ANS-C01 Network Management and Operations Practice Question
A network engineer is troubleshooting high latency to an application hosted in Amazon EC2. The application uses an Application Load Balancer. Which metrics in Amazon CloudWatch should be examined to identify if the load balancer is causing latency?
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
✓
TargetResponseTime
TargetResponseTime measures the time taken by the target to respond, which directly indicates backend latency. Option A (HTTP 5XX Count) is wrong because it indicates errors, not latency. Option B (ActiveConnectionCount) is wrong because it measures concurrent connections, not latency. Option D (RequestCount) is wrong because it is a count of requests, not latency.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
HTTP 5XX Count
Why it's wrong here
HTTP 5XX Count indicates errors from the target, not latency. High 5XX errors could be a symptom but not a direct measure of latency.
- ✗
ActiveConnectionCount
Why it's wrong here
ActiveConnectionCount measures concurrent connections, not latency.
- ✓
TargetResponseTime
Why this is correct
TargetResponseTime measures the time taken by the target to respond, which directly indicates backend latency.
- ✗
RequestCount
Why it's wrong here
RequestCount is a count of requests, not a measure of latency.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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