Microsoft Azure Administrator (AZ104) Practice Exam

What is the impact of enabling BGP on a VPN gateway?

1. It allows dynamic routing for VPN connections

2. It increases the security of the VPN

3. It disables point-to-site connections

4. It restricts the usage of public IPs

The correct answer is: It allows dynamic routing for VPN connections

Enabling Border Gateway Protocol (BGP) on a VPN gateway allows for dynamic routing, which is a significant advantage for managing VPN connections. With BGP, the VPN gateway can dynamically learn and advertise routes to different networks, thus allowing for automatic updates in the routing table based on the current state of the network. This capability is particularly beneficial in scenarios where network topologies may change frequently. Dynamic routing helps in automatically adjusting to network changes without manual intervention, which can enhance connectivity and reduce the risk of downtime. Additionally, BGP allows for exchange of routing information across different autonomous systems, making it highly suitable for complex network environments or connections that involve multiple sites and cloud services. The other options do not accurately reflect the primary function of BGP. While they may address other aspects of VPNs, they do not pertain directly to the dynamic routing capabilities that BGP provides. For instance, BGP does not inherently increase security, as it is primarily focused on routing; it does not disable point-to-site connections, which can still operate independently of BGP settings; and it does not restrict the usage of public IPs but rather enables the efficient management of IP routing, whether public or private.