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Vue.js and RESTful APIs Quiz

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Question 1/15

Which Vue.js feature allows you to dynamically bind HTML attributes to data properties?

Select your answer

v-model

v-bind

v-on

v-for

Question 2/15

In Vue.js, which lifecycle hook is most commonly used for fetching data from a REST API?

Select your answer

beforeCreate

updated

mounted

created

Question 3/15

What is the benefit of using async/await over traditional Promise chains when fetching data in Vue.js?

Select your answer

It directly improves the application performance.

It ensures no errors will occur.

It makes asynchronous code look synchronous and easier to read.

It reduces the number of network requests made.

Question 4/15

When an API returns paginated data, how can you handle this in a Vue.js application?

Select your answer

By designing the component to fetch additional pages as needed based on user interaction.

By storing all data in local files for performance.

By using Vuex getters to fetch all pages automatically.

By converting paginated data into a single array at once.

Question 5/15

Which header is commonly included in requests to REST APIs to specify the expected response format in a Vue.js app?

Select your answer

Content-Type: text/plain

Cache-Control: no-cache

Authorization: Bearer token

Accept: application/json

Question 6/15

Why is cross-origin resource sharing (CORS) important when working with RESTful APIs in Vue.js?

Select your answer

It enhances CSS and HTML styling.

It enables synchronous data fetching.

It disables all security for development purposes.

It allows cross-domain requests in the browser.

Question 7/15

What HTTP method is typically used to retrieve data from a RESTful API when working with a Vue.js application?

Select your answer

GET

PUT

POST

DELETE

Question 8/15

How can you access query parameters from a URL in a Vue.js application using Vue Router?

Select your answer

Using document.querystring to parse the URL manually.

Using this.$route.query inside a component.

Using window.location.getQuery() in the global scope.

Stored directly in the Vuex state by default.

Question 9/15

Which JavaScript feature allows for handling asynchronous operations, such as API calls, in Vue.js?

Select your answer

Try-catch

Synchronous loops

Promises

setTimeout

Question 10/15

What does the 'async' keyword signify in front of a function in Vue.js scripts?

Select your answer

That the function is a synchronous operation.

That the function will run multiple times.

That the function contains asynchronous operations that return a promise.

That the function executes during page load.

Question 11/15

How do you iterate over an array of data retrieved from a RESTful API in a Vue.js component template?

Select your answer

Using the v-bind directive.

Using the v-for directive.

Using the @click directive.

Using the v-if directive.

Question 12/15

What would you use to ensure that API data updates when navigating back to a Vue.js component using Vue Router?

Select your answer

Listen for the activated lifecycle hook from a keep-alive component.

Rely on the beforeRouteEnter hook for all updates.

Use static data and manually reload the page.

Use Vue Router history mode only.

Question 13/15

How can you send a POST request to a RESTful API using Axios in a Vue.js component?

axios.post('/api/data', { name: 'John Doe' })
  .then(response => {
    console.log(response);
  })
  .catch(error => {
    console.error(error);
  });

Select your answer

Using the Axios post method with the URL and data object.

Using the Axios get method with the URL and data object.

Using Vue-resource's $http.post method.

Sending a request using fetch API with a GET request.

Question 14/15

What is the purpose of the v-if directive when working with REST API data in Vue.js?

Select your answer

To bind a value to input fields.

To loop through all elements in an array.

To conditionally render an element based on a boolean condition.

To handle event listeners.

Question 15/15

Which Vue.js feature closely integrates with RESTful APIs for real-time data fetching and updating?

Select your answer

Vue transitions

Vuex store actions and mutations

Vue component slots

Vue CLI

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which Vue.js feature allows you to dynamically bind HTML attributes to data properties?

Available answers

v-model

v-bind

v-on

v-for

The v-bind directive is used in Vue.js to bind HTML attributes to Vue data properties or expressions, allowing for dynamic updates.

Question 2/15

😊 Your answer was correct 🙁 Your answer was incorrect

In Vue.js, which lifecycle hook is most commonly used for fetching data from a REST API?

Available answers

beforeCreate

updated

mounted

created

The created lifecycle hook is used to fetch data from an API as soon as the Vue instance is created. This allows the data to be available immediately after the instance is initialized.

Question 3/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is the benefit of using <code>async/await</code> over traditional Promise chains when fetching data in Vue.js?

Available answers

It directly improves the application performance.

It ensures no errors will occur.

It makes asynchronous code look synchronous and easier to read.

It reduces the number of network requests made.

The async/await syntax simplifies async code by making it look and be structured in a synchronous manner, which enhances code readability and maintenance.

Question 4/15

😊 Your answer was correct 🙁 Your answer was incorrect

When an API returns paginated data, how can you handle this in a Vue.js application?

Available answers

By designing the component to fetch additional pages as needed based on user interaction.

