Chetu Interview Questions, Process, and Tips

Reasoning, math, coding

Q1. MVC ,c#, JavaScript frameworks,.net core
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Q1. Face to face logically question like SQL, server MVC, JavaScript
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Ask multiple choice questions 35 from sql. python. math. time is 35 minutes

Q1. Technical round is on telephone. last for 30 minutes. ask questions on machine learning. Over fitting . what is deep learning . gradient descent . bias variance trade off . linear regression.
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Q2. What is boosting
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Boosting is a machine learning ensemble technique that combines multiple weak learners to create a strong learner.
• Boosting iteratively trains a series of weak learners, where each subsequent learner focuses on the mistakes made by the previous ones.

• Popular boosting algorithms include AdaBoost, Gradient Boosting, and XGBoost.

• Boosting is often used in classification and regression problems to improve predictive performan
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Q3. What is bagging
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Bagging is a machine learning ensemble technique where multiple models are trained on different subsets of the training data and their predictions are combined.
• Bagging stands for Bootstrap Aggregating

• It helps reduce overfitting by combining the predictions of multiple models

• Random Forest is a popular algorithm that uses bagging
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Q4. Why deep learning is called as deep
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Deep learning is called 'deep' because it involves multiple layers of neural networks.
• Deep learning uses multiple layers of neural networks to learn and make decisions.

• Each layer in a deep learning model extracts different features from the input data.

• The depth of the neural network refers to the number of layers it has.

• Deep learning models are able to learn complex patterns and relationships in data.

• Examples of deep l...read more
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Q1. Ask introduction. what is logistic regression. how to remove multicollinearity . what is test error. it last for 20 minutes.
Ans. 
Logistic regression is a statistical model used to predict the probability of a binary outcome based on one or more predictor variables.
• Logistic regression is used when the dependent variable is binary (e.g. 0 or 1).

• To remove multicollinearity in logistic regression, you can use techniques like dropping one of the correlated variables or using regularization methods like Lasso or Ridge regression.

• Test error in logistic...read more
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Q2. How many types of confussion matrix
Ans. 
There are three types of confusion matrices: binary, multi-class, and multi-label.
• Binary confusion matrix is used for classification problems with two classes.

• Multi-class confusion matrix is used for classification problems with more than two classes.

• Multi-label confusion matrix is used for problems where each instance can belong to multiple classes.

• Example: In a binary classification problem, the confusion matrix woul...read more
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Q3. Types of errors
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Types of errors in software development
• Syntax errors: Mistakes in the code structure that prevent it from running

• Logic errors: Flaws in the algorithm that lead to incorrect results

• Runtime errors: Issues that occur while the program is running, such as division by zero

• Semantic errors: Errors in the meaning of the code that may not be caught by the compiler
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Q1. What is dependency Injection
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Dependency Injection is a design pattern where components are given their dependencies rather than creating them internally.
• Dependency Injection helps in achieving loose coupling between classes.

• It allows for easier testing by providing mock dependencies.

• There are three types of Dependency Injection: Constructor Injection, Setter Injection, and Interface Injection.
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Logical questions and some questions related to manual testing

Q1. Got some questions on manual testing like explaining smoke testing,integration testing,beta testing,real time test case scenarios .
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Q2. Real time test scenarios
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Q3. Various test data findings techniques
Ans. 
Various techniques to find test data
• Boundary value analysis

• Equivalence partitioning

• Decision table testing

• State transition testing

• Pairwise testing

• Random testing
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Q1. Oops concepts, synchronisation , SQl query to create database
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