ValueLabs Interview Questions, Process, and Tips

Q1. Leetcode test for a card game
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Q1. Objection handling
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Q1. Do sorting without higher order functions, Remote notifications
Ans. 
Sorting without higher order functions and remote notifications
• Implement sorting algorithm like bubble sort, selection sort, or insertion sort without using built-in sort functions

• For remote notifications, use Apple Push Notification Service (APNs) to send notifications to users' devices
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Q1. Selenium java oops concepts banking domain
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The test consisted of major java oops questions

Q1. Mostly generic scenarios based questions
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Q1. Explain Transformer Model
Ans. 
Transformer model is a deep learning model that uses self-attention mechanism to process sequential data.
• Utilizes self-attention mechanism to weigh the importance of different input elements

• Does not rely on recurrent or convolutional layers like traditional models

• Introduced in the 'Attention is All You Need' paper by Vaswani et al. in 2017
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Q2. Which one is better Random Forest with 100 internal trees or 100 Decision Trees
Ans. 
Random Forest with 100 internal trees is generally better than 100 Decision Trees.
• Random Forest reduces overfitting by averaging multiple decision trees

• Random Forest is more robust to noise and outliers compared to individual decision trees

• Random Forest can handle missing values and maintain accuracy

• Random Forest is less likely to be biased by imbalanced datasets
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