premises sites. They also plan to enable BGP (Border Gateway Protocol) for more flexible route updates. Each on-premises firewall supports both policy-based and route-based configurations. Which VPN connection type should you recommend for this scenario?
- A
Configure a policy-based VPN for each site to keep route management simple.
- B
Use a route-based VPN with BGP enabled to allow dynamic routing for all sites.
- C
Enable policy-based VPN for dynamic BGP peering between Azure and on-premises devices.
- D
Mix policy-based and route-based VPN types to handle multiple sites in a single connection.
Show answer and explanation
Correct answer: B
Explanation
Azure documentation recommends using route-based VPNs when you require dynamic routing or BGP for multiple connections. Policy-based VPNs are typically limited to simpler, static routing scenarios. Refer to Microsoft's official documentation (https://learn.microsoft.com/azure/vpn-gateway/vpn-gateway-about-vpn-devices) for guidance on choosing the appropriate VPN type.
- A. Incorrect.
Option 1: Incorrect. Policy-based VPNs can be simpler but they do not support BGP or dynamic routing well. They rely on static routes that require more manual updates.
- B. Correct.
Option 2: Correct. Route-based VPNs with BGP allow dynamic route updates, making them ideal for environments with multiple sites or frequent routing changes.
- C. Incorrect.
Option 3: Incorrect. Policy-based VPNs do not inherently support BGP; they are typically limited to static route definitions, which contradicts the scenario� requirement for dynamic routing with BGP.
- D. Incorrect.
Option 4: Incorrect. Mixing policy-based and route-based VPNs can complicate the configuration. When BGP and dynamic routing are priorities, a purely route-based deployment is more effective.