Android Development Android Networking

Question 1

Which library is commonly used for type-safe HTTP client calls in Android?

Accepted Answer

Retrofit

Answer

Retrofit turns HTTP API calls into Kotlin/Java interfaces with annotations, providing type-safe REST client functionality.

Question 2

What annotation is used in Retrofit to define a GET HTTP request?

Accepted Answer

@GET

Answer

@GET annotates a Retrofit interface method to indicate it should make an HTTP GET request to the specified URL path.

Question 3

Which class in OkHttp is used to intercept and observe HTTP calls?

Accepted Answer

Interceptor

Answer

OkHttp's Interceptor interface allows you to observe, modify, or short-circuit HTTP requests and responses.

Question 4

What permission is required for an Android app to access the internet?

Accepted Answer

android.permission.INTERNET

Answer

The android.permission.INTERNET permission must be declared in AndroidManifest.xml for an app to make network requests.

Question 5

Which Retrofit converter factory parses JSON responses using Gson?

Accepted Answer

GsonConverterFactory

Answer

GsonConverterFactory is added to a Retrofit.Builder to enable automatic serialization and deserialization of JSON using Gson.

Android Development Practice Test