Microsoft Corporation Machine Learning Engineer Interview Questions and Answers

Q1. Train a Decision Tree based on dataset provided?
Ans. 
Train a Decision Tree based on provided dataset.
• Preprocess the dataset by handling missing values and encoding categorical variables.

• Split the dataset into training and testing sets.

• Train the Decision Tree model on the training set.

• Evaluate the model's performance on the testing set using metrics like accuracy or F1 score.
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Q2. How can you do feature selection?
Ans. 
Feature selection can be done using techniques like filter methods, wrapper methods, and embedded methods.
• Filter methods involve selecting features based on statistical measures like correlation, chi-squared test, etc.

• Wrapper methods use a specific machine learning algorithm to evaluate the importance of features through iterative selection.

• Embedded methods incorporate feature selection within the model training proces...read more
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Mostly Python based coding questions

Q1. SQL and python based questions
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Q2. Statistics questions as well
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Tests basic problem-solving skills and logical reasoning abilities through puzzles and mathematical questions.

Assesses programming skills by solving coding problems, usually focusing on algorithms and data structures.

Q1. Evaluates understanding of technical concepts and knowledge related to the specific job role through questions on subjects like computer science fundamentals and relevant technologies.
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Zoho’s Hiring Process is Completely Biased
Zoho gives priority to Tamil-speaking candidates, and only if there are extra vacancies do they consider people from other states. I cleared all five coding problems, optimized them as requested, and explained my approach clearly. The technical live coding interviewer, Seethu Maria Johnson, even told me that HR would contact me. But instead, I got a rejection email without any explanation.

It feels like Zoho already decides who they want to hire based on regional preference rather than talent. If you're from outside Tamil Nadu, don’t waste your time here—chances are, you won’t even be considered seriously. They show clear partiality in hiring, which is unfair to skilled candidates from other states.

To make things worse, I asked for feedback, but HR (Carmila & Veena C S & Supriya M) simply said "we cannot share the feedback." So, not only is the hiring process biased, but there’s also zero transparency.

Even after Seethu Maria Johnson told me HR would contact me, they just ignored my performance and rejected me without reason.

Final Thought
Zoho might be a good company for Tamil people, but for others, it’s just disappointing and unfair. If you’re from another state, don’t waste your time here—your performance won’t matter, only your region and language will.

Basic data structure coding.

Dynamic programming, Greedy algorithms, Data science related questions

Q1. Why do you want to work at Google?
Ans. 
I want to work at Google because of its cutting-edge technology, diverse and talented team, and the opportunity to make a global impact.
• Google is known for its innovative and advanced technology, which aligns with my passion for machine learning.

• Working at Google would provide me with the opportunity to collaborate with some of the brightest minds in the industry.

• Google's diverse and inclusive work environment fosters ...read more
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Q2. What are your strengths and weaknesses?
Ans. 
My strengths include strong analytical skills and a deep understanding of machine learning algorithms. My weaknesses include a tendency to overthink and a need for perfection.
• Strength: Strong analytical skills

• Strength: Deep understanding of machine learning algorithms

• Weakness: Tendency to overthink

• Weakness: Need for perfection
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Aptitude basic maths and pseudo code output choose the best answer

DS algorithms, General Problem solving

Q1. System Designs questions were asked
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Q2. DBMS questions were asked and other resume related topics were involved in discussion
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