CV0-004 Troubleshooting Practice Question
A company is deploying a critical application in the cloud and needs to ensure that it can automatically recover from an intent—a failure of an entire cloud provider region. Which of the following architectures should be implemented?
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
✓
Active-passive deployment across two regions with DNS-based failover
An active-passive deployment across two regions with DNS-based failover ensures that if one entire region fails, traffic is routed to the passive region, providing disaster recovery at the region level. Option B is wrong because multiple availability zones within a single region cannot survive the failure of the entire region. Option C is wrong because auto-scaling groups in a single region do not protect against region failure. Option D is wrong because active-active across AZs within one region also cannot survive a region-level failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Active-passive deployment across two regions with DNS-based failover
Why this is correct
Cross-region failover provides disaster recovery if a region fails.
- ✗
Active-passive deployment across multiple availability zones in the same region
Why it's wrong here
Same region does not protect against region failure.
- ✗
Single-region deployment with auto-scaling groups
Why it's wrong here
Auto-scaling within one region cannot recover from region failure.
- ✗
Active-active deployment across multiple availability zones in the same region
Why it's wrong here
Availability zones are within a region; region failure would take all zones.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.