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Google PCA Practice Question: Designing a disaster recovery plan for a critical…
A company is designing a disaster recovery plan for a critical application running on Compute Engine with data in Cloud SQL. They require a Recovery Time Objective (RTO) of 1 hour and a Recovery Point Objective (RPO) of 5 minutes. Which THREE actions should they take? (Choose THREE.)
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
✓
Configure a Cloud SQL cross-region replica in the DR region
Cloud SQL replica in another region provides cross-region replication with RPO of seconds to minutes. Managed instance group in the DR region allows quick failover of compute. Cloud DNS with weighted routing can direct traffic to the DR region upon failover, meeting RTO within 1 hour.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Configure a Cloud SQL cross-region replica in the DR region
Why this is correct
Provides near real-time replication meeting RPO of 5 minutes.
- ✗
Enable Cloud SQL automatic storage increase
Why it's wrong here
Does not help with DR; storage increase is for capacity, not failover.
- ✓
Set up Cloud DNS failover with weighted routing
Why this is correct
Can redirect traffic to DR region quickly upon failover.
- ✓
Create a managed instance group in the DR region
Why this is correct
Allows quick scaling of compute resources in DR region for failover.
- ✗
Use Cloud CDN to cache static content globally
Why it's wrong here
CDN is for performance, not disaster recovery.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Cloud DNS
A managed domain name system service that translates human-readable domain names into IP addresses, enabling reliable and scalable network routing in cloud environments.
Key term
Weighted routing
Weighted routing is a traffic management technique that distributes network requests across multiple servers or paths according to assigned numerical weights, allowing for controlled, uneven load distribution.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This PCA 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 PCA exam.