This 200-901 practice question tests your understanding of infrastructure and automation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An automation engineer wants to programmatically retrieve the interface configuration of a Cisco Nexus switch using NX-API. Which API call method is most appropriate?
POST
Why wrong: POST is for creating new resources, not retrieving.
DELETE
Why wrong: DELETE is for removing resources.
PUT
Why wrong: PUT is for updating existing resources.
GET
GET is used to retrieve resource representations.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
GET
The NX-API on Cisco Nexus switches uses HTTP methods that map to CRUD operations. To retrieve (read) interface configuration without modifying any state, the GET method is the correct and most appropriate choice, as it corresponds to the 'show' commands in the CLI. POST, PUT, and DELETE are intended for creating, updating, or deleting resources, not for read-only queries.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
POST
Why it's wrong here
POST is for creating new resources, not retrieving.
DELETE
Why it's wrong here
DELETE is for removing resources.
PUT
Why it's wrong here
PUT is for updating existing resources.
GET
Why this is correct
GET is used to retrieve resource representations.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates may confuse POST with GET because NX-API examples often use POST for sending CLI commands in the request body, but the question specifically asks for retrieving configuration, which requires the read-only GET method.
Detailed technical explanation
NX-API exposes a RESTful interface where each HTTP method corresponds to a specific NX-OS CLI command category: GET maps to 'show' commands, POST to 'config' commands, PUT to 'replace' operations, and DELETE to 'no' commands. Under the hood, the API translates the HTTP request into NX-OS CLI commands executed in the appropriate virtual terminal (vty) context. In real-world automation, using GET for retrieval ensures idempotency and avoids unintended side effects on the switch configuration.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the 200-901 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Infrastructure and Automation — This question tests Infrastructure and Automation — Read the scenario before looking for a memorised answer..
The correct answer is: GET — The NX-API on Cisco Nexus switches uses HTTP methods that map to CRUD operations. To retrieve (read) interface configuration without modifying any state, the GET method is the correct and most appropriate choice, as it corresponds to the 'show' commands in the CLI. POST, PUT, and DELETE are intended for creating, updating, or deleting resources, not for read-only queries.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 24, 2026
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