Exam AZ-204 topic 5 question 37 discussion

Quotes from the reference below: "A sentinel key is a key that you update after you complete the change of all other keys. Your app monitors the sentinel key. When a change is detected, your app refreshes all configuration values. This approach helps to ensure the consistency of configuration in your app and reduces the overall number of requests made to your App Configuration store, compared to monitoring all keys for changes." "You can add a call to the refreshOptions.SetCacheExpiration method to specify the minimum time between configuration refreshes. In this example, you use the default value of 30 seconds. Adjust to a higher value if you need to reduce the number of requests made to your App Configuration store." Reference: https://learn.microsoft.com/en-us/azure/azure-app-configuration/enable-dynamic-configuration-aspnet-core?tabs=core6x

Correct Answers Link: https://learn.microsoft.com/en-us/azure/azure-app-configuration/enable-dynamic-configuration-aspnet-netfx

A. Create and register a sentinel key in the App Configuration store. Set the refreshAll parameter of the Register method to true. B. Increase the App Configuration cache expiration from the default value.

A / B Creating and registering a sentinel key in the App Configuration store with the refreshAll parameter set to true will ensure the consistency of all configuration data when changes to individual settings occur. This is because when the sentinel key changes, all configuration data is refreshed. Increasing the App Configuration cache expiration from the default value will reduce the overall number of requests made to App Configuration APIs. This is because the application will cache the configuration data for a longer period of time before it needs to request updated data from the App Configuration APIs.

AB - Increase the refresh timeout, especially if your configuration values do not change frequently. - Watch a single sentinel key, rather than watching individual keys. Refresh all configuration only if the sentinel key changes Ref: https://learn.microsoft.com/en-us/azure/azure-app-configuration/howto-best-practices#reduce-requests-made-to-app-configuration

It's AB for sure, since it fully follows the best practices of AzureAppConfig service: https://learn.microsoft.com/en-us/azure/azure-app-configuration/howto-best-practices#reduce-requests-made-to-app-configuration It can't be D since there is no any word about a secret in the Q.

Option B. Increase the App Configuration cache expiration from the default value is a valid consideration for reducing the number of requests made to App Configuration APIs, but it does not directly address the requirement of dynamic configuration updates without causing the application to restart. In fact, the default behavior of Azure App Configuration already includes caching to minimize the number of requests to the configuration store. Adjusting the cache expiration might help reduce the frequency of requests, but it won't handle dynamic updates without application restarts. For achieving dynamic configuration updates without restarting the application, options A (sentinel key) and D (Azure Key Vault configuration provider) are more relevant. These options allow you to implement dynamic configuration changes and ensure consistency without requiring application restarts.

I had to go for A & D. For B "You can add a call to the refreshOptions.SetCacheExpiration method to specify the minimum time between configuration refreshes. In this example, you use the default value of 30 seconds. Adjust to a higher value if you need to reduce the number of requests made to your App Configuration store." explanation makes no sense for me.

Option B, Increase the App Configuration cache expiration from the default value, is not a good solution for dynamic configuration updates.

A,B 100% correct answer!

B makes no sense A and D are correct!

AB , looks correct.

A. Create and register a sentinel key in the App Configuration store. Set the refreshAll parameter of the Register method to true. D. Create and configure Azure Key Vault. Implement the Azure Key Vault configuration provider. Chat GPT B n C are related to Cache and has nothing to do with the question. Chat GPT

A. Create and register a sentinel key in the App Configuration store. Set the refreshAll parameter of the Register method to true: By creating a sentinel key in the App Configuration store, you can ensure that all configuration data remains consistent when changes to individual settings occur. You can register the sentinel key and set the refreshAll parameter of the Register method to true to refresh all settings in the App Configuration store. D. Create and configure Azure Key Vault. Implement the Azure Key Vault configuration provider: The Azure Key Vault configuration provider enables you to store configuration data in Azure Key Vault. By using the Azure Key Vault configuration provider, you can implement dynamic configuration updates in your app without causing the app to restart. This approach also reduces the overall number of requests made to the App Configuration APIs.

The two ways to achieve dynamic configuration updates in an ASP.NET Core app that uses Azure App Configuration are: A. Create and register a sentinel key in the App Configuration store. Set the refreshAll parameter of the Register method to true. D. Create and configure Azure Key Vault. Implement the Azure Key Vault configuration provider.

correct answer

Correct