easyMultiple Choice
CV0-004 Practice Question: A cloud administrator is setting up monitoring…
A cloud administrator is setting up monitoring for a web application. The application must be highly available across multiple availability zones. Which of the following metrics should be monitored to ensure that the application meets its service level agreement (SLA) for uptime?
⚠ Common exam trap
Candidates often confuse performance metrics (CPU, disk, throughput) with availability metrics, assuming that high resource usage or low throughput directly indicates an outage, when in fact only the load balancer health check result provides a definitive binary signal of instance availability for SLA compliance.
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
✓
The result of the load balancer health check for each instance.
The load balancer health check result directly indicates whether each instance is reachable and responding correctly to application traffic. Monitoring these results allows the administrator to detect instance failures and verify that the application remains available across multiple availability zones, which is the core requirement for meeting an uptime SLA. Other metrics like throughput, disk space, or CPU utilization are performance indicators but do not directly confirm application 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.
- ✗
Network throughput per minute.
Why it's wrong here
Throughput measures data volume, not reachability, so it cannot evidence the multi-AZ uptime the SLA requires; the metric that does is a health check or availability probe per zone. Throughput is genuinely useful for capacity planning and detecting bandwidth saturation once the service is confirmed reachable.
- ✓
The result of the load balancer health check for each instance.
Why this is correct
Load balancer health checks report whether each instance behind the balancer is serving traffic. Monitoring these results across availability zones detects instance or zone failures immediately, directly measuring the uptime component of the SLA rather than inferring it from CPU or request counts.
- ✗
Percentage of disk space used on each instance.
Why it's wrong here
Disk-space consumption measures storage capacity on individual instances and says nothing about whether the application is reachable across availability zones. It is tempting because capacity exhaustion can cause outages, which would be correct for preventing a single instance filling its volume, not for measuring multi-AZ uptime against the SLA.
- ✗
Average CPU utilization across all instances.
Why it's wrong here
Average CPU utilisation aggregates compute load and cannot detect an availability-zone outage, since remaining instances simply report higher values. It is tempting because sustained high CPU can precede failure, which would be correct for capacity planning or autoscaling triggers, not for verifying uptime across zones.
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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.