Question 155 of 1,446
Manage a solution that can span multiple database technologies →mediumMultiple SelectObjective-mapped
PCDE Practice Question: Manage a solution that can span multiple database technologies
A Memorystore for Redis instance needs to be scaled to handle increased traffic. Which TWO methods can you use? (Choose 2)
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
✓
Vertically scale by changing the tier to a larger machine type.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase the maxmemory parameter.
Why it's wrong here
maxmemory is not user-configurable in Memorystore; it is automatically set based on tier.
- ✗
Change the eviction policy to allkeys-lru.
Why it's wrong here
Eviction policy does not increase capacity.
- ✓
Vertically scale by changing the tier to a larger machine type.
Why this is correct
Memorystore supports vertical scaling by changing the tier.
- ✓
Horizontally scale by enabling Redis Cluster (clustering) for sharding.
Why this is correct
Redis Cluster provides horizontal scaling.
- ✗
Add read replicas in the same zone.
Why it's wrong here
Read replicas are for high availability, not scaling write capacity.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Last reviewed: Jul 4, 2026
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.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.