Exam AZ-305 topic 4 question 20 discussion

Correct. Layer 3 connectivity Microsoft uses BGP, an industry standard dynamic routing protocol, to exchange routes between your on-premises network, your instances in Azure, and Microsoft public addresses. We establish multiple BGP sessions with your network for different traffic profiles. More details can be found in the ExpressRoute circuit and routing domains article. https://docs.microsoft.com/en-us/azure/expressroute/expressroute-introduction

1. Routing from the virtual networks to the on-premises location must be configured by using: b. Border Gateway Protocol (BGP) To configure routing between the Azure virtual networks and the on-premises locations, you should use Border Gateway Protocol (BGP). BGP is a dynamic routing protocol that enables automatic route updates between ExpressRoute circuits and the on-premises sites. 2. The automatic routing configuration following a failover must be handled by using: a. Border Gateway Protocol (BGP) BGP can also handle automatic routing configuration in the event of a failover. It can dynamically detect when a site fails and automatically reroute traffic to the other available site. This ensures that traffic from the workloads on the virtual networks to the internet is rerouted to the other on-premises site if one site fails.

CORRECT

BGP: BGP is well-suited for this scenario because it supports dynamic routing and failover. It can automatically reroute traffic if an on-premises site becomes unavailable, ensuring that outbound traffic from the virtual networks is always routed through the closest available site.

The way to remember is if routing involving multiple networks, then BGP . Routing within a n/w => User defined routing

Puzzled why you'd want to route your internet bound traffic, from the cloud, via your on-prem, given that it could hop out to the internet directly from data centre. I suppose you might be tracking/logging some aspect of the outbound traffic on-prem for some reason, but the actual use case seems unlikely.

this question should be in CCNA exam not here.

The given answer is correct. Its BGP for both

Lol why is networking question here

Routing from the virtual networks to the on-premises locations must be configured by using: b. Border Gateway Protocol (BGP) The automatic routing configuration following a failover must be handled by using: a. Border Gateway Protocol (BGP)

Exam Question 12/28/2022.

for the 1st question, I think it should be "User Defined" If multiple routes contain the same address prefix, Azure selects the route type, based on the following priority: 1- User-defined route 2- BGP route 3- System route https://learn.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview

The given answer is correct. The first question can also be implemented by UDR in a simple environment as given. But in practice, with the consideration of scalability, BGP should be the first choice.

I think it's User-defined route and BGP https://docs.microsoft.com/en-us/azure/virtual-network/virtual-networks-udr-overview#how-azure-selects-a-route