20+ Business Intelligence Analyst Interview Questions and Answers

Tableau desktop, Tableau prep and Tableau Server are data visualization and analysis tools.

• Tableau desktop is used for creating interactive visualizations and dashboards.

• Tableau prep is used for cleaning and preparing data for analysis.

• Tableau Server is used for sharing and collaborating on visualizations and dashboards.

• Tableau also offers mobile apps for accessing and interacting with visualizations on-the-go.

• Tableau supports a wide range of data sources and has powerful dat...read more

I gather and analyze data by identifying business objectives, collecting relevant data, cleaning and organizing it, and using statistical methods to draw insights.

• Identify business objectives and define key performance indicators (KPIs)

• Collect relevant data from various sources

• Clean and organize data to ensure accuracy and consistency

• Use statistical methods such as regression analysis and data visualization to draw insights

• Communicate findings and recommendations to stakehold...read more

Profit is 10

• Profit = Selling Price - Cost Price

• Profit = 30 - 20 = 10

To penetrate the market and attract drivers from Ola, a business model focused on competitive pricing, driver incentives, and superior customer experience can be implemented.

• Offer competitive pricing to attract drivers from Ola

• Provide attractive incentives and benefits for drivers to switch

• Focus on delivering a superior customer experience

• Leverage technology and data analytics to optimize operations and improve efficiency

• Invest in marketing and advertising to create awareness...read more

I would apologize for the inconvenience, investigate the issue, and communicate a plan to prevent future delays.

• Apologize for the late delivery and acknowledge the inconvenience caused to the client.

• Investigate the reasons behind the late delivery, including any internal or external factors that contributed to the delay.

• Communicate a plan to prevent future delays, such as improving communication with the client, optimizing processes, or allocating more resources.

• Offer compens...read more

Business intelligence is the process of collecting, analyzing, and presenting data to help organizations make informed decisions.

• Involves collecting data from various sources

• Analyzing data to identify trends and patterns

• Presenting insights to help with decision-making

• Uses tools like data visualization and reporting software

• Helps organizations improve efficiency and effectiveness

To connect SQL & PowerBI backend database, use the 'Get Data' option in PowerBI and select SQL Server as the data source.

• Open PowerBI and select 'Get Data' option

• Select 'SQL Server' as the data source

• Enter the server name and database name

• Choose the authentication method

• Select the tables/views to import

• Transform the data if required

• Create visualizations using the imported data

As a Business Intelligence Analyst, my day activities involve data analysis, report generation, and presenting insights to stakeholders. During difficult times, I prioritize communication and collaboration to find solutions.

• My day activities include analyzing data to identify trends and patterns, generating reports to communicate insights to stakeholders, and presenting findings to inform decision-making.

• During difficult times, I prioritize communication and collaboration to ...read more

DTWSTR stands for Data Type Wide String and is a data type used in programming to store wide characters.

• DTWSTR is used to store Unicode characters, which require more memory than regular characters.

• DTWSTR is commonly used in programming languages like C++ and Java for internationalization and localization purposes.

• An example of DTWSTR usage is storing names or text in different languages that require special characters.

Use the ORDER BY and LIMIT clauses to get the 2nd highest value in SQL.

• Use ORDER BY clause to sort the values in descending order

• Use LIMIT 1,1 to get the second row after skipping the first row

I will handle customers by actively listening to their needs, providing prompt and accurate responses, and ensuring their satisfaction.

• Actively listen to customers to understand their needs and concerns

• Provide prompt and accurate responses to customer inquiries

• Offer solutions and alternatives to address customer issues

• Ensure customer satisfaction by following up and resolving any outstanding concerns

• Maintain a positive and professional attitude when interacting with customers

Developed a predictive analytics model for customer churn using machine learning algorithms.

• Used Python programming language for data preprocessing and model building

• Implemented algorithms such as Random Forest and Logistic Regression for predictive analysis

• Performed feature engineering to improve model accuracy

• Conducted A/B testing to validate model performance

Code to find multiples of 3 & 5

• Iterate through numbers and check if divisible by 3 or 5

• Use modulo operator (%) to check for divisibility

• Store multiples in an array

Average calculates the arithmetic mean of a set of numbers, while AVERAGEX calculates the average of an expression evaluated for each row in a table.

• Average is used for calculating the average of a set of numbers.

• AVERAGEX is used in DAX formulas in Power BI to calculate the average of an expression for each row in a table.

• For example, AVERAGEX can be used to calculate the average sales amount per customer in a sales table.

Clustered indexes physically order the data in the table, while non-clustered indexes do not.

• Clustered indexes determine the physical order of data in the table, while non-clustered indexes do not.

• Clustered indexes are faster for retrieval of large ranges of data, while non-clustered indexes are better for individual row lookups.

• Tables can only have one clustered index, but multiple non-clustered indexes can be created.

Corrupt files can be handled by identifying the issue, attempting to repair the file, and restoring from backups if necessary.

• Identify the type of corruption in the file (e.g. file format corruption, data corruption)

• Attempt to repair the file using built-in tools or third-party software

• If repair is not possible, restore the file from backups

• Implement preventive measures such as regular backups and file integrity checks

IMEX property is a property that is used to import and export data in SQL Server Integration Services (SSIS).

• IMEX property stands for 'InterMixed' property

• It is used in connection strings to specify how to treat data types when importing or exporting data

• It is commonly used in SSIS packages to handle mixed data types in Excel files

To find the join result of two tables, you can use SQL JOIN statement.

• Use SQL JOIN statement to combine rows from two or more tables based on a related column between them.

• Types of joins include INNER JOIN, LEFT JOIN, RIGHT JOIN, and FULL JOIN.

• Example: SELECT * FROM table1 INNER JOIN table2 ON table1.column = table2.column;

Multica is a term that is likely a typo or incomplete question, as it does not have a clear meaning in the context of business intelligence.

• It is possible that the interviewer meant to ask about 'multicasting', which is a networking technology that allows data to be sent to multiple recipients simultaneously.

• Alternatively, the question could have been about 'multicollinearity', which is a statistical concept that refers to the presence of high correlations among independent v...read more

SQL query using joins to combine data from multiple tables

• Use INNER JOIN to combine rows from two or more tables based on a related column between them

• Specify the columns to select from each table in the SELECT statement

• Use ON clause to specify the join condition

Types of joins in SQL include inner join, outer join, left join, right join, and full join.

• Inner join: Returns rows when there is a match in both tables

• Outer join: Returns all rows when there is a match in one of the 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 join: Returns rows when there is a match in one of the tables