This Angular, Node.js, Express.js and MongoDB Online Test Separates Good From Bad Hires

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About the test

The Angular, Node.js, Express.js and MongoDB online test evaluates candidates’ knowledge of key concepts required by a full stack engineer who can combine their expertise with Angular, Node.js, Express.js and MongoDB to build full stack applications.

It is an ideal test for pre-employment screening. A good full stack developer, who is using Angular for the front-end, Node.js and Express.js for the backend, and MongoDB as database engine, must be able to create dynamic and interactive user interfaces, as well as build a scalable backend to serve them. Moreover, they must know how to write and analyze MongoDB queries, which are used to communicate with the database.

The online test requires candidates to answer multiple choice, fill-in-the-blank, and coding questions about Angular, Node.js, Express.js, and MongoDB.

Sample public questions

2 min

Which of the following statements about components in Angular are correct?

3 min
Express.js Middleware
HTTP Routing

A blogging application is built using an Express.js backend. The backend serves the frontend code through the public directory and also serves a few static files for the website through the static directory. The code for Express.js application is:

const express = require("express");
const path = require("path");
const app = express();

app.use(express.static(path.join(__dirname, "public")));
app.use("/images", express.static(path.join(__dirname, "static", "images")));
app.use("/files", express.static(path.join(__dirname, "static", "manuals")));

app.listen(80, () => {
  console.log("Blogging app listening on port 80");

Below is the folder structure of the application:

Folder structure of application.

Which endpoints will return a status code of 200 for the above application?

3 min
Database Schema

You work for a mail delivery company and the tracker system uses MongoDB with the following document schema for the "Packages" collection:

  "_id": { "bsonType": "objectId" },
  "destination": { "type": "string" },
  "state": { "enum": ["preparing", "in transit", "delivered"] }

Select all the correct statements about the Packages collection.

3 min

Consider the following package.json for a Node.js application:

  "name": "skill-measure-app",
  "private": true,
  "version": "1.0.0",
  "main": "lib/main.js",
  "scripts": {
    "build": "npm run cleanup & npm run test & npm run publish",
    "cleanup": "rm -fr ./lib",
    "test": "jest",
    "publish": "npm publish lib"
  "dependencies": {
     "jest": "^23.0.1",
     "custom-package": "file:../custom-package"

Select all the correct statements.

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39 more premium Angular, Node.js, Express.js and MongoDB questions

Structural Directive, Cats and Dogs, Clothes, Fahrenheit Converter, Shopping Cart, Weather Data, File Exists, Retry Request, Run Sequentially, Stream Transform, Single Input, Currency Format, Cards Widget, Upgrades, Decimal Pipe, Count Binding, User Form, Toggle Border, Observing Username, Weather Form, Package Declaration, Add Id, Hash Bug, Game Action, Arrange Promises, Optional Ingredient, Dark Mode, Report Summary, Movie Details, Delivery Details, Fish Movement Patterns, Tutoring Platform, Helping a Colleague, Charging Stations, Movie Ratings, Report Generator, The Firm, Deprecated Calculator, Welcome Cookie.

Skills and topics tested

  • Angular
  • Structural Directive
  • Components
  • Services
  • Node.js
  • Modules
  • Events
  • Asynchronous Programming
  • Async-Await
  • Promise
  • JSON
  • Stream
  • Event Binding
  • One-Way Binding
  • Two-Way Binding
  • Angular Pipes
  • Expressions
  • Directives
  • Event Handling
  • Forms
  • Data Binding
  • NPM
  • Event Loop
  • Bug Fixing
  • Event Emitter
  • Exceptions
  • HTTP Routing
  • MongoDB
  • Data Storage
  • NoSQL
  • Sharding
  • Queries
  • Update
  • Indexes
  • Performance Tuning
  • Express.js
  • Express.js Middleware
  • Error Handling
  • HTTP

For job roles

  • Angular Developer
  • Express.js Developer
  • Full-Stack Developer
  • MongoDB Developer
  • Node.js Developer
  • Web Developer

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