Ascendion Jr. Full Stack Developer Interview Questions: A Detailed Guide

Developer:

Developer In the current tech-savvy environment, to get a junior full-stack developer’s job, one should possess technical expertise, problem-solving skills, and effective communication skills. Ascension is an internationally recognized company for its IT consulting and technology solution services. It hires junior full-stack developers to develop front-end and back-end web applications. The job requires versatility regarding technologies, such as using JavaScript, HTML/CSS, React, Node.js, and databases, among others.

If you are preparing for an Ascendion Jr. Full Stack Developer interview, you need to know the type of questions that can be asked. This is a walkthrough guide through common interview questions for a junior full-stack developer position, both technically and behaviorally. By the time you reach the end of this post, you will have been better equipped to face your interview.

Introduction to Full-Stack Development:

Developer:

First, in order to understand the whole picture, let’s discuss what full-stack development is. A full-stack developer knows both parts of the web application: the front-end (client-side) and the back-end (server-side).
The front-end aspect of the application is the part that a user interacts with. So, building this interface requires knowledge of HTML, CSS, JavaScript, and, of course, frameworks like React or Angular.

These development services focus on the server side of the application; that is, they handle the database, authentication, APIs, and business logic. Some of the technologies used in back-end development include Node.js, Express, SQL/NoSQL databases, and cloud platforms such as AWS or Azure.
A junior full-stack developer should have a basic level of understanding in both these, but not even remotely the same degree of knowledge as the senior counterparts.

Some of the Important Skills for Jr. Full Stack Developers at Ascension:

Developer:

• To get a clue about what sort of questions you will be presented within an Ascendion Jr. Full Stack Developer interview, you need to be aware of the foundational technical skills:
• Front-end: HTML, CSS, JavaScript, React.js, Vue.js, Angular.
• Back-end: Node.js, Express.js, RESTful APIs, GraphQL.
• Database: SQL (MySQL, PostgreSQL), NoSQL (MongoDB).
• Version Control: Git/GitHub.
• Development Tools: NPM, Webpack, Babel, VS Code.
• Testing Framework: Jest, Mocha, Chai, Cypress.
• Soft Skills: Problem-solving, collaboration, communication, and time management.

Armed with that knowledge, let’s take a look at the most common interview questions for a Jr. Full Stack Developer at AAscension.

Technical Interview Questions:

Developer:

1. What is the difference between a client-side and a server-side application?

Why they ask: That gets at your fundamental architecture understanding of web applications.

How to answer:

Client-side. Everything that occurs on the user’s device is referred to as client-side. In other words, it would involve rendering content in a browser and handling user interactions through technologies that include HTML, CSS, JavaScript, and front-end frameworks such as React.

Server-side. It occurs on a server and maintains operations. Here is where a server’s business logic, data storage, and processing take place. Technologies like Node.js, Express, and databases (e.g., MongoDB, MySQL) are all client-side developments.

2. How does HTTP work? What is the difference between HTTP and HTTPS?

What they are asking: This question tests your knowledge of how communication between a client and server happens in web applications.

How to answer :

HTTP stands for HyperText Transfer Protocol, the communication protocol that enables data to be transferred between a client and a server through the Internet It follows stateless functioning and relies on request-response cycles.

HTTPS stands for HyperText Transfer Protocol Secure. It is the secure version of HTTP, andityusese SSL/TLS encryption to protect data exchanged between the client and server. It is mandatory to maintain data privacy and security.

3. What is REST and how to develop a RESTful API?

Developer:

• Why they ask: Most full-stack developers have to work with APIs. Many people are required to handle all sorts of communication from front-end to back-end using RESTful services.
• REST: refers to an architectural style that enables designing networked applications. REST is based on non-stateful communication and utilizes the general HTTP methods such as GET, POST, PUT, and DELETE.
• Implementation: You will create the routes associated with each operation (for example, GET for retrieving data and POST for creating new data). Each operation is associated with a resource, often related to a database entity, such as users or products. Typical tools used to implement REST APIs are Express.js within Node.js.

