ANS-C01 Network Management and Operations Practice Question
A network engineer needs to troubleshoot high latency between two EC2 instances in the same VPC but in different Availability Zones. Which tool should be used to measure network performance?
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
✓
Use iperf to measure throughput and latency
Iperf is the correct tool because it can measure both throughput and latency between two points, making it ideal for troubleshooting high latency. Traceroute (A) shows the network path but does not measure performance. Ping (B) measures round-trip time but not throughput. Netstat (D) displays network connections and statistics but does not actively measure performance.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Use traceroute to identify the path
Why it's wrong here
Traceroute shows the route but does not measure latency or throughput accurately.
- ✗
Use ping to test connectivity
Why it's wrong here
Ping tests connectivity and RTT but not throughput or detailed latency.
- ✓
Use iperf to measure throughput and latency
Why this is correct
iperf is designed for active network performance measurement.
- ✗
Use netstat to check network statistics
Why it's wrong here
Netstat shows current network connections and statistics, not active performance.
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JA
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.