Application settings and connection strings in Azure - Cheat Sheet & Quick Revision

Recall & Review

beginner

What are application settings in Azure App Service?

Application settings are key-value pairs stored securely in Azure App Service. They configure app behavior without changing code, like setting environment variables.

beginner

How do connection strings differ from application settings?

Connection strings specifically store information needed to connect to databases or services, like server address and credentials. They are a special type of application setting with extra security.

beginner

Why should you avoid hardcoding connection strings in your app code?

Hardcoding connection strings risks exposing sensitive data and makes updates harder. Using Azure's application settings keeps secrets secure and allows changing values without redeploying.

intermediate

How can you update application settings without stopping your Azure App Service?

You can update application settings in the Azure portal or via CLI. Changes apply immediately or after app restart, but you can configure settings to reload without downtime.

intermediate

What is the benefit of slot-specific application settings in Azure App Service?

Slot-specific settings let you have different values per deployment slot (like staging vs production). This helps test changes safely without affecting live app settings.

Where are Azure App Service application settings stored?

A In the app's source code

B In Azure portal as key-value pairs

C In a local config file on the server

D In the user's browser cache

Application settings are stored securely in the Azure portal as key-value pairs, separate from app code.

What type of information is typically stored in a connection string?

A Database server address and credentials

B Logging levels

C User interface layout

D App version number

Connection strings contain details like database server address, username, and password to connect to a database.

Why use slot-specific application settings in Azure App Service?

A To share settings across all apps

B To encrypt settings automatically

C To disable settings temporarily

D To have different settings per deployment slot

Slot-specific settings allow different configuration values for each deployment slot, like staging and production.

How can you update application settings for an Azure App Service?

A By editing the app's source code

B Only by redeploying the app

C Through Azure portal or CLI without redeploying

D By restarting the user's device

You can update settings anytime via Azure portal or CLI without redeploying the app.

What is a key security benefit of using Azure application settings for secrets?

A They are encrypted and not stored in code

B They are visible to all users

C They require manual encryption by the developer

D They are stored in plain text files

Azure encrypts application settings and keeps them separate from code, protecting sensitive information.

Explain how application settings and connection strings help manage app configuration in Azure App Service.

Think about how you would change app behavior without touching the code.

Describe the advantages of using deployment slots with slot-specific application settings.

Imagine testing a new app version safely before making it live.