4. How do you deal with the state in a React application?

Why they ask: React is one of the most widely used JavaScript frameworks for building interactive, dynamic UI. It is state management with very good knowledge to develop a real React app.

How to answer:

State in React is the data that can change over time and depends on what should be rendered in the UI.

• Inside class-based components, it can be done through this. State and this.setState.
• Inside functional components, it can be done using React Hooks like useState().
• If you have a very complex state management case, you use something like Redux or the Context API to make it easy to share that same state between components.

5. What is the difference between SQL and NoSQL databases?

Why they ask: The questions of database paradigms are an essential core skill of full-stack developers. This question tests knowledge of a variety of different database paradigms.

• Relational SQL databases, including MySQL, PostgreSQL, etc. store information in tables in rows and columns; they make use of SQL for querying.
• NoSQL, which includes MongoDB, takes the form of a document, key-value, graph, or wide-column format, and it is generally schema-less and scales more horizontally.

6. What is Node.js? Explain its working process.

Developer:

Why they ask: Node.js is one of the most important back-end technologies for full-stack developers when they have to create scalable and efficient applications.

How to answer:

• Node.js is a JavaScript runtime environment that uses Chrome’s V8 JavaScript engine. This means developers can run JavaScript on the server side.
• It is event-driven and non-blocking, which makes it perfect for building scalable applications, whether web servers or APIs.
  Node.js uses the libuv library to handle asynchronous I/O so that it provides high throughput without blocking the main execution thread.

7. How would you enhance the performance of a website?

Why they ask: Enhancing the performance of a web application is highly crucial in the fast development of user-friendly web applications. It is a question of how you would opt to optimize their performance.

How to answer:

• Minification: Minifying all CSS, JavaScript, and HTML files to minimize file size.
• Lazy Loading: Loading images, scripts, or components just in time, rather than loading everything when the page loads.
• Caching: Applying cache both on the cclientsideandtheserversidee to store data and minimize requests.
• Image Optimization: Compressing images with no compromise in quality.
• Code Splitting: Using tools like Webpack to break code into smaller bundles, which can be loaded selectively at different points.

8. How do you handle version control in a team project?

Why they ask: Git is the collaboration tool for any open source or commercial software development. This question requires you to be familiar with version control workflows.

How to answer :

• Code changes are managed using the Git tool. A developer works on a separate branch, and changes, after checking, are merged into the main or master branch.
• Pull requests for code reviews ensure that code is tested and reviewed before merging.
• Commit changes often with descriptive comments to keep a clean history of project-based work progress.

Behavioral Interview Questions:

Developer:

1. Describe a tricky project you worked on. How do you approach the problem?

Why they ask: This question tests your problem-solving and how you can deliver solutions while having problems. It also shows your experience in working with real-world projects.

How to answer:

Use descriptive language to present one specific instance, discussing:

• The problem or challenge.
• The steps you took to solve it.
• Technologies you used.
• How it played out and what you learned from your blunders.

2. How do you rank tasks when you have several projects or deadlines to work with?

Developer:

Why they want to know: Time management and organization are of the essence in a developer’s life, mainly when working in tight environments.

How to answer:

Detail how you rank tasks to prioritize which may be part of such:

• Bifurcating big projects into smaller workable chunks.
• By use of project management tools, for instance, Jira, and Trello, to monitor progress.
• Discuss with peers to change priorities as needed.

3. How do you respond to critical comments or suggestions of your code?

What they want to know: They want to see if you can take criticism well and be a good team player in a collective environment.

How to answer:

Say to them,

• You welcome constructive criticisms, and thus, learn from the experience.
• Problem-solving by asking questions to understand the feedback better.
• Improving on the advice and leveraging it toward the warning of pitfalls to fall into and prevent such pangs in the future