Question 1,346 of 1,446
PCDE Practice Question: Manage a solution that can span multiple database technologies
Your Cloud Bigtable instance is experiencing high latency for certain row key ranges. You suspect a hotspot is developing. Which Google Cloud tool should you use to visualize and diagnose the hotspot?
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
✓
Key Visualiser
Key Visualiser is a tool specifically designed for Bigtable to identify hotspots and access patterns by visualizing row key distribution and traffic. It helps pinpoint uneven load distribution.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Key Visualiser
Why this is correct
Key Visualiser is the correct tool for detecting hotspots in Bigtable.
- ✗
Cloud Monitoring dashboard to check CPU utilization per node
Why it's wrong here
CPU utilization shows overall load but does not pinpoint specific row key ranges causing hotspots.
- ✗
Bigtable's built-in 'hotspot detection' alert in Cloud Monitoring
Why it's wrong here
While Bigtable has alerts, Key Visualiser provides the detailed visualization needed for diagnosis.
- ✗
Cloud Logging to review request logs and identify slow queries
Why it's wrong here
Logs can show slow operations but are not designed for hotspot visualization.
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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.
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