Dentsu World Services Senior Executive - Finance Interview Questions and Answers

Basic aptitude questions, statics, probability etc

Q1. Where do you live in the USA
Ans. 
I live in New York City, the bustling metropolis known for its iconic landmarks and diverse culture.
• I reside in the heart of Manhattan, surrounded by towering skyscrapers.

• New York City is home to famous attractions like Times Square, Central Park, and the Statue of Liberty.

• The city offers a vibrant arts and entertainment scene, with Broadway shows and world-class museums.

• I enjoy exploring the diverse neighborhoods and ...read more
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Q2. Where do you see yourself in 5 years
Ans. 
In 5 years, I see myself as a senior data analyst leading a team, utilizing advanced analytics to drive strategic decision-making.
• Leading a team of data analysts

• Utilizing advanced analytics techniques

• Driving strategic decision-making

• Continuously learning and staying updated with the latest trends in data analysis
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Q1. Difference between Primary Key and Unique Key ?
Ans. 
Primary key uniquely identifies each record in a table, while Unique key allows only unique values but can have null values.
• Primary key enforces uniqueness and not null constraint on a column

• Primary key can consist of multiple columns

• Unique key allows only unique values but can have null values

• Unique key can be applied to multiple columns as well
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Duration was 1 hour, Topics covered were DSA, Concurrency in golang, Databse questions

Q1. About the project. and asked what i did in project. how to create schema in pyspark. what is ADE. what are the difficulties i faced in project. what is spark submit command how we write sparksubmit command...read more
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Q2. No of occurrences of letter in a string.
Ans. 
Count occurrences of a letter in a string.
• Iterate through each character in the string and count occurrences of the specified letter.

• Use a hashmap to store the count of each letter.

• Handle both uppercase and lowercase letters to ensure accurate counting.
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Q1. Form based JS questions. String questions in javascript
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Q2. React interview questions with some state management follow up questions.
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