You are in the early stages of planning a migration to GCP. You want to test the functionality of your hybrid cloud design before you start to implement it in production. The design includes…

Question

Options

• ACloud VPN
• B50-Mbps Partner VLAN attachment
• CDedicated Interconnect with a single VLAN attachment
• DDedicated Interconnect, but don't provision any VLAN attachments

• A
  79% (26)
• B
  6% (2)
• C
  3% (1)
• D
  12% (4)

Explanation

Cloud VPN (A) is the correct choice because it is the lowest-cost connectivity option, can be provisioned within minutes over the existing internet connection, and supports private IP routing between Compute Engine instances and on-premises servers. Since the on-premises servers already have internet access, no new physical infrastructure is needed. The test must be completed in 24 hours, which rules out Dedicated Interconnect (weeks to provision physical cross-connects) and Partner Interconnect VLAN attachments (also require lead time and involve ongoing costs). A 50-Mbps Partner VLAN attachment (B) and Dedicated Interconnect (C, D) are both expensive and slow to provision. Option D doesn't even establish connectivity without VLAN attachments.

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