Bajaj Finance Data Analyst Interview Questions and Answers

Asked questions of finance and aptitude

Q1. What is machine learning?
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Machine learning is a branch of artificial intelligence that involves developing algorithms and models that enable computers to learn from and make predictions or decisions based on data.
• Machine learning is a subset of artificial intelligence that focuses on developing algorithms that can learn from and make predictions or decisions based on data.

• It involves training models on large datasets to recognize patterns and m...read more
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Q2. What do you know about SQL?
Ans. 
SQL is a programming language used for managing and manipulating relational databases.
• SQL stands for Structured Query Language

• It is used to retrieve and manipulate data in relational databases

• Common SQL commands include SELECT, INSERT, UPDATE, DELETE

• SQL can be used to create tables, indexes, and views

• Examples of SQL databases include MySQL, PostgreSQL, Oracle
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Q3. What you know about software Development?
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Software development involves creating, designing, testing, and maintaining software applications.
• Software development includes coding, testing, debugging, and documenting software applications.

• Developers use programming languages like Java, Python, C++, etc. to write code.

• Agile and Waterfall are common software development methodologies.

• Version control systems like Git are used to manage code changes.

• Software developm...read more
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Q1. What are the algorithms you know in machine learning and their details ?
Ans. 
Various machine learning algorithms with brief details
• Supervised Learning: Linear Regression, Logistic Regression, Support Vector Machines (SVM), Decision Trees, Random Forest

• Unsupervised Learning: K-means Clustering, Hierarchical Clustering, Principal Component Analysis (PCA)

• Reinforcement Learning: Q-Learning, Deep Q-Networks (DQN)

• Neural Networks: Convolutional Neural Networks (CNN), Recurrent Neural Networks (RNN), L
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Q2. Python questions
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Sort an array in place.

Q1. What is dbms explain in its importance
Ans. 
DBMS stands for Database Management System. It is a software that manages databases and allows users to interact with them.
• DBMS helps in organizing and storing data efficiently.

• It provides data security by controlling access to the database.

• DBMS allows for data consistency and integrity through features like transactions and constraints.

• It enables data sharing and collaboration among multiple users.

• Examples of popular ...read more
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Q2. What is computer networking
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Computer networking is the practice of connecting computers and other devices to share resources and information.
• Computer networking involves the use of hardware (such as routers, switches, and cables) and software (such as protocols and operating systems).

• It allows devices to communicate with each other, share data, and access resources like printers and internet connections.

• Examples of computer networking technologie...read more
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Q3. Whant is tcp explainin breif?
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TCP (Transmission Control Protocol) is a communication protocol that ensures reliable and ordered delivery of data packets over a network.
• TCP is a connection-oriented protocol

• It provides error-checking and data integrity

• TCP uses a three-way handshake for connection establishment

• Examples of applications that use TCP include web browsing, email, and file transfer
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Q4. What is probablit?
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Probability is a measure of the likelihood that an event will occur.
• Probability ranges from 0 (impossible) to 1 (certain)

• It is often calculated by dividing the number of favorable outcomes by the total number of possible outcomes

• Example: The probability of rolling a 6 on a fair six-sided die is 1/6 or approximately 0.167
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Q5. What is the use of tcp
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TCP (Transmission Control Protocol) is a communication protocol that ensures reliable and ordered delivery of data packets over a network.
• TCP is one of the main protocols in the Internet protocol suite.

• It provides error-checking, sequencing, and flow control to ensure data integrity and reliability.

• TCP establishes a connection-oriented communication between two devices before data transfer.

• Examples of applications usin...read more
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Q1. Proficiency in data analytics tool level?
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1 hour coding test on intermediate python programming

Q1. Tell me about the types of join sql.
Ans. 
Types of join SQL include inner join, left join, right join, and full outer join.
• Inner join: Returns rows when there is a match in both tables.

• Left join: Returns all rows from the left table and the matched rows from the right table.

• Right join: Returns all rows from the right table and the matched rows from the left table.

• Full outer join: Returns rows when there is a match in either table.
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Q2. Tell about the dax function
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DAX (Data Analysis Expressions) is a collection of functions, operators, and constants that can be used in Power BI, Excel, and other data analysis tools.
• DAX functions are used to create calculated columns, measures, and calculated tables in Power BI and Excel.

• DAX functions include mathematical, logical, statistical, and text functions.

• Examples of DAX functions are SUM, AVERAGE, IF, RELATED, CALCULATE, etc.
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Q1. Questions regarding EDA
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Q2. Questions regarding SQL
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Q3. Questions regarding Power Bi
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Q1. About case studies regarding financial data
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