200-901 Cisco Platforms and Development Practice Question
A developer needs to register a Webex webhook that triggers when a new message is posted in any room the bot is a member of. Which resource and event should be specified?
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
✓
resource: 'messages', event: 'created'
To listen for new messages in any room the bot is in, use the 'messages' resource and 'created' event.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
resource: 'rooms', event: 'created'
Why it's wrong here
The 'rooms' resource with 'created' fires when a new room is created, not when a message is posted. It is tempting because rooms are where messages appear, but the trigger must target the 'messages' resource with the 'created' event to detect new posts.
- ✗
resource: 'messages', event: 'updated'
Why it's wrong here
The 'updated' event fires when an existing message is edited, not when a new one is posted. It is tempting because 'messages' is the correct resource, but the event must be 'created'; 'updated' suits scenarios where edits to existing messages require notification.
- ✓
resource: 'messages', event: 'created'
Why this is correct
Webex webhooks subscribe to a resource and event pair. Specifying resource 'messages' with event 'created' fires the webhook whenever a new message is posted in any room the bot belongs to, matching the required trigger scope exactly.
- ✗
resource: 'memberships', event: 'created'
Why it's wrong here
The 'memberships' resource with 'created' fires when a person is added to a room, not when a message is posted. It is tempting because membership changes relate to rooms, but detecting new messages requires the 'messages' resource with the 'created' event.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.