2. Describe Common Usage Patterns Related to Webhooks 200-901 Practice Questions (Page 1)

Questions 1–5

1. 1application · medium

   A webhook sender is configured to retry delivery with exponential backoff. The receiver is temporarily down for maintenance. What is the expected behavior of the sender?

   • AThe sender will retry the delivery after increasing intervals until the receiver responds with a 2xx status or the retry limit is reached.
   • BThe sender will wait for the receiver to come back online and then send the event.
   • CThe sender will immediately send the event to a different receiver URL.
   • DThe sender will drop the event permanently after the first failed attempt.
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2. 2expert · hard

   A network operations team is evaluating two integration methods for a network controller: webhooks and polling. The controller supports both. The team needs near-real-time updates for critical alerts, but the API rate limit is low. The team also wants to minimize the number of API calls. Which method should they choose?

   • AUse polling every 30 seconds to check for new alerts.
   • BUse a hybrid approach: poll for alerts and use webhooks for other events.
   • CUse polling every 5 minutes to reduce API calls.
   • DUse webhooks to receive push notifications only when critical alerts occur.
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4. 3application · medium

   A DevOps team wants to receive a notification in a Microsoft Teams channel whenever a Git commit is pushed to the main branch of their repository. The team has already created a custom incoming webhook URL in Teams. What is the next step to complete the integration?

   • AHave Teams poll the Git server's API for new commits every minute.
   • BCreate a new webhook URL in the Git server and provide it to Teams.
   • CUse the Teams webhook URL as the callback URL in a Git post-commit hook script.
   • DConfigure the Git server to send an HTTP POST to the Teams webhook URL on the push event.
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5. 4application · medium

   A developer wants to receive webhook notifications from a cloud API when a virtual machine is created. The API requires the developer to register a URL that will receive the notifications. What must the developer do to ensure the webhook is delivered securely and only for the desired event?

   • ARegister a private IP address and subscribe to all events to avoid missing any notifications.
   • BRegister an HTTP URL and rely on the API's authentication token in the payload for security.
   • CRegister a URL that points to a localhost server and use polling as a backup.
   • DRegister a public HTTPS URL and subscribe to the 'VM created' event, then verify the webhook signature using the shared secret provided by the API.
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6. 5application · medium

   A webhook receiver is receiving POST requests from a network device. The receiver needs to confirm that the request is a valid webhook event and not a random HTTP request. The device includes a signature header in the request. What should the receiver do first?

   • AVerify the signature using the shared secret and then parse the payload.
   • BReturn HTTP 200 immediately and process the payload asynchronously.
   • CParse the payload and then verify the signature if parsing succeeds.
   • DCheck the source IP address and then parse the payload.
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