Pattern Technologies Interview Questions, Process, and Tips

The test had question where we had to speak and record the ansers, there were logical and quant questions too

Q1. Tell me about yourself
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Q2. Why Pattern
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MS Excel, Communication test, Logical - 40 minutes

Q1. Detailed Introduction
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Q2. About past experience
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Basic quants questions related to 10th level . Some basic reasoning questions and some questions related to basic computer applications.

Q1. Basic HR questions like tell me about yourself , what have you done in your internships , questions related to pivot table , v-lookup , and h-lookup, and some situational based questions.
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2 DSA problem, 1 JavaScript problem, 1 React problem

Q1. Scenario based SQL query needs solve using triple join
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Q2. Stack implementation with additional method/function that will always return minimum number present in stack
Ans. 
Implement a stack with a method to return the minimum number in O(1) time complexity
• Create a stack to store numbers and another stack to store minimum numbers encountered so far

• When pushing a number, check if it is smaller than the current minimum and push it to the minimum stack

• When popping a number, check if it is the current minimum and pop from the minimum stack if necessary

• The top of the minimum stack will always
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Q3. Sum of consecutive numbers in circular linked list
Ans. 
To find the sum of consecutive numbers in a circular linked list, iterate through the list and keep track of the sum.
• Iterate through the circular linked list starting from a given node

• Keep track of the sum of consecutive numbers as you traverse the list

• Handle the case when the list loops back to the starting node
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Q4. Explain polymorphism with examples
Ans. 
Polymorphism is the ability of a single function or method to operate on different types of data.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• There are two types of polymorphism: compile-time (method overloading) and runtime (method overriding).

• Example of compile-time polymorphism: function overloading where multiple functions have the same name but different paramete...read more
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Q5. Explain inheritance, its types and examples
Ans. 
Inheritance is a concept in object-oriented programming where a class inherits attributes and methods from another class.
• Types of inheritance: single inheritance, multiple inheritance, multilevel inheritance, hierarchical inheritance

• Examples: Animal class can be inherited by Dog and Cat classes, Vehicle class can be inherited by Car and Bike classes
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Q6. What is React ? What is NPM? Why have you used it in your project
Ans. 
React is a JavaScript library for building user interfaces. NPM is a package manager for JavaScript.
• React is used for creating interactive UI components

• NPM is used for managing dependencies and packages in JavaScript projects

• I used React in my project for its component-based architecture and virtual DOM efficiency

• I used NPM in my project to easily install and manage third-party libraries and tools
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Q1. Introduction ( first question in every round)
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Q2. General questions
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Q1. Introduction / overall feedback for all rounds
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