AZ-700 Question 127
Select 2Your organization has two on-premises data centers in different regions. Each site has an ExpressRoute circuit connected to Azure using private peering to host critical workloads in separate Azure virtual networks. You want to enable direct connectivity between the two on-premises data centers using Microsoft� backbone network and also optimize the data path for traffic from on-premises to your Azure VMs. Which two configurations should you implement to achieve these requirements with minimal operational overhead?
- A
Enable FastPath on both ExpressRoute circuits for optimized data path to Azure VMs.
- B
Configure VNet peering between the two Azure virtual networks for cross-site traffic.
- C
Configure ExpressRoute Global Reach to link the two on-premises data centers via the Azure backbone.
- D
Implement ExpressRoute Direct in both data centers with dedicated high-capacity ports.
Show answer and explanation
Correct answers: A, C
Explanation
Enabling FastPath ensures that data-plane traffic from on-premises to Azure VMs avoids additional gateway hops, thus improving performance. Meanwhile, ExpressRoute Global Reach interconnects on-premises locations directly through the Microsoft network, allowing data centers in different regions to communicate without additional tunnels or peering constructs. These two features together accomplish the stated requirements with minimal overhead. For more details, refer to Microsoft� documentation on ExpressRoute Global Reach (https://docs.microsoft.com/azure/expressroute/expressroute-global-reach-overview) and FastPath (https://docs.microsoft.com/azure/expressroute/expressroute-fastpath).
- A. Correct.
Correct. FastPath bypasses the ExpressRoute gateway for data plane traffic (not control plane), offering lower latency and higher performance for on-premises traffic going to Azure VMs. This reduces the operational overhead while optimizing data paths.
- B. Incorrect.
Incorrect. VNet peering enables connectivity within Azure between virtual networks, but it does not automatically interconnect the on-premises data centers through Azure. VNet peering only helps with Azure-to-Azure traffic.
- C. Correct.
Correct. ExpressRoute Global Reach allows on-premises networks connected to different ExpressRoute circuits to communicate with each other by leveraging the Microsoft backbone. This enables full cross-connectivity between the two on-premises data centers.
- D. Incorrect.
Incorrect. ExpressRoute Direct provides physical ports directly from Microsoft� edge for simplicity and high capacity, but it is not strictly necessary if you already have working ExpressRoute circuits in each location. Simply enabling Global Reach would achieve the desired connectivity without incurring the added complexity and cost of direct, dedicated ports.