200-901 Cisco Platforms and Development Practice Question
A Webex bot needs to send a message to a room. The bot has the room ID. Which API endpoint should be used, and what is the correct HTTP method?
⚠ Common exam trap
200-901 often tests the distinction between HTTP methods and their typical CRUD operations, so candidates might incorrectly choose PUT for updating a message or GET for retrieving messages, but the question specifically asks for sending a message, which requires POST to the correct resource.
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
✓
POST /v1/messages
The Webex Teams API uses POST /v1/messages to create and send a new message to a room. The request body must include the roomId and either text or markdown. This is the standard endpoint for sending messages, and it returns a 200 OK with the message details upon success.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
POST /v1/messages
Why this is correct
Sending a message to a room is a create operation on the messages collection, so the bot calls POST /v1/messages with the roomId in the JSON body. The room ID alone does not form a resource path for a GET or PUT.
- ✗
PUT /v1/messages/{messageId}
Why it's wrong here
PUT /v1/messages/{messageId} updates or replaces an existing message identified by messageId, so it cannot create a new message from a room ID. It is tempting because it targets the messages resource, but sending requires POST /v1/messages with the roomId in the body.
- ✗
GET /v1/messages
Why it's wrong here
GET /v1/messages retrieves message history and cannot send anything. It is tempting because it uses the messages resource the bot needs, but retrieval is read-only; sending requires POST /v1/messages with the roomId and message text in the body.
- ✗
POST /v1/rooms
Why it's wrong here
POST /v1/rooms creates a new room, not a message. It is tempting because the bot already holds a room ID and rooms are the message destination, but the room exists already; the correct call is POST /v1/messages with roomId in the request body.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Cisco exam blueprint
This 200-901 practice question is part of Courseiva's free Cisco 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 200-901 exam.