BNY Senior Data Management Analyst Interview Questions, Process, and Tips

Q1. Types of Chunking in data preparation in RAG
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Q2. How Embedding works in Vector Databases
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Q3. Explain ARIMA model
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Q4. How can we decide to choose Linear Regression for a business problem
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Q1. What is token and it's limit for Open Source LLMs
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Q2. Difference of a Regression and Time Series problem
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Q3. Advantage of LSTM over RNN
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Q4. Performance Metrics for Logistic Regression
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Q1. What is p value?
Ans. 
A p-value is a measure used in statistical hypothesis testing to determine the strength of evidence against the null hypothesis.
• A p-value is the probability of obtaining results as extreme as the observed results, assuming the null hypothesis is true.

• A p-value is compared to a significance level (usually 0.05) to determine if the null hypothesis should be rejected.

• A p-value less than the significance level indicates st
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Q2. Tell the output a**2
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The output of a**2 is the square of the value of a.
• The output is the value of a multiplied by itself

• For example, if a = 3, then the output would be 9 (3*3)
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Q3. Difference between append() and concat
Ans. 
append() adds elements to a single DataFrame, while concat() combines multiple DataFrames.
• append() is a method used to add rows to a DataFrame.

• concat() is a function used to combine multiple DataFrames along a particular axis.

• append() modifies the original DataFrame, while concat() returns a new DataFrame.

• Example: df1.append(df2) vs pd.concat([df1, df2])
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Q1. Questions on DBMS,ML,SQL,PLSQL,OOPS
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Q2. What is polymorphism
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Polymorphism is the ability of a function or method to behave differently based on the object it is acting upon.
• Polymorphism allows objects of different classes to be treated as objects of a common superclass.

• It enables a single interface to be used for different data types or classes.

• Examples include method overloading and method overriding in object-oriented programming.
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Q3. Polymorphism is abstraction in object oriented lagnguage used for providing too may forms to single entity
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Q4. What is the major issue you faced inml project
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Q5. What is your biggest strength
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Q1. Asked about skillsets & tools used in the current job. I was asked basic questions on SQL & Tableau
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Detailed interview on SQL, Tableau & Alteryx

Q1. Money you want for this position
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Q2. Why to choose this position and not another
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Asked questions from python and SQL

Q1. What are tupples
Ans. 
Tuples are ordered collections of elements, similar to lists but immutable.
• Tuples are created using parentheses ()

• Elements in a tuple can be of different data types

• Tuples are immutable, meaning their elements cannot be changed once created
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Q2. What is credit risk
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Credit risk refers to the potential loss that a lender may incur due to a borrower's failure to repay a loan or meet their financial obligations.
• Credit risk is the risk of default on a debt that may arise from a borrower failing to make required payments.

• It is a key consideration for banks and financial institutions when lending money.

• Factors that contribute to credit risk include the borrower's credit history, financi...read more
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