GraphQL

What is an exclamation point in GraphQL?

• non-nullable field

• nullable field

You are working with introspection in GraphQL and need to query the type of an object to get all available information. How would you do this?

• Use the __typename meta field in your query.

• Add a resolver with multiple queries.

• Use the __type query

• Use the __fields query with a typeName argument.

You are working on a project using GraphQL. You need to add basic information, including a title and the number of views, to a website using a custom object named "Website". Which code snippet correctly accomplishes this task?

• object Website {

  title: Boolean

  numberOfViews: String

  }

• type Website {

  title: String

  numberOfViews: Int

  }

• declare object Website {

  title: Boolean

  numberOfViews: String

  }

• export Website {

  title: String

  numberOfViews: Int

  }

Which operation in GraphQL would be used to update an existing object in a backend database?

• Query

• PATCH

• POST

• Mutation

In GraphQL, what kind of scalar only allows a specific set of allowed values?

• enum type

• reserved type

• interface type

• mutation type

const { MockList } = require('apollo-server');

const mocks = {

Person: () => ({

friends: () => new MockList([0,12])

}),

};

How many friends will be returned when you query that field?

• Between 0 and 12 excluding 0 and 12

• Between 0 and 12 inclusive

• Between 0 and 12 excluding 0

• Between 0 and 12 excluding 12

Which type of return value will cause Apollo Server to treat the resolver as async?

• Promise

• Awaitable

• Observable

• Task

Schema types in graphQL

• Boolean

• ID

• Enum

• Object

• All of the Above

How do we define array of object in GraphQL?

• Session[]

• []Session

• [Session]

• None of the above

Which HTTP method is used in GraphQL?

• GET

• POST

• PUT

• All of the Above

• None of the above