COMMONLY ASKED INTERVIEW QUESTION FOR WEB DEVELOPER POSITIONS
The interview portion is undeniably the most critical step in the recruitment process. Hence, it is imperative to be well-prepared for commonly asked questions to answer with the utmost confidence. In this article, Jung Talents will introduce you to some prevalent Web Developer interview questions along with suggested answers.
Frequently Asked Web Developer Interview Questions
Here are the top 5 frequently asked Web Developer interview questions, including essential knowledge for this position, accompanied by basic answer suggestions:
1. What Are the Basic Components of a Website?
To build a website and make it accessible to users, the following basic components are needed:
- Domain: The web address on the Internet. To access the website's content, users need to type the correct web address into the browser's address bar.
- Hosting: A server running on the Internet, responsible for storing data and running your application.
- Source Code: The actual code of the web application. When users access the website, the web application returns the content for user interaction, while updating stored data as needed.
2. Roles of a Web Developer
Web Developers are generally divided into two different directions:
- FrontEnd Developer: Responsible for building the user interface (client-side). Typically, HTML, CSS, and JavaScript are used for designing and creating applications that interact directly with users.
- Backend Developer: Builds applications that run on the server (server-side). The backend's role is to process requests from the client, implement logic, update data in the database if necessary, and return feedback to the client.
If you are responsible for both roles in a project, you are known as a Fullstack Developer, capable of building a complete Web Application using various programming languages.
3. What is DOM, HTML DOM?
DOM, an acronym for Document Object Model, is an application programming interface (API) for accessing HTML and XML documents. The DOM has a tree-like data structure containing nodes, each node having its own attributes for displaying values or accessing data.
HTML DOM defines:
- HTML elements as objects
- Properties and events for all HTML elements
- Methods to access HTML elements
HTML DOM allows you to manipulate web pages, change displayed content, and receive feedback from actions.
4. What is CORS?
CORS, or Cross-Origin Resource Sharing, is a browser mechanism that allows access and control of resources outside a specific domain. CORS exists because of the same-origin policy related to security implemented in all modern browsers. Specifically, a website cannot access and use user information on other websites without permission.
5. What is RESTful API?
API (Application Programming Interface) is a software intermediary that allows two applications to communicate with each other. Typically in a Web application, an API is used to communicate between the frontend client and the backend server. RESTful API is a standard used in designing APIs for Web applications, focusing on resource management (files, images, audio, video, dynamic data, etc.) transmitted via HTTP.
RESTful API is designed to work mainly on CRUD (Create, Read, Update, Delete) methods, equivalent to the four HTTP protocols POST, GET, PUT, and DELETE.
We hope that this set of Web Developer interview questions has equipped you with sufficient knowledge and confidence to overcome any challenges in your upcoming interview. This is just a fraction of what we at Jung Talents can offer to support you in your career journey. We do not just provide information but also serve as a partner in your career. Keep following us for more valuable information and insights.
