EXL Service Interview Questions, Process, and Tips

30MIN general, reasoning ability

Q1. All process Questions
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Q1. Spark stages,jobs & task
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Q1. What is bias, variance tradeoff in ML
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Bias-variance tradeoff is a key concept in machine learning where a model's ability to generalize is balanced with its complexity.
• Bias refers to the error introduced by approximating a real-world problem, while variance refers to the model's sensitivity to fluctuations in the training data.

• High bias can lead to underfitting, where the model is too simple to capture the underlying patterns in the data.

• High variance can ...read more
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Q2. Explain bias and variance
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Bias is error due to overly simplistic assumptions in the learning algorithm, while variance is error due to too much complexity.
• Bias is the error introduced by approximating a real-world problem, which can lead to underfitting.

• Variance is the error introduced by modeling the noise in the training data, which can lead to overfitting.

• High bias and low variance can result in underfitting, while low bias and high variance...read more
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Q1. Agile technology
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Q1. Microsoft visio
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Q1. About yourself and salary discussion
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Q1. SQL and python medium level questions
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Q1. Process management
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Q2. Shrinkage, Attrition, team management, transition management
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Quality improvement, Handling escalation, wfm, FTE calculation