Financial Software & Systems Data Analyst Interview Questions and Answers

Contains math aptitide and basic tableau questions

Sql coding test with joins sub queries and stored procedures

Hackerearth problem on reversing the string & one more array question

Q1. Reverse the string
Ans. 
Reverse a given string
• Use built-in functions like reverse() in Python

• Iterate through the string in reverse order and append characters to a new string

• Use stack data structure to reverse the string
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Q2. SQL based windowing function
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Q1. Asked about projects. What is classification? Is knn used for regression?how? decision tree working for regression and classification Is naive Bayes used for regression?how? LLM Docker Aws GenAI Code for ...read more
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Q1. Basic pandas questions on dataframes
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Q2. Some quiz questions
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Q1. What is Machine Learning, Difference among AI, ML and DL
Ans. 
Machine Learning is a subset of Artificial Intelligence that uses algorithms to learn from data and make predictions.
• AI (Artificial Intelligence) is the broader concept of machines being able to carry out tasks in a way that we would consider 'smart'.

• ML (Machine Learning) is a subset of AI that focuses on the development of computer programs that can access data and use it to learn for themselves.

• DL (Deep Learning) is ...read more
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Q2. Evaluation Metrics for Classification
Ans. 
Evaluation metrics are used to assess the performance of classification models.
• Common evaluation metrics include accuracy, precision, recall, F1 score, and ROC-AUC.

• Accuracy measures the overall correctness of the model's predictions.

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

• Recall measures the proportion of true positive predictions out of all actual positives.

• F1 sco...read more
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Q1. Window Function of SQL
Ans. 
Window functions in SQL allow you to perform calculations across a set of table rows related to the current row.
• Window functions are used to perform calculations on a set of rows related to the current row.

• They do not reduce the number of rows returned by the query.

• Common window functions include ROW_NUMBER(), RANK(), DENSE_RANK(), and NTILE().
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Q2. Index and Procedure in SQL
Ans. 
Indexes are used to improve the performance of SQL queries by allowing faster data retrieval. Procedures are reusable SQL code blocks.
• Indexes are used to quickly locate data without having to scan the entire table.

• Procedures are stored SQL code blocks that can be executed multiple times.

• Indexes can be created on columns to speed up search queries.

• Procedures can accept input parameters and return results.
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Q1. Salary Expectation
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Q2. Location Preferemce
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Q1. Excel word and other
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Q2. Microsoft Excel word
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Q1. What is your salary expectation
Ans. 
My salary expectation is based on my experience, skills, and the market rate for Data Analyst positions.
• Consider my years of experience in data analysis

• Research the average salary for Data Analysts in this location

• Factor in any additional skills or certifications I bring to the table
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Q2. What skills you have
Ans. 
I have strong analytical skills, proficiency in data analysis tools, and excellent communication skills.
• Strong analytical skills

• Proficiency in data analysis tools (e.g. Excel, SQL, Python)

• Excellent communication skills (both written and verbal)
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Q3. About previous company
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