ANS-C01 Network Management and Operations Practice Question
A network engineer is troubleshooting a slow connection between an EC2 instance and an RDS database in the same VPC. The engineer wants to analyze network performance metrics. Which TWO metrics should the engineer examine? (Choose two.)
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
✓
Round-trip time between the EC2 instance and RDS
(Round-trip time) directly measures latency between the EC2 instance and RDS, which is key for diagnosing slow connections. Option E (Network packets dropped) indicates network congestion or performance issues at the network interface. Option A (Database connections count) is an application-level metric that does not directly measure network performance. Option B (Disk queue depth) is storage-related. Option D (RDS CPU utilization) is a system metric that may affect database performance but does not directly indicate network latency or packet loss.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Database connections count
Why it's wrong here
Application-level metric, not network performance.
- ✗
Disk queue depth
Why it's wrong here
Storage metric, not network.
- ✓
Round-trip time between the EC2 instance and RDS
Why this is correct
Direct measure of latency.
- ✗
RDS instance CPU utilization
Why it's wrong here
CPU is not a network metric.
- ✓
Network packets dropped by the RDS instance's network interface
Why this is correct
Indicates network congestion.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This ANS-C01 practice question is part of Courseiva's free Amazon Web Services 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 ANS-C01 exam.