Managing Implementation and Ensuring Solution and Operations Reliability →hardMultiple SelectObjective-mapped
Google PCA Practice Question: Managing Implementation and Ensuring Solution and Operations Reliability
A company has a Cloud Spanner multi-region configuration serving a global user base. They observe increased latency during regional outages. They want to improve read availability and reduce read latency across regions. Which TWO actions should they take?
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 multi-region instance with additional read replicas in key regions
Cloud Spanner multi-region configurations (e.g., nam3) provide automatic failover and read replicas. Adding read replicas in multiple regions can reduce read latency. Using leader regions and follower reads can improve read performance. Choosing a configuration with more read-only replicas (like nam3) increases availability. Reducing number of nodes would reduce capacity, not improve latency. Adjusting commit timestamp settings is for write performance, not read availability.
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 multi-region instance with additional read replicas in key regions
Why this is correct
Additional read replicas improve read availability and reduce latency.
- ✗
Adjust the commit timestamp settings for lower latency
Why it's wrong here
Commit timestamp settings affect write latency, not read availability.
- ✗
Reduce the number of nodes to decrease latency
Why it's wrong here
Reducing nodes decreases capacity and may increase latency, not decrease.
- ✓
Enable leader regions and follower reads
Why this is correct
Leader regions and follower reads allow reads from closest replica, reducing latency.
- ✗
Use a single-region configuration to simplify failover
Why it's wrong here
Single-region does not provide multi-region availability.
Go deeper
Related to this question
Learn chapter
Introduction to Google Cloud Platform
Key term
Multi-region
Multi-region refers to a deployment strategy where IT resources, applications, or data are hosted in multiple geographic locations to improve availability, disaster recovery, and performance.
Key term
Regional
Regional refers to a deployment strategy where cloud resources are distributed across multiple geographic areas to improve availability, reduce latency, and meet compliance requirements.
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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.