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React and RESTful APIs Quiz

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Question 1/15

In RESTful API terminology, what does it mean to "deprecate" an endpoint?

Select your answer

Clients should immediately stop using it

It indicates an endpoint is outdated and intended to be removed in the future

The endpoint has more security but less functionality

It means the endpoint is being updated to a new version

Question 2/15

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

Select your answer

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

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

Central-Origin Resource Storing, it stores resource data centrally

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

Question 3/15

When using async/await syntax, how do you handle errors from a RESTful API request?

Select your answer

By using try-catch blocks

By using error callbacks

By ignoring them, since async/await handles errors automatically

By using a catch method

Question 4/15

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 delete a resource

To retrieve a resource

To partially update a resource

Question 5/15

Which of the following tools can be used to simulate RESTful API calls during development in React?

Select your answer

Redux

Postman

Babel

Webpack

Question 6/15

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

Select your answer

Uniform Interface

Hypermedia as the engine of application state (HATEOAS)

Statelessness

Scalability

Question 7/15

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

Select your answer

By catching exceptions with a try-catch block

By using the catch method on the Promise

By using an error event listener

By checking for an HTTP 500 status code

Question 8/15

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: { 'Content-Type': 'application/json' })

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

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

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

Question 9/15

When using Axios, which function is commonly used to handle data transformation before it is sent to the server?

axios.post('/user', {name: 'John'}, {
  transformRequest: [(data, headers) => {
    // Transform the data
    return data;
  }]
});

Select your answer

transformRequest

beforeSend

transformResponse

dataValidator

Question 10/15

In a RESTful API context, which best practice encourages using consistent naming conventions and structures for endpoints?

Select your answer

Concrete URL structure

Use of nouns for endpoints

Hypermedia as the engine of application state (HATEOAS)

Stateless interaction

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

A resource has been successfully created

The client's request is authorized

The requested resource has been permanently moved

Question 12/15

Which status code is returned when a RESTful API request is unauthorized and authentication has failed or hasn't been provided?

Select your answer

200

403

301

401

Question 13/15

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

Select your answer

To filter or sort resources

To define the endpoint's HTTP method

To namespacing the API

To authenticate the request

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

useReducer

useContext

useState

useEffect

Question 15/15

What is the primary purpose of using RESTful APIs in a React application?

Select your answer

To handle browser events

To create a user interface

To fetch data from a server

To manage the application's state

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 Your answer was correct 🙁 Your answer was incorrect

In RESTful API terminology, what does it mean to "deprecate" an endpoint?

Available answers

Clients should immediately stop using it

It indicates an endpoint is outdated and intended to be removed in the future

The endpoint has more security but less functionality

It means the endpoint is being updated to a new version

To deprecate an endpoint in a REST API means that it is considered outdated, and while it may still be available, it is scheduled to be removed in the future. Clients are encouraged to transition to alternative endpoints.

Question 2/15

😊 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

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

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

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 3/15

😊 Your answer was correct 🙁 Your answer was incorrect

When using async/await syntax, how do you handle errors from a RESTful API request?

Available answers

By using try-catch blocks

By using error callbacks

By ignoring them, since async/await handles errors automatically

By using a catch method

To handle errors with async/await, you wrap the code in a try block and catch errors in the corresponding catch block.

Question 4/15

😊 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 delete a resource

To retrieve a resource

To partially update a resource

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

Question 5/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which of the following tools can be used to simulate RESTful API calls during development in React?

Available answers

Redux

Postman

Babel

Webpack

Postman is a tool commonly used to simulate and test RESTful API calls.

Question 6/15

😊 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

Uniform Interface

Hypermedia as the engine of application state (HATEOAS)

Statelessness

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.

Question 7/15

😊 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 catching exceptions with a try-catch block

By using the catch method on the Promise

By using an error event listener

By checking for an HTTP 500 status code

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

Question 8/15

😊 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: { 'Content-Type': 'application/json' })

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

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

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

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

Question 9/15

😊 Your answer was correct 🙁 Your answer was incorrect

When using Axios, which function is commonly used to handle data transformation before it is sent to the server?

axios.post('/user', {name: 'John'}, {
  transformRequest: [(data, headers) => {
    // Transform the data
    return data;
  }]
});

Available answers

transformRequest

beforeSend

transformResponse

dataValidator

Axios provides the transformRequest function to modify the data before it is sent to the server.

Question 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

In a RESTful API context, which best practice encourages using consistent naming conventions and structures for endpoints?

Available answers

Concrete URL structure

Use of nouns for endpoints

Hypermedia as the engine of application state (HATEOAS)

Stateless interaction

RESTful API endpoints should use nouns to ensure clarity and consistency, representing resources like books, authors, etc.

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

A resource has been successfully created

The client's request is authorized

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

Which status code is returned when a RESTful API request is unauthorized and authentication has failed or hasn't been provided?

Available answers

200

403

301

401

A 401 status code means that the request has not been applied because it lacks valid authentication credentials for the target resource.

Question 13/15

😊 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 filter or sort resources

To define the endpoint's HTTP method

To namespacing the API

To authenticate the request

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

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

useReducer

useContext

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

What is the primary purpose of using RESTful APIs in a React application?

Available answers

To handle browser events

To create a user interface

To fetch data from a server

To manage the application's state

RESTful APIs are used in React applications primarily to fetch data from a server and interact with backend services.