Microsoft Azure Solutions Architect Expert AZ-305 Practice Question
Your company has two datacenters located in New York and Seattle. Each datacenter hosts Cisco edge routers that support BGP and 10-Gbps MPLS links. You plan to migrate latency-sensitive workloads to Azure virtual networks in East US. The connectivity design must: 1) use private, low-latency links, 2) provide at least 10 Gbps today and scale to 20 Gbps next year without replacing on-premises routers, 3) guarantee 99.95 percent uptime with automatic routing failover. Which Azure networking solution should you recommend?
Use Azure Application Gateway with Web Application Firewall in each region and establish site-to-site VPN tunnels to the gateways.
Create an Azure Virtual WAN and connect both datacenters to dual VpnGw5 hubs using IPSec with BGP.
Deploy Standard VPN gateways in an active-active configuration and enable BGP over IPSec tunnels.
Provision two 10-Gbps Azure ExpressRoute Standard circuits in separate peering locations and enable ExpressRoute FastPath.
ExpressRoute delivers private, dedicated connectivity that bypasses the public Internet and can be provisioned in circuit sizes from 50 Mbps to 100 Gbps. Deploying two separate circuits in different peering locations satisfies the 99.95 percent SLA and provides automatic routing failover because each circuit is backed by dual Microsoft edge routers. FastPath removes the data path through the ExpressRoute gateway, reducing latency for virtual-network traffic. VPN gateways, even at the VpnGw5 tier or in Virtual WAN, are limited to about 10 Gbps and traverse the public Internet, so they cannot meet the future 20 Gbps and latency requirements. Application Gateway is an L7 load balancer and cannot terminate site-to-site connectivity.
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Microsoft Azure Solutions Architect Expert AZ-305
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