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PCDE Practice Question: Design innovative, scalable, and highly available cloud database solutions

A small business runs a MySQL OLTP database for their inventory management system. They need high availability with automatic failover and regional disaster recovery. Which Google Cloud database service meets these requirements with minimal operational overhead?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

Cloud SQL with HA and cross-region read replicas

Cloud SQL for MySQL with high availability (HA) configuration provides automatic failover within a region and can be configured with cross-region replicas for disaster recovery.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Cloud Spanner

    Why it's wrong here

    Overkill for a small inventory system; also more expensive and complex.

  • Cloud Bigtable

    Why it's wrong here

    Not suitable for relational inventory data.

  • Cloud SQL with HA and cross-region read replicas

    Why this is correct

    Cloud SQL HA provides automatic failover, and cross-region replicas enable disaster recovery.

  • Compute Engine with self-managed MySQL

    Why it's wrong here

    Higher operational overhead; Cloud SQL is managed.

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Written by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

This PCDE practice question is part of Courseiva's free Google Cloud certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCDE exam.