Incedo Team Lead Interview Questions and Answers

Q1. Explain random forest
Ans. 
Random forest is an ensemble learning method that builds multiple decision trees and merges them to improve accuracy and prevent overfitting.
• Random forest is a type of ensemble learning method.

• It builds multiple decision trees during training.

• Each tree is built using a subset of the training data and a random subset of features.

• The final prediction is made by averaging the predictions of all the individual trees.

• Random...read more
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Q2. What is boosting
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Boosting is a machine learning ensemble technique where multiple weak learners are combined to create a strong learner.
• Boosting is an iterative process where each weak learner is trained based on the errors of the previous learners.

• Examples of boosting algorithms include AdaBoost, Gradient Boosting, and XGBoost.

• Boosting is used to improve the accuracy of models and reduce bias and variance.
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Basic speaking test, english

Q1. What is your analysis of the graphs?
Ans. 
The graphs show a steady increase in sales over the past year.
• Sales have been consistently rising month over month.

• There was a significant spike in sales during the holiday season.

• The overall trend is positive and indicates growth in the business.
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Q1. Org fit check questions
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Q1. General hr questions
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Q1. Ab initio questions
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Q1. With the project manager
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Q1. Overall experience and technical questions
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Q1. Final salary and other talks
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Q1. General technical questions
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Q1. React Life cycle methods
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Q2. Machine coding with crypto price api
Ans. 
Using a crypto price API to fetch and display real-time cryptocurrency prices in a machine coding project.
• Utilize a crypto price API to fetch real-time cryptocurrency prices

• Implement error handling for API requests

• Display the fetched prices in a user-friendly format
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Q1. Print greater number using lambda function
Ans. 
Use lambda function to print greater number
• Define a lambda function that takes two parameters

• Use the max() function inside the lambda to compare the two numbers

• Call the lambda function with two numbers to print the greater one
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Q2. Explain OOPs concepts
Ans. 
OOPs concepts refer to Object-Oriented Programming principles like inheritance, encapsulation, polymorphism, and abstraction.
• Inheritance: Allows a class to inherit properties and behavior from another class.

• Encapsulation: Bundling data and methods that operate on the data into a single unit.

• Polymorphism: Ability to present the same interface for different data types.

• Abstraction: Hiding the complex implementation detail
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Q3. All major C++ topics were covered
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Q1. Singleton design pattern
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Q2. Code for Fibonacci series -- both iterative and recursive
Ans. 
Fibonacci series code in iterative and recursive methods
• Iterative method: Use a loop to calculate Fibonacci numbers

• Recursive method: Define a function that calls itself to calculate Fibonacci numbers

• Example for iterative method: int fib(int n) { int a = 0, b = 1, c; for(int i = 2; i <= n; i++) { c = a + b; a = b; b = c; } return b; }

• Example for recursive method: int fib(int n) { if(n <= 1) return n; return fib(n-1) + f
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Q1. Print 1-10 using 2 threads, in correct order
Ans. 
Use two threads to print numbers 1-10 in correct order
• Create two threads, one for printing odd numbers and one for printing even numbers

• Use synchronization mechanisms like mutex or semaphore to ensure correct order

• Example: Thread 1 prints 1, 3, 5, 7, 9 and Thread 2 prints 2, 4, 6, 8, 10
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Q2. How to do Unit testing in C++
Ans. 
Unit testing in C++ involves writing test cases for individual units of code to ensure they work as expected.
• Use a unit testing framework like Google Test or Catch2 to write and run test cases

• Create separate test files for each unit of code being tested

• Use assertions to check the expected behavior of the code under test

• Mock dependencies or use dependency injection to isolate units for testing

• Run tests regularly to catc
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Q1. SCD, PDL Conduct>IT Basic partitioning scenarios
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Q1. Mostly Client round , technical questions
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Q1. Salary discussion and basic details
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