Clock
Test duration:
60
min
Notes
No. of questions:
23
Tie
Level of experience:

MERN Stack Developer Test

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About

MERN Stack Developer Test

MERN Stack is one of the most popular user-friendly Full Stack Web Development structures. It mainly helps to improve the applications to a great extent. There is no need to learn multiple programming languages for web application development because the MERN stack covers both the front-end and back-end. Some responsibilities which a MERN Stack Developer needs to know are the ability to change wireframes and PSD designs into functional web apps using HTML5, AngularJS, and React in building complex HTML-based solutions, etc.  


The MERN Stack Developer test has been developed and reviewed by our Subject Matter Experts (SMEs) pool. Using powerful reporting, a detailed test analysis helps you make a better hiring decision and predict the candidate’s performance. The MERN Stack Developer skills test is designed considering EEOC guidelines, and it will help you assess and hire diverse talent without bias.


MERN Stack Developer test helps to screen the candidates who possess traits as follows: 

  • Strong knowledge and experience of MongoDB and its concepts
  • Good experience in ExpressJS functions and overall concepts
  • Hands-on experience with ReatJS, AngularJS, HTML, etc 
  • Good experience in NodeJS coding

MERN Stack Developer Skills test may contain MCQs (Multiple Choice Questions), MAQs (Multiple Answer Questions), Fill in the Blanks, Descriptive, Whiteboard Questions, Audio / Video Questions, AI-LogicBox ( AI-based Pseudo-Coding Platform), Coding Simulations, True or False Questions, etc.

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Test Summary

Test Duration
60
No. of Questions
23
Level of Expertise
Useful for hiring
  • MERN Stack Developer
  • MEAN Stack Developer
  • AngularJS Developer
  • Web Developer
  • Full Stack Developer
Topics Covered
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Sample Question
Choose from our 100,000+ questions library or add your own questions to make powerful custom tests.

Question types :

Multiple Option

Topic:

Difficulty:

Hard


Q 1. You have been asked to train « Naive Bayes model for spam detection dataset

Using Python command, what wil you add in the given code at XXXX to deciore, it and train your modal for the given dataset?

import numpy os np

X= nporroyll 3. 2b[1 21 [2.21.[3,21)
Y= nporray(fi.a,a.1))

XXXX

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

from skinamnaive_bayas import

Gaussianna

otf = Gaussianne()

ceataie(x ¥)

Question types :

Multiple Option

Topic:

Machine teaming

Difficulty:

Hard


Q 1. Q2 Lets assume that you have 6 Pandas DataFrome(af) in the below tole.

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074

When the following commend is executed, what hoppens to the DatoFrome?

df= defiinat()
Y= nporray(fi.a,a.1))

Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
Index Code Open High
0 AAPL 19877 70074
1 AAPL 19877 70074
2 AAPL 19877 70074
3 AAPL 19877 70074
4 AAPL 19877 70074
it gives an error becouse of the third row which has on empty string.
None of these

Question types :

Multiple Option

Topic:

Connect reactjs front end to backend

Difficulty:

Easy

Question:

How can we provide a middleware function to any application that enables cross-origin resource and allows restricted access? Which npm package do we need to install?


Options

  • npm install --save cross express-fileupload
  • npm install --save cors local-fileupload
  • npm install --save cors host-fileupload
  • npm install --save cors express-fileupload
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