Clock
Test duration:
60
min
Notes
No. of questions:
31
Tie
Level of experience:

MEAN Stack Developer Test

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About

MEAN Stack Developer Test

A MEAN Stack Developer is a JavaScript-based application programmer who mainly works on the MEAN stack (MongoDB, ExpressJS, AngularJS, NodeJS). Mean stack developers work on both the backend and front end of the application, which is all JavaScript-based; hence, a Mean stack developer must have in-depth knowledge of JavaScript. It helps in developing websites/apps faster and simpler. This uses only one uniform language, which is used for stack development. It helps in developing applications on a rapid base.


MEAN stack Developer skills test has a unique set of questions. You can also create or ask us to customize a test with questions specific to your job requirements.


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

  • Strong knowledge of MongoDB and its functions
  • Good knowledge and experience in using ExpressJS
  • Good experience in handling all functions related to AngularJS and web development
  • Experience in implementation and other functions of Node.js

MEAN Stack Developer Skills test is designed considering EEOC guidelines. It will help you to assess and hire diverse talent without bias.

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How it works

Test Summary

Test Duration
60
No. of Questions
31
Level of Expertise
Useful for hiring
  • MEAN Stack Developer
  • MongoDB Developer
  • AngularJS Developer
  • NodeJS 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:

CRUD

Difficulty:

Mediam

Question:

A collection named "client" has many records that contain the company_name as "ABC LLC". Choose the correct query to update only one record to "DEF LLC".


Options

  • db.client.updateOne({"company_name": "ABC LLC"}, {{"company_name": "DEF LLC"}})
  • db.client.updateOne({"ABC LLC"}, {$set:{"DEF LLC"}})
  • db.client.createOne({"company_name": "ABC LLC"}, {$set:{"company_name": "DEF LLC"}})
  • db.client.updateOne({"company_name": "ABC LLC"}, {$set:{"company_name": "DEF LLC"}})
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