Azure Functions and Serverless Computing Flashcards
6 cards from real Microsoft Certified: Azure Developer Associate practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Azure Functions and Serverless Computing flashcards as text
Which Azure Functions trigger fires a function on a schedule defined by a CRON expression?
Answer: Timer trigger
The Timer trigger executes a function at intervals or on specific times defined by a NCRONTAB expression.
In `host.json`, which setting controls the maximum number of concurrent function executions per instance?
Answer: maxConcurrentCalls
`maxConcurrentCalls` in `host.json` under the `queues` or `serviceBus` extension limits how many function invocations run in parallel per host.
What is the purpose of the `local.settings.json` file in Azure Functions development?
Answer: Stores connection strings and app settings for local development only
`local.settings.json` holds app settings and connection strings used only during local development and should never be committed to source control.
Which output binding allows an Azure Function to write messages directly to an Azure Service Bus queue?
Answer: [ServiceBus] output binding
The `[ServiceBus]` output binding lets a function send messages to a Service Bus queue or topic without SDK code.
What Durable Functions feature enables long-running workflows to pause and wait for an external event?
Answer: waitForExternalEvent
`waitForExternalEvent` suspends an orchestration and resumes it when a named external event is raised via the client API.
Which Azure Functions Premium plan feature keeps at least one warm instance ready to eliminate cold starts?
Answer: Pre-warmed instances
The Premium plan's pre-warmed instances maintain at least one initialized host ready to respond instantly, eliminating cold start latency.