Data Ingenious Global Interview Questions, Process, and Tips

Data Visualization Using Power BI As Well As Tableau And Analysis

Q1. Predictive, Prescriptive, And Descriptive Analysis
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Q2. Significance Of Exploratory Data Analysis
Ans. 
Exploratory Data Analysis is crucial for understanding the data, identifying patterns, and making informed decisions.
• Helps in understanding the distribution of data

• Identifies outliers and missing values

• Detects patterns and relationships between variables

• Assists in selecting appropriate statistical techniques

• Visualizes data for better insights

• Example: Using histograms to understand the distribution of customer ages in a
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Q3. Some Common Data Visualization Tools That Have Used?
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Some common data visualization tools include Tableau, Power BI, and Google Data Studio.
• Tableau

• Power BI

• Google Data Studio
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Q4. Steps Involved In Any Data Analysis Project
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Steps involved in a data analysis project include defining objectives, collecting data, cleaning and organizing data, analyzing data, and presenting findings.
• Define project objectives and goals

• Collect relevant data sources

• Clean and organize data to ensure accuracy

• Perform data analysis using statistical methods and tools

• Present findings and insights to stakeholders
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Q5. Data Cleaning Methods
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Q1. Regression and retest difference
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Regression testing ensures new code changes do not negatively impact existing functionality, while retesting focuses on verifying specific defects have been fixed.
• Regression testing is performed to ensure that new code changes do not introduce new defects or negatively impact existing functionality.

• Retesting is done to verify that specific defects identified in previous testing cycles have been fixed.

• Regression testing...read more
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Q2. Automation script for browser open
Ans. 
Use Selenium WebDriver to automate opening a browser
• Use Selenium WebDriver to create a script in your preferred programming language

• Instantiate a WebDriver object for the desired browser (e.g. Chrome, Firefox)

• Use the get() method to open a specific URL in the browser

• Close the browser using the close() method when done
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Q3. Boundary value Analysis
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Q4. Agile terms
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Q1. Salary discussion and Negotiation
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According project related questions or tasks

Q1. Explain what is pragma temporary table what is SP cursor find second highest salary
Ans. 
Pragma is used to provide instructions to the compiler, temporary table is a table that exists temporarily, SP is a stored procedure, cursor is used to iterate through a result set, finding second highest salary involves sorting the salaries in descending order and selecting the second row.
• Pragma is used to provide instructions to the compiler

• Temporary table is a table that exists temporarily

• SP stands for stored proced...read more
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Q1. Discussion about salary & previous experience
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