By storing all data in local files for performance.

By using Vuex getters to fetch all pages automatically.

By converting paginated data into a single array at once.

Paginated data in APIs can be handled by incrementally fetching data pages as required based on user requests such as scrolling or clicking through pages, thus optimizing performance.

Question 5/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which header is commonly included in requests to REST APIs to specify the expected response format in a Vue.js app?

Available answers

Content-Type: text/plain

Cache-Control: no-cache

Authorization: Bearer token

Accept: application/json

The Accept: application/json header is used to tell the server that the client expects JSON formatted data in response.

Question 6/15

😊 Your answer was correct 🙁 Your answer was incorrect

Why is cross-origin resource sharing (CORS) important when working with RESTful APIs in Vue.js?

Available answers

It enhances CSS and HTML styling.

It enables synchronous data fetching.

It disables all security for development purposes.

It allows cross-domain requests in the browser.

CORS is a security feature implemented by browsers to allow or restrict requests that are made cross-domain, essential for frontend applications calling remote APIs.

Question 7/15

😊 Your answer was correct 🙁 Your answer was incorrect

What HTTP method is typically used to retrieve data from a RESTful API when working with a Vue.js application?

Available answers

GET

PUT

POST

DELETE

The GET method is used to request data from a specified resource. It is commonly used to fetch data from RESTful APIs in a Vue.js application.

Question 8/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you access query parameters from a URL in a Vue.js application using Vue Router?

Available answers

Using <code>document.querystring</code> to parse the URL manually.

Using <code>this.$route.query</code> inside a component.

Using <code>window.location.getQuery()</code> in the global scope.

Stored directly in the Vuex state by default.

Vue Router provides access to query parameters through this.$route.query, which can be used within any component using Vue Router for client-side routing.

Question 9/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which JavaScript feature allows for handling asynchronous operations, such as API calls, in Vue.js?

Available answers

Try-catch

Synchronous loops

Promises

setTimeout

Promises are used in JavaScript to handle asynchronous operations such as API calls. They allow you to chain operations and handle success and failure cases.

Question 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

What does the 'async' keyword signify in front of a function in Vue.js scripts?

Available answers

That the function is a synchronous operation.

That the function will run multiple times.

That the function contains asynchronous operations that return a promise.

That the function executes during page load.

The async keyword allows you to write asynchronous functions using syntax that makes them look synchronous. Inside these functions, you can use await to wait for a promise to resolve.

Question 11/15

😊 Your answer was correct 🙁 Your answer was incorrect

How do you iterate over an array of data retrieved from a RESTful API in a Vue.js component template?

Available answers

Using the <code>v-bind</code> directive.

Using the <code>v-for</code> directive.

Using the <code>@click</code> directive.

Using the <code>v-if</code> directive.

The v-for directive is used to render a list of items by iterating over an array or an object in a Vue.js template.

Question 12/15

😊 Your answer was correct 🙁 Your answer was incorrect

What would you use to ensure that API data updates when navigating back to a Vue.js component using Vue Router?

Available answers

Listen for the <code>activated</code> lifecycle hook from a keep-alive component.

Rely on the <code>beforeRouteEnter</code> hook for all updates.

Use static data and manually reload the page.

Use Vue Router history mode only.

The activated lifecycle hook is triggered when a component is re-entered due to navigation and is used to refresh or update data when returning to a cached component.

Question 13/15

😊 Your answer was correct 🙁 Your answer was incorrect

How can you send a POST request to a RESTful API using Axios in a Vue.js component?

axios.post('/api/data', { name: 'John Doe' })
  .then(response => {
    console.log(response);
  })
  .catch(error => {
    console.error(error);
  });

Available answers

Using the Axios <code>post</code> method with the URL and data object.

Using the Axios <code>get</code> method with the URL and data object.

Using Vue-resource's <code>$http.post</code> method.

Sending a request using fetch API with a GET request.

The code snippet shows how to send a POST request using Axios by providing the URL and the data to be sent. This allows you to submit data to the server's endpoint.

Question 14/15

😊 Your answer was correct 🙁 Your answer was incorrect

What is the purpose of the <code>v-if</code> directive when working with REST API data in Vue.js?

Available answers

To bind a value to input fields.

To loop through all elements in an array.

To conditionally render an element based on a boolean condition.

To handle event listeners.

The v-if directive is used to conditionally render elements based on a boolean expression, such as whether the data from a REST API has been successfully fetched.

Question 15/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which Vue.js feature closely integrates with RESTful APIs for real-time data fetching and updating?

Available answers

Vue transitions

Vuex store actions and mutations

Vue component slots

Vue CLI

Vuex store actions are designed to handle asynchronous operations like data fetching from RESTful APIs, and mutations update the state based on the result, thus enabling real-time updates.