Developing Solutions for Microsoft Azure — Question 13

You develop and add several functions to an Azure Function app that uses the latest runtime host. The functions contain several REST API endpoints secured by using SSL. The Azure Function app runs in a Consumption plan.
You must send an alert when any of the function endpoints are unavailable or responding too slowly.
You need to monitor the availability and responsiveness of the functions.
What should you do?

Answer options

• A. Create a URL ping test.
• B. Create a timer triggered function that calls TrackAvailability() and send the results to Application Insights.
• C. Create a timer triggered function that calls GetMetric("Request Size") and send the results to Application Insights.
• D. Add a new diagnostic setting to the Azure Function app. Enable the FunctionAppLogs and Send to Log Analytics options.

Correct answer: B

Explanation

The correct answer is B because using a timer triggered function with TrackAvailability() allows you to actively monitor the response time and availability of your function endpoints. Option A, while useful, does not provide detailed performance metrics. Option C focuses on request size rather than availability, and option D relates to logging rather than active monitoring of endpoint performance.