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React and RESTful APIs Quiz

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Question 1/15

In RESTful APIs, what is the typical use of query parameters in a URL?

Select your answer

To authenticate the request

To filter or sort resources

To namespacing the API

To define the endpoint's HTTP method

Question 2/15

Consider this code snippet: What does it do? ```javascript fetch('https://api.example.com/data') .then(response => response.json()) .then(data => console.log(data)); ```

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data));

Select your answer

Sends JSON data to the server

Logs the entire fetch response to the console

Fetches data from the server and logs the parsed result

Throws an error because JSON parsing is incorrect

Question 3/15

What is the correct way to set headers for a RESTful API request using the Fetch API?

fetch('https://api.example.com/data', {
  method: 'GET',
  headers: { 'Content-Type': 'application/json' }
});

Select your answer

fetch(url, { headers: new Headers({ id: value }) })

fetch(url, headers: { 'Content-Type': 'application/json' })

fetch(url, { method: 'GET', body: headers })

fetch(url, { headers: { key: value } })

Question 4/15

In the context of RESTful APIs, what does the acronym CRUD stand for?

Select your answer

Calculate, Regulate, Use, Destroy

Connect, Retrieve, Undo, Do

Compile, Run, Update, Debug

Create, Read, Update, Delete

Question 5/15

Which of the following is a popular library for serving RESTful APIs in Node.js?

Select your answer

Lodash

Express.js

React

Webpack

Question 6/15

When using the Fetch API in JavaScript, which method is used to parse the response as JSON?

Select your answer

response.json()

response.text()

response.parse()

response.xml()

Question 7/15

In a React component, where is it most appropriate to make a RESTful API call to fetch initial data?

Select your answer

In the componentDidMount lifecycle method

In the render method

In the componentDidUpdate lifecycle method

In the constructor method

Question 8/15

What does CORS stand for, and why is it important in the context of RESTful APIs?

Select your answer

Cross-Origin Resource Sharing, it allows restricted resources on a web page to be requested from another domain outside the domain from which the first resource was served

Content-Origin Response Standard, it standardizes content types across domains

Central-Origin Resource Storing, it stores resource data centrally

Cross-Origin Response Specification, it specifies how responses should be exchanged between domains

Question 9/15

Which keyword is required in a function to define it as an asynchronous function using async/await?

Select your answer

async

fetch

promise

await

Question 10/15

How can you handle errors when making a RESTful API call using the Fetch API?

Select your answer

By using an error event listener

By using the catch method on the Promise

By catching exceptions with a try-catch block

By checking for an HTTP 500 status code

Question 11/15

What does the HTTP 201 status code signify in the context of a RESTful API?

Select your answer

The server failed to process the request

The client's request is authorized

A resource has been successfully created

The requested resource has been permanently moved

Question 12/15

How should a RESTful API handle requests to endpoints that are no longer available?

Select your answer

Ignore the request

Return a 404 status code

Provide a detailed error message without a status code

Redirect to a new endpoint

Question 13/15

In which scenario would you use the HTTP PATCH method when working with RESTful APIs?

Select your answer

To upload large files to the server

To retrieve a resource

To partially update a resource

To delete a resource

Question 14/15

Which hook would you use in a functional component to perform a cleanup operation on component unmount in React?

Select your answer

useContext

useReducer

useState

useEffect

Question 15/15

In RESTful services, what concept refers to clients being able to follow links provided in a response to discover related resources?

Select your answer

Statelessness

Uniform Interface

Hypermedia as the engine of application state (HATEOAS)

Scalability

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 Your answer was correct 🙁 Your answer was incorrect

In RESTful APIs, what is the typical use of query parameters in a URL?

Available answers

To authenticate the request

To filter or sort resources

To namespacing the API

To define the endpoint's HTTP method

Query parameters are used in RESTful APIs to filter, sort, or paginate resources without altering the resource itself.

Question 2/15

😊 Your answer was correct 🙁 Your answer was incorrect

Consider this code snippet: What does it do? ```javascript fetch('https://api.example.com/data') .then(response => response.json()) .then(data => console.log(data)); ```

fetch('https://api.example.com/data')
  .then(response => response.json())
  .then(data => console.log(data));

Available answers

Sends JSON data to the server

Logs the entire fetch response to the console

Fetches data from the server and logs the parsed result

Throws an error because JSON parsing is incorrect

The code fetches data from the API endpoint, parses the JSON response, and logs it to the console.

