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Difficulty: MediumAzure Virtual Networks, ExpressRoute, and VPN Gateway

A university needs to establish a hybrid network connection between its local campus server room and Azure. The university requires a connection that provides dedicated bandwidth up to 100 Gbps100\text{ Gbps}, low latency, and bypasses the public internet entirely. Which Azure service should the university implement to meet these requirements?

  1. A
    Azure VPN Gateway (Site-to-Site)
  2. B
    Azure Virtual Network Peering
  3. Azure ExpressRouteAnswer
  4. D
    Azure Bastion

Answer

Azure ExpressRoute
Azure ExpressRoute is the correct service because it provides a private, dedicated physical connection from an on-premises network to Azure, bypassing the public internet completely. This meets the requirements for low latency and high bandwidth up to 100 Gbps100\text{ Gbps}.

Step-by-Step Solution

1
Analyze the connectivity requirements: hybrid connection (on-premises campus to Azure), high bandwidth (up to 100 Gbps100\text{ Gbps}), low latency, and bypassing the public internet entirely.
Identify that the connection must be a private, dedicated physical circuit rather than a connection over the public internet.
This rules out any internet-based hybrid connections such as Site-to-Site VPN.
2
Evaluate the available Azure networking services against these criteria.
Determine that ExpressRoute provides dedicated private connections bypassing the public internet, whereas VPN Gateway uses the public internet, VNet Peering connects internal Azure networks, and Bastion manages administrative VM access.
This identifies the service that satisfies all the specified requirements.

Key Concept

Azure ExpressRoute provides dedicated, private hybrid connectivity that bypasses the public internet.
Estimated Time:1m 0s
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Topics

Azure Virtual Networks, ExpressRoute, and VPN Gateway

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