350-601 Automation Practice Question
A Nexus switch configured with 'feature nxapi' and 'nxapi https port 443' fails to respond to REST API calls from a monitoring system. The engineer can ping the management IP. Which troubleshooting step should be taken first?
⚠ Common exam trap
Cisco often tests the distinction between enabling a feature with a command and the actual process running; candidates assume that 'feature nxapi' guarantees the service is operational, but the trap is that the process may not start automatically, and 'show nxapi' is the correct verification step.
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
✓
Verify that the NX-API process is running with 'show nxapi'
The first step when NX-API is configured but not responding is to verify that the NX-API process is actually running. The 'feature nxapi' command enables the feature, but the NX-API service may not have started due to a configuration error, resource issue, or process crash. The 'show nxapi' command displays the operational status of the NX-API service, including whether it is listening on the configured port (443 in this case). Since the engineer can ping the management IP, basic network connectivity exists, so the issue is likely at the application layer.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Check if the monitoring system is using the correct HTTP method
Why it's wrong here
Less likely cause; start with server-side.
- ✗
Review the switch's ACL for the management VRF
Why it's wrong here
Ping works, so ACL likely allows ICMP but could block HTTPS; but still second step.
- ✓
Verify that the NX-API process is running with 'show nxapi'
Why this is correct
Quick check of API status.
- ✗
Confirm that the SSL certificate is trusted
Why it's wrong here
Would cause TLS errors, not complete failure to respond.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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