200-901 Cisco Platforms and Development Practice Question
A developer wants to create a Webex webhook that triggers when a new message is posted in any room the bot is in. Which resource event should they subscribe to?
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 trigger on new messages, subscribe to 'messages' resource with '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: '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. Subscribing to messages with created is required; updated would miss every initial post and only capture later edits.
- ✗
resource: 'rooms', event: 'created'
Why it's wrong here
The rooms resource fires when a room itself is created, not when a message is posted inside it. Subscribing here would trigger on new spaces; the messages resource with the created event is what delivers posted-message notifications.
- ✓
resource: 'messages', event: 'created'
Why this is correct
Webex webhooks subscribe to a resource and event pair. 'messages' with 'created' fires when a new message is posted, matching the stem's requirement. Subscribing to 'rooms' or 'updated' events would not trigger on new messages in rooms the bot belongs to.
- ✗
resource: 'memberships', event: 'created'
Why it's wrong here
Memberships track room membership changes, firing when a person is added or removed. That suits auditing who joins a space, but a posted message is a messages-resource event, so this subscription never fires for the scenario described.
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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.