OMD Worldwide Manager Interview Questions and Answers

Q1. Mostly questions were related with opening JD
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Q1. Core profile related questions
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Q1. Discussed about CTC and other verification
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2 LC Medium Questions

Q1. Questions on C# and .Net
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Q1. About datorama explain how it works
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Q2. More about digital marketing
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Q1. Ledger details posting profile
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Q2. Fixed Asset project management and accounting
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Q1. About Battery Technology.
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Q2. About Market Requirement
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Q1. Why switching the Job
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Q2. Salary negotiation on FIXED + Variable
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Q1. Difference between union and union all in SQL?
Ans. 
Union combines and removes duplicates, Union All combines without removing duplicates.
• Union combines result sets and removes duplicates

• Union All combines result sets without removing duplicates

• Union is slower than Union All as it involves removing duplicates

• Example: SELECT column1 FROM table1 UNION SELECT column1 FROM table2;

• Example: SELECT column1 FROM table1 UNION ALL SELECT column1 FROM table2;
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Q2. How to show top 5 in pandas?
Ans. 
To show top 5 in pandas, use the nlargest() function.
• Use the nlargest() function with the 'n' parameter set to 5 to get the top 5 values in a pandas DataFrame.

• For example: df['column_name'].nlargest(5) will return the top 5 values in the specified column.
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Q1. If we have 3 numerical columns, which chart is a better representation these column?
Ans. 
A scatter plot is a better representation for 3 numerical columns.
• Use a scatter plot to show the relationship between the numerical columns.

• Scatter plots are effective for visualizing correlations and patterns in data.

• Each point on the plot represents a data point with values from all 3 columns.
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