2. Describe Common Usage Patterns Related to Webhooks 200-901 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the purpose of configuring event subscriptions during webhook registration?

   • ATo define the authentication method for the client's API
   • BTo set the frequency at which the provider should poll the client's server
   • CTo specify which events should trigger a webhook delivery to the registered URL
   • DTo choose the data format for the webhook payload
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2. 17expert · hard

   A network monitoring platform needs to track status changes of thousands of devices. The devices support both polling and webhooks. The platform currently polls every 5 minutes, but the operations team wants faster detection of critical failures. However, the team is concerned about the load on the devices if polling frequency is increased. What is the best approach to balance faster detection and device load?

   • AIncrease polling frequency to every 30 seconds for all devices.
   • BSwitch to webhooks for critical events, and keep polling at a reduced frequency for non-critical status updates.
   • CKeep polling at 5 minutes but use a machine learning algorithm to predict failures.
   • DUse webhooks for all events and disable polling entirely.
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4. 18application · medium

   A company's webhook endpoint is sometimes unavailable due to maintenance. The webhook provider has a retry policy that sends failed deliveries again after 1 minute, 10 minutes, and 1 hour. The endpoint processes the event successfully on the second attempt. What should the endpoint do to ensure the event is not processed again if the provider sends a duplicate after the second attempt?

   • AIncrease the retry interval to 2 hours to give more time for maintenance.
   • BStore the event ID from the payload and ignore any future delivery with the same event ID.
   • CLog the event and manually check for duplicates later.
   • DReturn HTTP 200 on the first attempt to prevent retries.
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5. 19foundation · easy

   Which scenario is a common use case for webhooks?

   • ASending a notification to a chat application when a CI/CD build completes
   • BResolving domain names to IP addresses
   • CSynchronizing files between two servers using rsync
   • DEstablishing a VPN tunnel between two offices
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6. 20expert · hard

   A network automation team is designing a system to monitor device configuration changes. They need to ensure that no change is missed, but they also want to minimize the load on the devices. The devices support webhooks, but the team is concerned about the reliability of webhook delivery. What is the best approach to ensure no changes are missed while minimizing load?

   • AUse only webhooks and rely on the provider's retry policy to ensure delivery.
   • BUse webhooks but do not implement any error handling.
   • CUse webhooks for real-time notification and periodically poll as a backup to catch any missed events.
   • DUse only polling at a high frequency to ensure no changes are missed.
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