API GraphQL & SOAP Testing

Question 1

What is the primary HTTP method used to send GraphQL queries and mutations?

Accepted Answer

POST

Answer

GraphQL typically uses HTTP POST with a JSON body containing the query string, variables, and operation name.

Question 2

What is a GraphQL 'schema' used for?

Accepted Answer

Describing all available types, queries, mutations, and subscriptions in the API

Answer

The GraphQL schema is the contract that defines every type, field, query, mutation, and subscription the API exposes.

Question 3

What is the difference between a GraphQL 'query' and a 'mutation'?

Accepted Answer

Queries read data; mutations create, update, or delete data

Answer

In GraphQL, queries are read operations (analogous to REST GET) while mutations modify server-side data (analogous to REST POST/PUT/DELETE).

Question 4

What does SOAP stand for in web services testing?

Accepted Answer

Simple Object Access Protocol

Answer

SOAP (Simple Object Access Protocol) is an XML-based messaging protocol used for structured communication between web services.

Question 5

What format do SOAP API messages use for their payload?

Accepted Answer

XML

Answer

SOAP messages are always XML-formatted, wrapped in an Envelope element containing optional Header and mandatory Body elements.

API - Testing Practice Test