hardMultiple ChoiceObjective-mapped
CV0-004 Practice Question: A company runs a critical application on a cloud…
A company runs a critical application on a cloud VM that must achieve a 99.99% monthly uptime SLA. The VM is deployed in a single availability zone. The current architecture has no redundancy. What is the most effective design change to meet the SLA requirement?
⚠ Common exam trap
CompTIA often tests the distinction between high availability (redundancy across zones) and disaster recovery (backups to another region), leading candidates to mistakenly choose backup solutions for uptime requirements.
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
✓
Deploy the application across two availability zones with a load balancer
Deploying the application across two availability zones with a load balancer provides high availability by eliminating a single point of failure. A 99.99% monthly uptime SLA requires a design that can withstand an entire availability zone failure, which a single-zone deployment cannot achieve. The load balancer distributes traffic to healthy VMs, automatically failing over if one zone becomes unavailable, thus meeting the SLA target.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Schedule daily backups to a different region
Why it's wrong here
Backups protect data but do not provide automatic failover or maintain uptime during failure.
- ✓
Deploy the application across two availability zones with a load balancer
Why this is correct
Multi-AZ deployment eliminates single zone as a point of failure, enabling failover and meeting 99.99% uptime.
- ✗
Upgrade the VM to a larger instance type for better reliability
Why it's wrong here
Instance type does not affect availability; larger instances have same failure risks.
- ✗
Add a second VM in the same availability zone with a load balancer
Why it's wrong here
A single zone can experience complete outage; two VMs in same zone still fail if zone fails.
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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.