![]() Table of Contents Senior full stack developer interview question and answers 1. Node.js provides an event-driven, non-blocking I/O model suitable for handling concurrent requests and building real-time applications. It allows developers to run JavaScript code on the server side, enabling the creation of scalable and efficient server applications. Node.js: It is a JavaScript runtime built on Chrome's V8 JavaScript engine.Angular provides a comprehensive set of tools, features, and best practices for building responsive user interfaces, managing data binding, and handling complex application logic. It facilitates the development of dynamic and interactive single-page applications (SPAs). ![]() Angular: It is a popular front-end JavaScript framework developed by Google.Express.js helps create server-side logic and APIs that interact with the front end. It simplifies the process of building web applications by providing robust features for handling routes, middleware, and HTTP requests. Express.js: Express.js is a web application framework for Node.js.It provides a scalable, high-performance, and schema-less data storage solution, making it well-suited for handling large amounts of data and accommodating dynamic requirements. MongoDB: MongoDB is a NoSQL database that stores data in a flexible, JSON-like format called BSON (Binary JSON).Here's a brief overview of each component in the MEAN Stack: Storage Efficiency: Denormalization may increase storage requirements due to data redundancy, but it can improve performance by reducing the need for joint operations.Update Anomalies: Denormalization can introduce update anomalies, as changes to data may need to be made in multiple places to maintain consistency.Read Performance: Denormalization improves read performance by eliminating the need for complex joins and allowing for faster data retrieval, especially for complex queries.Data Duplication: Denormalization increases data duplication by storing redundant data in multiple places for faster retrieval and reduced join operations.It introduces redundancy intentionally for performance gains. Process: Denormalization involves combining related tables and duplicating data to reduce the need for joins and simplify queries.Objective: The primary goal of denormalization is to optimize query performance by reducing the number of joins and improving data retrieval speed.At the end of the day, hiring remains an art, a science - and a lot of work. Not every “A” candidate worth hiring will be able to answer them all, nor does answering them all guarantee an “A” candidate. There is more to interviewing than tricky technical questions, so these are intended merely as a guide. Avoid unnecessary images where possible, use CSS.Make fewer HTTP requests, i.e., load as few external resources as possible.Specify the character set at server level.Place all assets on a separate, cookie-free domain.(Also, typically a professionally constructed site should score over 75 percent when analyzed by, which can also serve as a checklist.) The more the engineer is able to list off the top of their head, the more likely they are to do all of the following naturally as they code instead of having to return later. Optimizing websites is an art that few are familiar with. Ensure there is enough content with enough relevant keywords (search engines will penalize your site if all pages are one-sentence pages).Include a meta description on each page.Specify unique titles for each page without exceeding 70 characters.Optimize assets (including minification).Specify a favicon, bonus for specifying browser specific icons.Integrate Google analytics (or alternative).Use vanity/friendly URLs (human readable).Connect the site to the company’s social pages.Using the correct HTML tags for content hierarchy i.e., / / and p.In order to build a site optimized for organic search engine rankings, it is important to implement certain standards throughout the code. This request will use the least amount of bandwidth as it will return no data, simply just a 200 (resource exists) or 404 (resource does not exist) HTTP status. The commonly accepted way to determine if a resource exists, using the above “user” resource as an example, is like so: PUT /users/ (retrieve a user model)ĭetermining whether a resource exists is an action that is frequently required in APIs, but is rarely done correctly according to the RESTful and industry standards. ![]() Instead, a truly RESTful path should only contain nouns-the method used on the endpoint should determine the action. A common mistake when building endpoints is to use descriptive verbs in the path. ![]() The purpose of this question is to test the candidate’s knowledge of RESTful API standards. ![]()
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