Question 3/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is the correct way to set headers for a RESTful API request using the Fetch API?

fetch('https://api.example.com/data', {
  method: 'GET',
  headers: { 'Content-Type': 'application/json' }
});

Available answers

fetch(url, { headers: new Headers({ id: value }) })

fetch(url, headers: { 'Content-Type': 'application/json' })

fetch(url, { method: 'GET', body: headers })

fetch(url, { headers: { key: value } })

Headers can be set in the options object passed to fetch, typically within the headers property.

Question 4/15

😊 Your answer was correct 🙁 Your answer was incorrect

In the context of RESTful APIs, what does the acronym CRUD stand for?

Available answers

Calculate, Regulate, Use, Destroy

Connect, Retrieve, Undo, Do

Compile, Run, Update, Debug

Create, Read, Update, Delete

CRUD stands for Create, Read, Update, Delete, which are the basic operations that can be performed on data via RESTful APIs.

Question 5/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which of the following is a popular library for serving RESTful APIs in Node.js?

Available answers

Lodash

Express.js

React

Webpack

Express.js is a minimal and flexible Node.js web application framework that provides a robust set of features for web and mobile applications, often used for building RESTful APIs.

Question 6/15

😊 Your answer was correct 🙁 Your answer was incorrect

When using the Fetch API in JavaScript, which method is used to parse the response as JSON?

Available answers

response.json()

response.text()

response.parse()

response.xml()

response.json() is the method used to parse the body of the response as JSON data.

Question 7/15

😊 Your answer was correct 🙁 Your answer was incorrect

In a React component, where is it most appropriate to make a RESTful API call to fetch initial data?

Available answers

In the componentDidMount lifecycle method

In the render method

In the componentDidUpdate lifecycle method

In the constructor method

The componentDidMount lifecycle method is best for making initial API calls after the component mounts.

Question 8/15

😊 Your answer was correct 🙁 Your answer was incorrect

What does CORS stand for, and why is it important in the context of RESTful APIs?

Available answers

Cross-Origin Resource Sharing, it allows restricted resources on a web page to be requested from another domain outside the domain from which the first resource was served

Content-Origin Response Standard, it standardizes content types across domains

Central-Origin Resource Storing, it stores resource data centrally

Cross-Origin Response Specification, it specifies how responses should be exchanged between domains

CORS stands for Cross-Origin Resource Sharing. It is a security feature that allows or restricts requested resources on a web page from a different domain.

Question 9/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which keyword is required in a function to define it as an asynchronous function using async/await?

Available answers

async

fetch

promise

await

The async keyword is used to define an asynchronous function, enabling the use of await within it.

Question 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you handle errors when making a RESTful API call using the Fetch API?

Available answers

By using an error event listener

By using the catch method on the Promise

By catching exceptions with a try-catch block

By checking for an HTTP 500 status code

You can handle errors by using the catch method on the Promise returned by fetch.

Question 11/15

😊 Your answer was correct 🙁 Your answer was incorrect

What does the HTTP 201 status code signify in the context of a RESTful API?

Available answers

The server failed to process the request

The client's request is authorized

A resource has been successfully created

The requested resource has been permanently moved

The 201 status code indicates that a request has resulted in the successful creation of a resource.

Question 12/15

😊 Your answer was correct 🙁 Your answer was incorrect

How should a RESTful API handle requests to endpoints that are no longer available?

Available answers

Ignore the request

Return a 404 status code

Provide a detailed error message without a status code

Redirect to a new endpoint

The API should return a 404 status code to indicate that the endpoint is no longer available.

Question 13/15

😊 Your answer was correct 🙁 Your answer was incorrect

In which scenario would you use the HTTP PATCH method when working with RESTful APIs?

Available answers

To upload large files to the server

To retrieve a resource

To partially update a resource

To delete a resource

The PATCH method is used for making partial updates to a resource, unlike PUT, which replaces the entire resource.

Question 14/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which hook would you use in a functional component to perform a cleanup operation on component unmount in React?

Available answers

useContext

useReducer

useState

useEffect

useEffect is the hook used for cleanup operations. By returning a function inside useEffect, you can perform cleanup on component unmount.

Question 15/15

😊 Your answer was correct 🙁 Your answer was incorrect

In RESTful services, what concept refers to clients being able to follow links provided in a response to discover related resources?

Available answers

Statelessness

Uniform Interface

Hypermedia as the engine of application state (HATEOAS)

Scalability

HATEOAS (Hypermedia as the Engine of Application State) refers to a constraint of the REST application architecture that allows clients to dynamically navigate to related resources using links provided in the server responses.