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Domain 2: Managing and Provisioning a Solution InfrastructureGKEMulti Cluster IngressGlobal Architecture
This question is part of a case study — click to read the full scenario(Case 01)

CASE STUDY: TechStream Gaming

Overview: 500 employees, $100M revenue. On-prem US/EU, 200 servers, 5TB MySQL. 2M peak users, $100K/mo cost.
Business: Reduce cost 40%, 5x growth, launch APAC/SA/Africa, daily deployments.
Executives:

  • CEO: "Scale rapidly to compete. Cloud is critical."
  • CFO: "Cost reduction paramount. Max $100K/mo. ROI in 18 months."
  • CTO: "Team has limited cloud experience. 99.95% uptime non-negotiable."
    Tech: <100ms latency globally, real-time analytics, 5x seasonal spikes, EU data residency, DDoS protection, CI/CD.
    Constraints: 12-month migration, 4hr max downtime, 20 devs (Java/MySQL), 5 ops (limited cloud), $2M budget.

Which migration strategy should you recommend for the core gaming application to meet the business and technical requirements?

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GCP PCA · Question 02 · Domain 2: Managing and Provisioning a Solution Infrastructure

CASE STUDY: TechStream Gaming

Overview: 500 employees, $100M revenue. On-prem US/EU, 200 servers, 5TB MySQL. 2M peak users, $100K/mo cost.
Business: Reduce cost 40%, 5x growth, launch APAC/SA/Africa, daily deployments.
Executives:

  • CEO: "Scale rapidly to compete. Cloud is critical."
  • CFO: "Cost reduction paramount. Max $100K/mo. ROI in 18 months."
  • CTO: "Team has limited cloud experience. 99.95% uptime non-negotiable."
    Tech: <100ms latency globally, real-time analytics, 5x seasonal spikes, EU data residency, DDoS protection, CI/CD.
    Constraints: 12-month migration, 4hr max downtime, 20 devs (Java/MySQL), 5 ops (limited cloud), $2M budget.

To meet the sub-100ms global latency requirement and handle seasonal spikes, how should you configure the compute architecture?

Answer options:

A.

Deploy a single GKE cluster in us-central1 and use Cloud CDN to cache all game traffic.

B.

Deploy multi-region GKE clusters and use Multi Cluster Ingress to route users to the closest region.

C.

Use Compute Engine managed instance groups in a single region with aggressive autoscaling policies.

D.

Deploy the application to Cloud Run in multiple regions and use Cloud DNS for geo-routing.

How to approach this question

Identify the requirement for global low latency for dynamic traffic. This requires compute resources in multiple regions.

Full Answer

B.Deploy multi-region GKE clusters and use Multi Cluster Ingress to route users to the closest region.✓ Correct
To achieve sub-100ms latency globally for dynamic gaming traffic, compute resources must be distributed across multiple regions. GKE with Multi Cluster Ingress allows you to deploy clusters in US, EU, APAC, SA, and Africa, routing users to the nearest healthy cluster via Google's premium network.

Common mistakes

Assuming Cloud CDN (A) can solve latency for dynamic multiplayer gaming traffic.
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