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Essential Services Outsource Full Stack Web Developer Interview Questions and Answers

Updated 5 Apr 2023

Essential Services Outsource Full Stack Web Developer Interview Experiences

1 interview found

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Internshala and was interviewed before Apr 2022. There were 2 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(3 Questions)

  • Q1. How to upload multiple files with AJAX
  • Ans. 

    Multiple files can be uploaded using AJAX by sending a FormData object containing the files.

    • Create a FormData object

    • Append each file to the FormData object

    • Send the FormData object using AJAX

  • Answered by AI
  • Q2. What are promises in javascript
  • Ans. 

    Promises are a way to handle asynchronous operations in JavaScript.

    • Promises represent a value that may not be available yet.

    • They can be in one of three states: pending, fulfilled, or rejected.

    • Promises can be chained together using .then() and .catch() methods.

    • They help avoid callback hell and make code more readable.

    • Example: fetch() returns a promise that resolves with the response object.

  • Answered by AI
  • Q3. Promises in javascript is a good way to handle asynchronous operations . With the help of promises we can check if the operation was successful or not .

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't be too nervous and be confident on your knowledge . Just try to revise the concept you've learned earlier and don't go for learning new things 1 day or 1 hour before the interview .

Skills evaluated in this interview

Interview questions from similar companies

Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Difference between let, var and const.
  • Ans. 

    let, var and const are all used for variable declaration in JavaScript, but they have different scopes and behaviors.

    • let has block scope, var has function scope, and const is a constant that cannot be reassigned.

    • let and const are hoisted but not initialized, while var is hoisted and initialized with undefined.

    • Using const for objects and arrays does not make them immutable, only the reference is constant.

  • Answered by AI

Skills evaluated in this interview

Interview experience
4
Good
Difficulty level
Moderate
Process Duration
4-6 weeks
Result
Selected Selected

I applied via Campus Placement and was interviewed before Feb 2023. There were 2 interview rounds.

Round 1 - Coding Test 

There was 2 DSA coding questions and 2 SQL query questions. Level of questions were medium

Round 2 - One-on-one 

(1 Question)

  • Q1. Question were like basic knowledge of OOPS, basic coding questions, hr questions and puzzle questions were asked
Interview experience
3
Average
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(1 Question)

  • Q1. Ask questions related to CSS, Javascript, React, Node and Cloud stuff
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed in Nov 2024. There were 2 interview rounds.

Round 1 - Assignment 

Basic ml , stat , ml topics

Round 2 - One-on-one 

(2 Questions)

  • Q1. Brief about projects
  • Q2. ML interview questions

Interview Preparation Tips

Interview preparation tips for other job seekers - its easy to crack
Interview experience
4
Good
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Aptitude Test 

On campus aptitude test

Round 2 - Technical 

(1 Question)

  • Q1. About oops concepts and java questions
Round 3 - HR 

(1 Question)

  • Q1. Discussion about location and why virtusa
Interview experience
4
Good
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
-

I applied via Naukri.com and was interviewed in Oct 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Quantitative , figure ,mcq question based on tech stack and 2 coding question which are basic. 90 minute time limit.

Round 2 - Technical 

(2 Questions)

  • Q1. Angular question
  • Q2. .net question and sql question
Interview experience
5
Excellent
Difficulty level
-
Process Duration
-
Result
-
Round 1 - Technical 

(2 Questions)

  • Q1. Low level design
  • Q2. High level design
Round 2 - Coding Test 

Leetcode medium to hard question

Interview experience
1
Bad
Difficulty level
Hard
Process Duration
2-4 weeks
Result
No response

I applied via Job Portal and was interviewed in Dec 2024. There were 2 interview rounds.

Round 1 - Aptitude Test 

Worst set of questions

Round 2 - Coding Test 

Advanced DSA for entry level role

Interview Preparation Tips

Interview preparation tips for other job seekers - Don't join this company
Interview experience
5
Excellent
Difficulty level
Easy
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Apr 2024. There were 3 interview rounds.

Round 1 - Web developer 

(4 Questions)

  • Q1. Programmer database
  • Q2. I want to join for the purpose of web developer (python developer)
  • Q3. Yes I am a programmer, in python base programming.
  • Q4. I have good skilling for one HTML,CSS,JAVASCRIPT,JQUERY,MYSQL,DJANGO,PYTHON THANK YOU 🙏🏼
Round 2 - Assignment 

I have created my some project

Round 3 - Web developer 

(2 Questions)

  • Q1. I have some web design
  • Q2. I am showing my project

Interview Preparation Tips

Topics to prepare for Reliance Retail Web Developer interview:
  • Programming
  • Development
  • Python developer
  • Web Designing
Interview preparation tips for other job seekers - I want to join for the position of web developer

Essential Services Outsource Interview FAQs

How many rounds are there in Essential Services Outsource Full Stack Web Developer interview?
Essential Services Outsource interview process usually has 2 rounds. The most common rounds in the Essential Services Outsource interview process are Technical and Resume Shortlist.
What are the top questions asked in Essential Services Outsource Full Stack Web Developer interview?

Some of the top questions asked at the Essential Services Outsource Full Stack Web Developer interview -

  1. How to upload multiple files with A...read more
  2. What are promises in javascr...read more
  3. Promises in javascript is a good way to handle asynchronous operations . With t...read more

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