GraphQL - Coursera - pr1

Question 1

Which of the following modules allows cross-origin requests in ExpressJS?

cors
graphql-depth-limit
express-graphql
graphql

Answer 1

cors

Question 2

We used several type definitions in our schema in this class. Which of the following is not a valid GraphQL schema?

object definitions
mutation
query
callback functions

Answer 2

callback functions

Question 3

The part of the ExpressJS code that resolves a request to the actual data to be returned is called the:

schema
listener
port
resolver

Answer 3

resolver

Question 4

Which of the following is a way to deter malicious query to be submitted and executed on the server?

Use faster server hardware
Use Linux for the server.
Use a web service to host the server
Limit query depth

Answer 4

Limit query depth

Question 5

What can we do if we don’t want to convert a JSON object to the schema to be returned?

• Use XML instead
• Stringify the JSON object and serialize it.
• Make the schema and the JSON object use the same signature, then we can just return the JSON object.
• Use https instead of http.

Answer 5

Make the schema and the JSON object use the same signature, then we can just return the JSON object.

Question 6

Which of the following code binds the schema to the resolver rootValue?

app. use(“/”, { schema: rootValue } ) );
app. use(“/”, (req, res) => { schema, rootValue } ;
app. use(“/”, schema, rootValue);
app. use(“/”, graphqlHTTP( { schema, rootValue } ) );

Answer 6

app.use(“/”, graphqlHTTP( { schema, rootValue } ) );