Free Microsoft Azure AZ-700 Actual Exam Questions - Question 5 Discussion

C assigning a user-defined route on Vnet1’s GatewaySubnet lets Vnet2 and Vnet3 use its gateway properly.

It’s C for me. Since you want the default route on Vnet2 and Vnet3 to point through Vnet1’s gateway, assigning a user-defined route to the GatewaySubnet in Vnet1 that directs traffic accordingly makes sense. D seems off because GatewaySubnet in Vnet2 and Vnet3 likely can’t have custom routes applied, as others mentioned. BGP is great for dynamic routing, but if the question expects a manual default route setup, then C fits better here. Route filters (A) don’t really configure default routes, so that leaves C as the most reasonable choice.

D imo assigning routes directly to GatewaySubnet in Vnet2 and Vnet3 seems off since that subnet is reserved for gateways. User-defined routes usually go on regular subnets, so this might not work as expected.

B The question implies automatic route sharing between VNets, which BGP handles well. User-defined routes on GatewaySubnet seem off since that subnet is reserved for gateways, so B makes more sense here.

It’s B because BGP route exchange automatically shares default routes between VNets with gateways, which fits better than manually setting user-defined routes on GatewaySubnet.

C/D? GatewaySubnet usually can’t have user-defined routes, so D feels wrong. C might work if the route directs traffic through Vnet1’s gateway, but not sure if that’s allowed on GatewaySubnet either.

This is tricky but user-defined routes go on subnets, not GatewaySubnet specifically. D sounds off because you usually don't assign routes there. I think C's more accurate since it's about routing through Vnet1's GatewaySubnet. So, C.

D