Loading... Login Loading... Register

Vue.js and RESTful APIs Quiz

Want to learn more than this quiz offers you? Have a look at my Frontend web development courses.

Create an account and save your quiz results

Login and save your results

First Name *

Last Name *

Email *

Password *

Confirm Password *

I agree to the Terms of Service & Privacy Policy.

Add me to your newsletter.

Question 1/15

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

Select your answer

That the function executes during page load.

That the function is a synchronous operation.

That the function contains asynchronous operations that return a promise.

That the function will run multiple times.

Question 2/15

In Vue.js, what role does the v-model directive play when interacting with API data and forms?

Select your answer

To fetch data automatically from the API upon page load.

To handle HTTP request events.

To enable two-way data binding between form inputs and data properties.

To apply styles to elements dynamically based on data.

Question 3/15

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 @click directive.

Using the v-if directive.

Using the v-for directive.

Using the v-bind directive.

Question 4/15

In Vue.js, how can you manage state that is shared across multiple components when working with RESTful APIs?

Select your answer

Hiding and showing components based on API state.

Using local component data.

Using Vuex to manage state globally.

Using event emitters for every API call.

Question 5/15

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

Select your answer

Use Vue Router history mode only.

Rely on the beforeRouteEnter hook for all updates.

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

Use static data and manually reload the page.

Question 6/15

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

Select your answer

Vue CLI

Vue component slots

Vue transitions

Vuex store actions and mutations

Question 7/15

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

Select your answer

To conditionally render an element based on a boolean condition.

To loop through all elements in an array.

To handle event listeners.

To bind a value to input fields.

Question 8/15

In a Vue component, where should you typically store the response data from a RESTful API?

Select your answer

In Vuex actions.

In the component's data property.

In the component's methods property.

In the component's computed properties.

Question 9/15

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

Sending a request using fetch API with a GET request.

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

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

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

Question 10/15

Which HTTP status code indicates a client error, often due to incorrect input when interacting with a RESTful API?

Select your answer

301

500

400

200

Question 11/15

When integrating RESTful APIs, why is it important to handle errors in Vue.js?

Select your answer

To speed up data loading from the server.

To automatically retry the failed requests indefinitely.

To improve user experience and provide feedback to the user.

To ensure that the component updates correctly.

Question 12/15

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

Select your answer

By using Vuex getters to fetch all pages automatically.

By converting paginated data into a single array at once.

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

By storing all data in local files for performance.

Question 13/15

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

Select your answer

Stored directly in the Vuex state by default.

Using document.querystring to parse the URL manually.

Using this.$route.query inside a component.

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

Question 14/15

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

Select your answer

created

beforeCreate

updated

mounted

Question 15/15

What strategy could you employ to improve the performance of repeated API requests in a Vue.js application?

Select your answer

Caching responses to prevent unnecessary requests to the server.

Repeating the request every minute to update the cache.

Using synchronous requests to ensure first-in-first-out execution.

Minifying the request payload by hand-coding arrays.

Your Results

You did not answer any questions correctly.

Your Answers

Question 1/15

😊 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 executes during page load.

That the function is a synchronous operation.

That the function contains asynchronous operations that return a promise.

That the function will run multiple times.

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 2/15

😊 Your answer was correct 🙁 Your answer was incorrect

In Vue.js, what role does the <code>v-model</code> directive play when interacting with API data and forms?

Available answers

To fetch data automatically from the API upon page load.

To handle HTTP request events.

To enable two-way data binding between form inputs and data properties.

To apply styles to elements dynamically based on data.

The v-model directive is used for two-way data binding between form inputs and Vue.js data properties, which is essential for managing forms and submitting data to APIs.

Question 3/15

😊 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>@click</code> directive.

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

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

Using the <code>v-bind</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 4/15

😊 Your answer was correct 🙁 Your answer was incorrect

In Vue.js, how can you manage state that is shared across multiple components when working with RESTful APIs?

Available answers

Hiding and showing components based on API state.

Using local component data.

Using Vuex to manage state globally.

Using event emitters for every API call.

Vuex is a state management pattern + library for Vue.js applications. It serves as a centralized store for all components in an application, making it ideal for managing state shared across components.

Question 5/15

😊 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

Use Vue Router history mode only.

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

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

Use static data and manually reload the page.

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 6/15

😊 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 CLI

Vue component slots

Vue transitions

Vuex store actions and mutations

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.

Question 7/15

😊 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 conditionally render an element based on a boolean condition.

To loop through all elements in an array.

To handle event listeners.

To bind a value to input fields.

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 8/15

😊 Your answer was correct 🙁 Your answer was incorrect

In a Vue component, where should you typically store the response data from a RESTful API?

Available answers

In Vuex actions.

In the component's data property.

In the component's methods property.

In the component's computed properties.

The response data from an API is usually stored in the component's data property so that it can be used and rendered by the template.

Question 9/15

😊 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

Sending a request using fetch API with a GET request.

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

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

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

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 10/15

😊 Your answer was correct 🙁 Your answer was incorrect

Which HTTP status code indicates a client error, often due to incorrect input when interacting with a RESTful API?

Available answers

301

500

400

200

A 400 status code indicates a bad request, often caused by incorrect input or parameters sent to the API by the client.

Question 11/15

😊 Your answer was correct 🙁 Your answer was incorrect

When integrating RESTful APIs, why is it important to handle errors in Vue.js?

Available answers

To speed up data loading from the server.

To automatically retry the failed requests indefinitely.

To improve user experience and provide feedback to the user.

To ensure that the component updates correctly.

Handling errors provides users with feedback and guidance when something goes wrong, such as when a network request fails. This is crucial for a positive user experience.

Question 12/15

😊 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 using Vuex getters to fetch all pages automatically.

By converting paginated data into a single array at once.

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

By storing all data in local files for performance.

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 13/15

😊 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

Stored directly in the Vuex state by default.

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.

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 14/15

😊 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

created

beforeCreate

updated

mounted

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 15/15

😊 Your answer was correct 🙁 Your answer was incorrect

What strategy could you employ to improve the performance of repeated API requests in a Vue.js application?

Available answers

Caching responses to prevent unnecessary requests to the server.

Repeating the request every minute to update the cache.

Using synchronous requests to ensure first-in-first-out execution.

Minifying the request payload by hand-coding arrays.

Caching reusable API data prevents the client from making repeated identical requests, improving performance by reducing latency and server load.