Paytail Interview Questions and Answers

Sql, power Bi basic and Reporting knowledge

Sql knowledge , use of power bi

Salary discussion round

Q1. How to find duplicate characters from string in java ?
Ans. 
Use a HashMap to track characters and their counts, then iterate through the string to find duplicates.
• Create a HashMap to store characters and their counts.

• Iterate through the string and update the counts in the HashMap.

• Iterate through the HashMap and print characters with count > 1 as duplicates.
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Q2. Write a test cases of login page of facebook ?
Ans. 
Test cases for the login page of Facebook
• Verify valid username and password successfully logs in

• Verify error message is displayed for invalid username or password

• Verify 'Forgot password' link redirects to password reset page

• Verify 'Create New Account' link redirects to sign up page
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Q1. Tell me about yourself.
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Q2. Main key skills.
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Q3. Why are you leaving your current organization.
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Q1. Difference between slicer and filter
Ans. 
Slicers are visual controls used to filter data in a report, while filters are used to restrict data based on specific criteria.
• Slicers are interactive visual controls that allow users to filter data in a report by selecting from a list of values.

• Filters are used to restrict data based on specific criteria, such as date range, category, or value.

• Slicers are typically used for visual filtering in Power BI reports, while...read more
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Q2. Drawback of power bi
Ans. 
One drawback of Power BI is the limited customization options for visualizations.
• Limited customization options for visualizations compared to other BI tools

• Difficulty in creating complex custom visualizations

• Limited support for advanced statistical analysis

• Dependency on Microsoft ecosystem for full functionality
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Q3. Difference between tableau and power bi
Ans. 
Tableau is more user-friendly and better for data visualization, while Power BI is more powerful for data manipulation and integration.
• Tableau is known for its ease of use and intuitive drag-and-drop interface.

• Power BI has more advanced data manipulation capabilities and better integration with Microsoft products.

• Tableau is better for creating visually appealing dashboards and reports, while Power BI is better for comp...read more
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