You manage on-premises networks and Azure virtual networks.
You need a secure private connection between the on-premises networks and the Azure virtual networks. The connection must offer a redundant pair of cross connections to provide high availability.
What should you recommend?
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A. B. C. D.A
To establish a secure private connection between on-premises networks and Azure virtual networks, there are several options available, including ExpressRoute, virtual network peering, and VPN Gateway.
Azure ExpressRoute is a dedicated, private connection between on-premises networks and Azure data centers. It provides a reliable and high-throughput connection with consistent latencies and dedicated bandwidth for data transfer between on-premises infrastructure and Azure. It also offers redundant connections to ensure high availability.
Azure Load Balancer is not an appropriate solution for this requirement as it is used for distributing traffic between multiple virtual machines within a virtual network or between different virtual networks.
Virtual network peering is another option that allows connecting two virtual networks within Azure, allowing them to communicate directly with each other using private IP addresses. This option does not provide a dedicated, private connection to the on-premises network, and redundancy has to be set up manually.
VPN Gateway is a virtual network gateway that establishes a secure, encrypted connection between the on-premises infrastructure and Azure virtual networks over the internet. VPN Gateway also provides high availability through a redundant pair of cross connections.
Therefore, the recommended solution for this scenario is Option A: ExpressRoute. It provides a secure and dedicated connection with consistent and reliable connectivity, as well as redundancy for high availability.