SHYENA TECH YARNS Interview Questions and Answers

Q1. Machine learning types?
Ans. 
Machine learning types include supervised learning, unsupervised learning, and reinforcement learning.
• Supervised learning involves training a model on labeled data to make predictions.

• Unsupervised learning involves finding patterns in unlabeled data.

• Reinforcement learning involves learning through trial and error based on rewards and punishments.
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Q2. Classification metrics in ML?
Ans. 
Classification metrics are used to evaluate the performance of machine learning models in predicting categorical outcomes.
• Common classification metrics include accuracy, precision, recall, F1 score, and ROC-AUC.

• Accuracy measures the proportion of correctly classified instances out of total instances.

• Precision measures the proportion of true positive predictions out of all positive predictions.

• Recall measures the propor...read more
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Basic SQL and Python questions
Dml and ddl difference,drop,delete,truncate difference,basic python data types,reverse number without converting to string,list,tuple difference.what is global and local variable.query execution sequence. List comprehension for even numbers code.

Q1. Co-founder directly said we dont have vaccancy for this position....even they have taken aptitude and called for next round by themselves and ended interview without asking any technical interview
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The aptitude test for the React JS intern position at Sheyana Tech Yarn included questions on fundamental web development and React concepts. They asked about Higher-Order Components (HOC), state, props, callback functions, meta tags, the CSS box model, and the differences between var, let, and const. The questions were descriptive, testing both basic and advanced knowledge in these areas.

Coding Questions- Start Pattern, Fibonacci Series, Sorting, Ascending order, Vowels count
theory Question- Hashset, LinkedHashset, treeset, Overloading, Overriding, multithreading, interface, Abstraction