ExpertGCP PCA · Question 01 · Technical Requirements
CASE STUDY: TechStream Gaming
Company Overview:
TechStream Gaming is a global multiplayer game developer with 500 employees and $100M annual revenue. They recently launched a hit mobile game that is growing rapidly.
Current Technical Environment:
- On-premises data centers in US and EU.
- 200 bare-metal servers running Linux.
- Self-managed MySQL databases (5 TB total) for player profiles and inventory.
- Peak concurrent users: 2 million.
- Current monthly infrastructure cost: $150K.
Business Requirements:
- Reduce infrastructure costs by 40%.
- Support 5x user growth over 2 years.
- Launch in 3 new regions (APAC, SA, Africa).
- Improve deployment speed from 1 week to daily.
Executive Statements:
- CEO: "We need to scale rapidly to compete. Cloud migration is critical."
- CFO: "Cost reduction is paramount. We cannot exceed $100K/month. ROI must be achieved in 18 months."
- CTO: "Our team has limited cloud experience. Reliability is non-negotiable - 99.95% uptime minimum."
Technical Requirements:
- Sub-100ms latency for players globally.
- Real-time analytics on player behavior.
- Seasonal traffic spikes (5x during holidays).
- CI/CD pipeline for daily deployments.
Constraints:
- Migration must complete in 12 months.
- Cannot exceed 4-hour downtime during cutover.
- Dev team: 20 engineers (Java, MySQL).
- Ops team: 5 engineers (limited cloud experience).
QUESTION:
Which database migration strategy should you recommend to meet the global scalability and latency requirements while minimizing operational overhead for the ops team?
CASE STUDY: TechStream Gaming
Company Overview:
TechStream Gaming is a global multiplayer game developer with 500 employees and $100M annual revenue. They recently launched a hit mobile game that is growing rapidly.
Current Technical Environment:
- On-premises data centers in US and EU.
- 200 bare-metal servers running Linux.
- Self-managed MySQL databases (5 TB total) for player profiles and inventory.
- Peak concurrent users: 2 million.
- Current monthly infrastructure cost: $150K.
Business Requirements:
- Reduce infrastructure costs by 40%.
- Support 5x user growth over 2 years.
- Launch in 3 new regions (APAC, SA, Africa).
- Improve deployment speed from 1 week to daily.
Executive Statements:
- CEO: "We need to scale rapidly to compete. Cloud migration is critical."
- CFO: "Cost reduction is paramount. We cannot exceed $100K/month. ROI must be achieved in 18 months."
- CTO: "Our team has limited cloud experience. Reliability is non-negotiable - 99.95% uptime minimum."
Technical Requirements:
- Sub-100ms latency for players globally.
- Real-time analytics on player behavior.
- Seasonal traffic spikes (5x during holidays).
- CI/CD pipeline for daily deployments.
Constraints:
- Migration must complete in 12 months.
- Cannot exceed 4-hour downtime during cutover.
- Dev team: 20 engineers (Java, MySQL).
- Ops team: 5 engineers (limited cloud experience).
QUESTION:
Which database migration strategy should you recommend to meet the global scalability and latency requirements while minimizing operational overhead for the ops team?
Answer options:
Lift and shift the MySQL databases to Compute Engine VMs in multiple regions and set up asynchronous replication.
Migrate the MySQL databases to Cloud SQL for MySQL with cross-region read replicas.
Migrate the MySQL databases to Cloud Spanner using a multi-region configuration.
Migrate the MySQL databases to Cloud Bigtable with multi-cluster routing.
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