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Data science interview questions?

1. What is data science? What would be the important components?2. Explain three types of learning: supervised learning, unsupervised learning, reinforcement learning.3. What do you understand by the terms classification and regression in machine learning?4. How would you handle missing values and outliers in a dataset?5. What is feature engineering, and why is feature engineering …

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java interview questions ?

1. What’s the difference between JDK, JRE, and JVM?2. Difference between an abstract class and an interface3. What’s the difference between checked and unchecked exceptions in Java?4. What’s the final keyword in Java? The mechanism and how it works?5. How does garbage collection work in Java?6. What’s the difference between == and.equals() method in Java?7. …

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