Event Grid subscriptions and filters in Azure - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is an Event Grid subscription in Azure?

An Event Grid subscription connects an event source to an event handler. It tells Azure where to send events when they happen.

beginner

What is the purpose of filters in Event Grid subscriptions?

Filters let you choose which events to receive based on event properties, so you only get the events you care about.

intermediate

Name two types of filters you can use in Event Grid subscriptions.

You can use subject filters (to filter by event subject) and advanced filters (to filter by event data or system properties).

intermediate

How does a subject filter work in Event Grid?

A subject filter matches the event's subject string with a prefix, suffix, or exact match to decide if the event should be sent.

beginner

What happens if no filters are set on an Event Grid subscription?

If no filters are set, the subscription receives all events from the event source.

What does an Event Grid subscription do?

A Creates virtual machines

B Stores event data permanently

C Manages user access

D Connects an event source to an event handler

An Event Grid subscription connects an event source to an event handler to deliver events.

Which filter type allows filtering events by event subject prefix or suffix?

A Subject filter

B Advanced filter

C Time filter

D Location filter

Subject filters match event subjects using prefix, suffix, or exact match.

If you want to receive only events where a property 'status' equals 'completed', which filter would you use?

A Subject filter

B Subscription filter

C Advanced filter

D No filter

Advanced filters allow filtering by event data properties like 'status'.

What happens if you create an Event Grid subscription without any filters?

A No events are delivered

B All events from the source are delivered

C Only error events are delivered

D Subscription is invalid

Without filters, the subscription receives all events from the event source.

Which of these is NOT a valid filter type in Event Grid subscriptions?

A Time filter

B Advanced filter

C Subject filter

D Prefix filter

Time filter is not a filter type in Event Grid; subject and advanced filters are valid.

Explain how Event Grid subscriptions use filters to control event delivery.

Think about how you pick only certain messages from a mailbox.

Describe the difference between subject filters and advanced filters in Event Grid subscriptions.

One filters by the event's name, the other by event details.