AZ-204 Certification Practice Question #213

Question

You are creating an app that uses Event Grid to connect with other services. Your app's event data will be sent to a serverless function that checks compliance.
This function is maintained by your company.
You write a new event subscription at the scope of your resource. The event must be invalidated after a specific period of time.
You need to configure Event Grid.
What should you do? To answer, select the appropriate options in the answer area.
NOTE: Each correct selection is worth one point.
Hot Area:

Accepted Answer

Azure Event Grid uses a validation handshake when registering a Webhook endpoint — the synchronous method is the ValidationCode handshake (the endpoint echoes back the `validationCode`). For publishing events TO a custom topic, clients authenticate using SAS tokens (or access keys). The note "event must be invalidated after a specific period" refers to the event's TTL, not the webhook validation method, so `validationUrl` (async with expiry) could be argued but the strongly-voted majority (jay158 51👍) and multiple exam confirmations point to ValidationCode / SAS tokens as the exam answer. The reversed Copilot answer (Key auth / ValidationCode) contradicts the documented flow.

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