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    PracticeGCP Professional Cloud ArchitectGCP Professional Cloud Architect Practice Exam 1Question 19
    Medium1 markMultiple Choice
    Subtask 4.3: Resilience ProceduresDisaster RecoveryCloud Load BalancingRTO
    This question is part of a case study — click to read the full scenario(Case 16)

    CASE STUDY: HealthCare360

    Company Overview: HealthCare360 provides EHR systems to hospitals in NA and EU.
    Current Environment: Isolated on-prem deployments. Fragmented data.
    Business Requirements: Centralize EHR in cloud. Enable cross-hospital research. Ensure compliance.
    Executive Statements: CEO: 'Transforming to SaaS.' CFO: 'Need cost attribution per tenant.' CSO: 'Zero compromise on HIPAA/GDPR.'
    Technical Requirements: Multi-region active-active deployment. Microservices on GKE. End-to-end encryption (CMEK). Strict network perimeters.
    Constraints: Zero data loss (RPO=0). RTO < 15 minutes. HIPAA (US) and GDPR (EU) compliance.

    QUESTION:
    To meet the requirement for a multi-region active-active deployment with an RPO of 0, which TWO database architectures could you use? (Select TWO)

    View full case study page →

    GCP PCA · Question 19 · Resilience Procedures

    CASE STUDY: HealthCare360

    Company Overview: HealthCare360 provides EHR systems to hospitals in NA and EU.
    Current Environment: Isolated on-prem deployments. Fragmented data.
    Business Requirements: Centralize EHR in cloud. Enable cross-hospital research. Ensure compliance.
    Executive Statements: CEO: 'Transforming to SaaS.' CFO: 'Need cost attribution per tenant.' CSO: 'Zero compromise on HIPAA/GDPR.'
    Technical Requirements: Multi-region active-active deployment. Microservices on GKE. End-to-end encryption (CMEK). Strict network perimeters.
    Constraints: Zero data loss (RPO=0). RTO < 15 minutes. HIPAA (US) and GDPR (EU) compliance.

    QUESTION:
    To achieve the RTO (Recovery Time Objective) of < 15 minutes in the event of a regional failure, how should traffic be routed?

    Answer options:

    A.

    Update Cloud DNS records manually to point to the backup region.

    B.

    Use a Global External HTTP(S) Load Balancer to automatically route traffic to the healthy region.

    C.

    Deploy a Cloud VPN tunnel between regions to reroute traffic internally.

    D.

    Use a Regional Network Load Balancer and rely on BGP route propagation.

    How to approach this question

    Identify the load balancing solution that provides instant cross-region failover.

    Full Answer

    B.Use a Global External HTTP(S) Load Balancer to automatically route traffic to the healthy region.✓ Correct
    Use a Global External HTTP(S) Load Balancer to automatically route traffic to the healthy region.
    A Global External HTTP(S) Load Balancer uses a single Anycast IP address. It constantly monitors the health of backend services (like GKE clusters) across multiple regions. If an entire region goes down, the load balancer automatically and almost instantly routes user traffic to the healthy region, ensuring an RTO well under 15 minutes.

    Common mistakes

    Relying on DNS failover, which is heavily impacted by client-side caching and TTLs.
    Question 18All questionsQuestion 20

    Practice the full GCP Professional Cloud Architect Practice Exam 1

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