Soru

Zorluk: ZorDesigning Infrastructure for Technical Requirements and High Availability

A global logistics and telematics enterprise is architecting a fleet management platform on Google Cloud to ingest and process real-time telemetry from over 500,000 active vehicles. The system requires continuous high availability across regional outages with a recovery point objective (RPO) of zero and a recovery time objective (RTO) of near-zero for transactional write operations. Furthermore, the hybrid networking architecture must connect on-premises data centers to Google Cloud with dedicated physical connections capable of sustaining sustained throughput exceeding 10 Gbps while guaranteeing a 99.99% availability Service Level Agreement (SLA). Which two architectural strategies should the Cloud Architect implement to satisfy these technical requirements? (Select TWO)

  1. Provision a Cloud Spanner multi-region instance configuration across target regions to support globally consistent, highly available relational data writes with zero RPO.Cevap
  2. Establish Dedicated Interconnect with redundant circuits provisioned across two distinct colocation facilities (edge availability domains) to meet the 99.99% availability SLA.Cevap
  3. C
    Deploy a Cloud SQL for PostgreSQL primary instance with cross-region read replicas and automated script promotion during regional failover events.
  4. D
    Configure an HA VPN gateway with multiple active-active IPsec tunnels across dual Cloud Routers to deliver 10 Gbps throughput with a 99.99% SLA.
  5. E
    Configure Application Load Balancer health checks to execute synchronous database read-write queries on backend endpoints to validate end-to-end service viability.

Cevap

The platform requires deploying a Cloud Spanner multi-region instance configuration to guarantee multi-region strong consistency with zero RPO, along with establishing Dedicated Interconnect across redundant colocation facilities to satisfy the 10 Gbps throughput requirement and 99.99% connectivity SLA.
To satisfy zero RPO and multi-region high availability for transactional database writes, Cloud Spanner multi-region instances use Paxos consensus and TrueTime to perform synchronous cross-region replication. For hybrid networking, achieving a 99.99% SLA with high throughput (>10 Gbps) requires Dedicated Interconnect deployed across two independent colocation facilities.

Adım Adım Çözüm

1
Analyze storage and database requirements for RPO=0 and high availability across multi-region write workloads.
Cloud Spanner multi-region configurations provide global synchronous replication using TrueTime, satisfying RPO=0 and high availability across regional failures.
Asynchronous database replication options like Cloud SQL cross-region read replicas introduce replication lag, violating the strict RPO=0 constraint.
2
Analyze hybrid connectivity requirements for high bandwidth (>10 Gbps) and 99.99% SLA availability.
Dedicated Interconnect with redundant circuits in two colocation facilities provides the required 10 Gbps+ bandwidth capacity and qualifies for the 99.99% uptime SLA.
HA VPN has a 3 Gbps per-tunnel bandwidth limit and is less optimal for high-throughput enterprise connections requiring dedicated physical infrastructure.

Anahtar Kavram

Multi-region high availability architectures using Cloud Spanner and 99.99% SLA Dedicated Interconnect topology.
Tahmini Süre:2m 0s
Bu soruyu puanla