Module Quiz

Question 1

What command do you use to run a saved Meshery performance profile from the CLI?

Select one answer

mesheryctl system check --profile <name>

mesheryctl perf apply --profile <name>

mesheryctl perf run --name <name>

mesheryctl design apply --perf <name>

Question 2

Which load generator is best suited for testing a gRPC service running behind an Istio service mesh?

Select one answer

wrk2

fortio

nighthawk

ab (Apache Bench)

Question 3

When feeding a performance profile result to a coding agent for analysis, which of the following inputs improve the quality of the agent's diagnosis? Select all that apply.

Select all that apply

The full profile result JSON from mesheryctl perf apply --output json

CPU and memory utilization metrics from the test window

The current deployment manifest including resource limits and replica count

The names of the engineers who wrote the service

Question 4

A performance profile result shows p50 latency of 15 ms and p99 latency of 220 ms. What does the large gap between p50 and p99 most likely indicate?

Select one answer

The service is uniformly slow and needs more replicas

The load generator is misconfigured

Most requests are fast but tail requests experience intermittent resource pressure

The p99 metric is not meaningful and can be ignored