Professional Cloud ArchitectDemo

By Google · Question Mode

QuestionQ68

Designing and planning a cloud solution architecture

You are deploying an application to Google Cloud as part of a system. The Google Cloud application must communicate, over a private network, with applications in a non-Google Cloud environment. The anticipated average throughput is 200 kbps.

The business requires:

  • 99.99% system availability
  • Cost optimization

You need to design connectivity between the locations to satisfy these business requirements. What should you provision?

  • A An HA Cloud VPN gateway connected with two tunnels to an on-premises VPN gateway.
  • B A Classic Cloud VPN gateway connected with two tunnels to an on-premises VPN gateway.
  • C Two HA Cloud VPN gateways connected to two on-premises VPN gateways. Configure each HA Cloud VPN gateway to have two tunnels, each connected to different on-premises VPN gateways.
  • D A Classic Cloud VPN gateway connected with one tunnel to an on-premises VPN gateway.
Explanation

HA VPN can provide a 99.99% availability SLA when VPN tunnels are configured on both interfaces of the HA VPN gateway. A pair of tunnels to the on-premises peer provides the required redundant connectivity with fewer billed gateway and tunnel resources than deploying two HA VPN gateways and four tunnels. Classic VPN provides a 99.9% SLA, so it does not meet the availability requirement.

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