You are increasing your usage of Cloud VPN between on-premises and GCP, and you want to support more traffic than a single tunnel can handle. You want to increase the available bandwidth using Cloud…

Question

Options

• ADouble the MTU on your on-premises VPN gateway from 1460 bytes to 2920 bytes.
• BCreate two VPN tunnels on the same Cloud VPN gateway that point to the same destination VPN
• CAdd a second on-premises VPN gateway with a different public IP address.
• DAdd a second Cloud VPN gateway in a different region than the existing VPN gateway.

• A
  9% (3)
• B
  6% (2)
• C
  71% (24)
• D
  15% (5)

Explanation

Each Cloud VPN tunnel supports a maximum of 3 Gbps. To increase bandwidth beyond a single tunnel, you need multiple tunnels using ECMP (Equal-Cost Multi-Path) routing. ECMP distributes traffic across multiple tunnels, but only when those tunnels connect to different peer (on-premises) IP addresses. Adding a second on-premises VPN gateway with a distinct public IP allows you to create a second tunnel and effectively double throughput. Option A is wrong because MTU affects packet size, not aggregate bandwidth. Option B is wrong because two tunnels pointing to the same destination IP cannot use ECMP - GCP treats them as redundant, not load-balanced. Option D is wrong because a VPN gateway in a different region handles different traffic paths and does not add capacity to the existing connection.

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