You recently launched a new product to the US market. You currently have two Bigtable clusters in one US region to serve all the traffic. Your marketing team is planning an immediate expansion to APAC

Question

Options

• AMaintain a target of 23% CPU utilization by locating:
• BMaintain a target of 23% CPU utilization by locating:
• CMaintain a target of 35% CPU utilization by locating:
• DMaintain a target of 35% CPU utilization by locating:

• A
  9% (3)
• B
  12% (4)
• C
  6% (2)
• D
  73% (24)

Explanation

Google recommends targeting 35% CPU utilization for Bigtable clusters that use multi-cluster replication. This headroom accommodates traffic spikes, rebalancing operations, and cross-region replication overhead without degrading performance. At 23% (options A and B), you are over-provisioning unnecessarily. The correct architecture for this scenario is to maintain at least two clusters in the US region (for existing HA) and add at least one cluster in an APAC region (for geographic expansion), all targeting 35% CPU. This multi-cluster replication approach ensures both regional availability for APAC users and high availability per Google's recommended practices for Bigtable.

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