Mckinley Rice Interview Questions, Process, and Tips

First round was mostly based on emotional intelligence which can be easily cracked

Q1. What is shared operator in mongodb?
Ans. 
The $shared operator in MongoDB is used to perform set intersection between arrays.
• Used to find common elements between arrays

• Returns an array containing elements that appear in all input arrays

• Syntax: { $shared: { arrays: [ , , ... ] } }

• Example: { $shared: { arrays: [ [1, 2, 3], [2, 3, 4] ] } } returns [2, 3]
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Q2. Write about microservices
Ans. 
Microservices are a software development technique where applications are composed of small, independent services that communicate with each other.
• Microservices break down applications into smaller, loosely coupled services that can be developed, deployed, and scaled independently.

• Each microservice is responsible for a specific business function and communicates with other services through APIs.

• Microservices promote fl...read more
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They asked basic questions abut the domain and there will be preliminary round which u need to score 80%

EQ/IQ TEST, Verbal reasoning

Core assesment related to business development and executive

Permutations , blood relations,time,speed and distance,

Impact of social media

Q1. What is MVC archietuture?
Ans. 
MVC architecture is a software design pattern that separates an application into three main components: Model, View, and Controller.
• Model represents the data and business logic of the application

• View is responsible for displaying the data to the user

• Controller acts as an intermediary between Model and View, handling user input and updating the Model accordingly
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Q2. What is the distinguish between a class component from functional component?
Ans. 
Class components are ES6 classes that extend from React.Component, while functional components are just JavaScript functions.
• Class components are ES6 classes that extend from React.Component

• Functional components are just JavaScript functions

• Class components have access to lifecycle methods like componentDidMount, componentDidUpdate, etc.

• Functional components are simpler and more lightweight

• With the introduction of Reac...read more
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Eq and iq test that contain you emotions management

Q1. $lookup in mongodb
Ans. 
The $lookup operator in MongoDB is used to perform a left outer join between two collections.
• Used to combine data from two collections based on a common field

• Requires a local field and a foreign field to match documents

• Returns an array of documents that include matched data from both collections
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Q2. $graphlookup in mongo db
Ans. 
The $graphlookup operator in MongoDB is used to perform recursive queries on graph-like data structures.
• Used to perform recursive queries on graph-like data structures

• Can be used to traverse relationships between documents in a collection

• Helps in querying hierarchical data structures
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EQ IQ VERBAL REASONING AND LOGICAL REASONING TEST WERE THERE

MERN RELATED MCQs AND QUESTIONS TO WRITE ABOUT

This round consists of aptitude+reasoning

In this round there were four Node js questions

Q1. Company doesn't came for interview after coding round
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