This 200-901 practice question tests your understanding of cisco platforms and development. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A developer is creating a Python script to retrieve interface statistics from a Cisco IOS XE device using RESTCONF. Which HTTP method should be used to get the data?
GET
GET retrieves data from the specified endpoint.
POST
Why wrong: POST is used for creating resources, not retrieving.
PUT
Why wrong: PUT is used for updating resources.
DELETE
Why wrong: DELETE removes resources.
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
RESTCONF uses standard HTTP methods to perform CRUD operations on YANG-defined data. To retrieve interface statistics without modifying any resource, the GET method is correct, as it maps directly to the NETCONF <get> or <get-config> operation for reading data.
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.
GET
Why this is correct
GET retrieves data from the specified endpoint.
Related concept
Read the scenario before looking for a memorised answer.
POST
Why it's wrong here
POST is used for creating resources, not retrieving.
PUT
Why it's wrong here
PUT is used for updating resources.
DELETE
Why it's wrong here
DELETE removes resources.
Common exam traps
Cisco often tests the distinction between HTTP methods in RESTCONF, and the trap here is that candidates may confuse POST (used for creating resources) with GET, especially when thinking of sending a 'request' for data.
Detailed technical explanation
Under the hood, RESTCONF uses the HTTP GET method to target a URI that corresponds to a YANG data node (e.g., /restconf/data/Cisco-IOS-XE-interfaces-oper:interfaces). The server returns the requested data in JSON or XML format, and the response includes an ETag header for caching and conditional requests. In real-world automation, GET is used to poll interface counters for monitoring dashboards without side effects.
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
Cisco Platforms and Development — This question tests Cisco Platforms and Development — Read the scenario before looking for a memorised answer..
The correct answer is: GET — RESTCONF uses standard HTTP methods to perform CRUD operations on YANG-defined data. To retrieve interface statistics without modifying any resource, the GET method is correct, as it maps directly to the NETCONF <get> or <get-config> operation for reading data.
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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