Medium1 markMultiple Choice
Subtask 1.3: Network/Storage/ComputeCloud Load BalancingCloud ArmorCloud CDNNetworking
This question is part of a case study — click to read the full scenario(Case 01)

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?

GCP PCA · Question 05 · Network/Storage/Compute

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:
How should you design the global network architecture to ensure sub-100ms latency for players across all regions while protecting against DDoS attacks?

Answer options:

A.

Deploy regional Network Load Balancers in each region and use Cloud DNS for geo-routing.

B.

Deploy a Global HTTP(S) Load Balancer with Cloud CDN and Cloud Armor enabled.

C.

Use Cloud VPN to connect the new regions to the existing US and EU data centers.

D.

Deploy an Internal TCP/UDP Load Balancer with VPC Service Controls.

How to approach this question

Look for the GCP service that provides global routing (Global LB), caching for latency (CDN), and DDoS protection (Cloud Armor).

Full Answer

B.Deploy a Global HTTP(S) Load Balancer with Cloud CDN and Cloud Armor enabled.✓ Correct
Deploy a Global HTTP(S) Load Balancer with Cloud CDN and Cloud Armor enabled.
Google Cloud's Global HTTP(S) Load Balancer uses Anycast IP to route user traffic to the closest healthy backend, minimizing latency. Integrating Cloud Armor directly onto the load balancer provides edge defense against DDoS attacks, fulfilling the technical requirements.

Common mistakes

Choosing DNS geo-routing (Option A) is a common legacy approach, but it lacks the integrated edge security (Cloud Armor) required by the scenario.

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