Express.js Assessment Test is an Intelligently Designed Evaluation Tool for Hiring

About Express.js

Express.js is a web application framework that is designed for building web applications and APIs. It makes a minimal interface to build applications with all the essential tools. It is also noted as the standard server framework for Node.js. It works as the library for many Node web frameworks. For a back-end developer, the knowledge of Express.js becomes very essential because it involves all the basics to work on a framework. It helps in common application settings such as using the port for connection and deciding the location of templates to render the response. Express.js is considered to be fast and asynchronous.

Features that Make Express.js an Unavoidable Framework for Developing Mobile and Web Applications

Server-Side Programming
Express.js reduces the effort in programming by packaging the Node.js features into functions. These functions can be called anywhere in the program.

Page State Retention
Preserve the web page state through their URLs. This URL can be easily shared with other users by taking them to the exact page state.

Debugging
Express.js has a secure debugging mechanism to check routes, middleware functions, application mode, and request-response cycle, etc. 

Templating
Express.js allows dynamic content as it saves the templates on the server-side in HTML format. It makes the application more efficient and the designing process easier.

Middleware
It’s a cluster of codes that can access the request objects, response objects, and the next middleware function. It helps in ending the request-response cycle. 

Database Integration
The user can add and use Node.js modules for the database system in the express.js. Easy and effortless integration of databases enhances the overall efficiency.

About Express.js Assessment Tests
Mobile and web applications are everywhere and Express.js developers are in high demand. The Express.js assessment tests from Mercer | Mettl help evaluate the candidates for their knowledge in various domains of Express.js. 

It is an open-source framework and comes equipped with a robust set of features that help in web and mobile application development. It becomes necessary for an Express developer to have a thorough knowledge of these features and their applications. Express.js assessment test covers all the essential areas to evaluate the candidates. 

As per the need of the industry, the Express.js assessment test is highly recommended because it encompasses various skills. Some of these skills are mentioned below, 

  • Knowledge of Javascript
  • Knowledge of Node.js framework
  • Templating engines
  • Asynchronous programming
  • Using middleware
  • Error handling
  • Debugging
  • Node.js database modules
  • Building Apis and Routing
  • ES6 and Logic

Looking for a customised test?

Are you looking for a customised version of this test. Or looking to get a new test build according to your requirements from scratch? Reach out to our subject matter experts and discuss the same.


Why should you use Mercer | Mettl’s Express.js Assessment Test?

The Express.js assessment tests from Mercer | Mettl takes into account all the updated concepts for the candidate evaluation. It is an MCQ (Multiple Choice Question) based exam that touches all the related topics with well-crafted questions.

The Express.js test comprises questions from various important sections such as Node frameworks, Node, and Rest API, and Node modules. The Express.js test encapsulates basic as well as advanced level questions to check up on the candidate’s knowledge.

An Express.js test also incorporates the question from the other important areas, such as packaging and encryption, routing, validation, functions, data integration, and debugging. Express.js test from Mercer | Mettl ensures that a candidate should be evaluated thoroughly for their knowledge and skills in Express.js.   

Key profiles the test is useful for:

  • Express.js developer
  • Software developer (Express.js)
  • Backend developer (Express.js)
Number of Questions 30
Test Duration 45 Minutes
Test Language English

Section-wise details:

Skills  Number of Questions
Node.js - Events 2
Node.js - Node Frameworks 2
Node.js - Node and Rest API 2
Node.js - Packaging and Encryption 1
Node.js - Basics and NPM 4
Node.js - Node Modules 2
Express JS - Basic 2
Express JS - Routing 2
Express JS - Validation 2
Express JS - Functions 3
Express JS - Implementation 2
Express JS - methods 2
Express JS - Debugging 2
Express JS - Parameters 2

Candidates with a work experience of 2-4 years are eligible to take the test

Difficulty level: Moderate


Answer to common queries:

Q. Can candidates be benchmarked based on the internal sample set?
A. Yes, at Mettl, it can be done. Should you need any further information, please write to us, and we will be happy to assist you.

Q. Is it possible to customize the report as per the need?
A. Yes, we can do it. We have already done it in the past for our clients. Should you need any further information, please write to us, and we will be happy to find the best solution for you.

Q. Do you have separate tests for Express.js and Node.js?
A. Yes, there are separate tests for Express.js and Node.js, respectively, but the Express.js test also incorporates questions related to Node.js because knowledge of Node.js is equally necessary to work on Express.js.

Some Express.js Interview Questions:

A. What is Node.js?
Node.js is a popular server technology that uses JavaScript. It is an open-source environment. It helps you to build a complete website by using only one language.  It is built on an open-source V8 JavaScript engine.

B. What is Express.js?
Express.js provides the framework for Node.js. It comes with various features that help in mobile and web application development.

C. What is the use of Express.js with Node.js?
Node.js uses the HTTP module and with Express.js. In this way, you don’t need to repeat some frequently used codes. It expedites the whole process of coding.

D. What is CLI in Node.js?
The full form of CLI is Command Line Interface. It helps the user type some command or run some script. There are different CLIs for different operating systems. For example, Bash is used on Linux and Terminal on Mac, and likewise, Powershell is a CLI for Windows.

E. List some of the languages that support Node.js?
Node.js uses C, C++, JavaScript. Google has an open-source V8 JavaScript library engine that is used to convert the C++ code into JavaScript code.

F. What is a JavaScript engine?
JavaScript engine is a program that converts the JavaScript codes into an understandable language for the computer processor.

G. What does NPM stand for?
NPM stands for Node Package Manager. NPM is used for installing packages and modules that work as a command-line utility.


How it works:

step 1
Mettl-PBT-1

Add this test to your tests

step 2
Mettl-PBT-2

Share test link from your tests

step 3
Mettl-PBT-3

Candidate take the tests

step 4
Mettl-PBT-4

You get their tests report


Note You will be charged only at step 3. i.e. only when candidate start the test.


Relevant for Industries

  • IT
  • ITeS

Related Tags

Back End Development