Remote Config in Android Kotlin - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is Remote Config in Android development?

Remote Config is a cloud service that lets you change your app's behavior and appearance without publishing an app update. You can update values remotely and your app fetches them to apply changes instantly.

beginner

How do you fetch and activate Remote Config values in Kotlin?

You call fetch() to get values from the server, then activate() to apply them. Usually combined as fetchAndActivate() for simplicity.

beginner

What is the purpose of setDefaults() in Remote Config?

It sets default values locally in your app. These values are used if fetching from the server fails or before the first fetch.

intermediate

Why is it important to cache Remote Config values?

Caching avoids frequent network calls, improving app performance and reducing data usage. Remote Config SDK manages caching automatically with a minimum fetch interval.

intermediate

How can Remote Config help in A/B testing?

You can create different parameter values for different user groups remotely. This helps test features or UI changes without releasing multiple app versions.

Which method fetches Remote Config values and applies them immediately?

A setDefaults()

B fetchAndActivate()

C activate()

D initialize()

fetchAndActivate() fetches values from the server and activates them in one call.

What happens if Remote Config fetch fails and no defaults are set?

A App uses last cached values or empty values

B App crashes

C App fetches again immediately

D App shows an error dialog

If fetch fails, the app uses cached values or empty values if no defaults are set.

Why should you avoid fetching Remote Config too frequently?

A It disables Remote Config

B It can cause app to freeze

C It deletes local data

D It wastes battery and network data

Frequent fetches waste battery and network data; Remote Config SDK enforces minimum fetch intervals.

Which of these is NOT a typical use case for Remote Config?

A Updating app logic code

B Showing different messages to users

C Running A/B tests

D Changing app theme colors remotely

Remote Config cannot update app code; it only changes parameters and UI behavior.

How do you set default Remote Config values in Kotlin?

A remoteConfig.activate()

B remoteConfig.fetch()

C remoteConfig.setDefaults(R.xml.remote_config_defaults)

D remoteConfig.initializeDefaults()

setDefaults() loads default values from a resource XML file or a map.

Explain how Remote Config helps you change app behavior without releasing a new version.

Think about how you can update app settings remotely.

Describe the steps to safely use Remote Config values in your Android app.

Consider what happens before and after fetching.