AZ-200 Azure Functions & Serverless Computing 1 — Questions and Answers
Question 1: Which Azure Functions hosting plan automatically scales to zero when idle and charges only for execution time?
- Premium Plan
- Dedicated (App Service) Plan
- Consumption Plan (Correct answer)
- Isolated Plan
Correct answer: Consumption Plan
The Consumption Plan scales to zero between invocations and bills only per execution, making it the true serverless option.
Question 2: What is the maximum default timeout for an Azure Function running on the Consumption Plan?
- 5 minutes
- 10 minutes (Correct answer)
- 20 minutes
- 30 minutes
Correct answer: 10 minutes
On the Consumption Plan the default timeout is 5 minutes and the maximum allowed is 10 minutes.
Question 3: Which trigger type allows an Azure Function to respond to HTTP requests?
- Queue trigger
- Timer trigger
- HTTP trigger (Correct answer)
- Event Grid trigger
Correct answer: HTTP trigger
The HTTP trigger binds the function to an HTTP endpoint so it can respond to GET, POST, and other HTTP methods.
Question 4: In Azure Durable Functions, which function type orchestrates the execution of other functions?
- Activity function
- Orchestrator function (Correct answer)
- Entity function
- Client function
Correct answer: Orchestrator function
The Orchestrator function defines the workflow logic, calling Activity functions and managing their sequencing and state.
Question 5: Which binding direction is used when an Azure Function writes output to an Azure Queue?
- Input binding
- Trigger binding
- Output binding (Correct answer)
- Bidirectional binding
Correct answer: Output binding
Output bindings allow a function to write data to an external service such as Azure Queue Storage without writing SDK code.
Question 6: What file is used to configure triggers and bindings for an Azure Function when not using attribute-based programming?
- host.json
- local.settings.json
- function.json (Correct answer)
- appsettings.json
Correct answer: function.json
function.json declares the trigger, input bindings, and output bindings for a single function in non-.NET scripting languages.
Question 7: Which Durable Functions pattern is best suited for running multiple independent tasks in parallel and aggregating their results?
- Function chaining
- Fan-out/fan-in (Correct answer)
- Async HTTP APIs
- Monitor
Correct answer: Fan-out/fan-in
The fan-out/fan-in pattern starts multiple activity functions simultaneously and waits for all of them to complete before aggregating results.
AZ-200 Azure Functions & Serverless Computing 1
Which Azure Functions hosting plan automatically scales to zero when idle and charges only for execution time?