AZ-200 Azure Functions & Serverless Computing 2

Question 1

Which Azure Functions Premium Plan feature ensures at least one function instance is always warm to eliminate cold starts?

Accepted Answer

Pre-warmed instances

Answer

Pre-warmed instances on the Premium Plan keep at least one instance initialized so the first request does not incur a cold-start delay.

Question 2

When using the Timer trigger in Azure Functions, which expression format is used to define the schedule?

Accepted Answer

CRON expression

Answer

Timer triggers use a CRON expression (with an optional sixth field for seconds) to define when the function should fire.

Question 3

In Azure Functions, what is the purpose of the host.json file?

Accepted Answer

Configure global settings for the function app host

Answer

host.json contains global configuration options that affect all functions in the app, such as logging levels, retry policies, and extension settings.

Question 4

Which Azure Functions trigger automatically scales based on the number of messages in a queue?

Accepted Answer

Queue Storage trigger

Answer

The Azure Queue Storage trigger monitors queue depth and scales out function instances automatically when messages accumulate.

Question 5

What is the role of the Durable Functions 'Entity function'?

Accepted Answer

Store and manage stateful objects identified by an entity ID

Answer

Entity functions (Durable Entities) define operations that read and write small pieces of state, each identified by a unique entity ID.

AZ-200 - Microsoft Azure Developer Practice Test