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Fitelo Interview Questions and Answers
Q1. Problem statement - What data would you need to reduce air polutation in NCR?
To reduce air pollution in NCR, data on sources of pollution, weather patterns, and population density is needed.
Sources of pollution such as industries, vehicles, and construction sites
Weather patterns such as wind direction and speed, temperature, and humidity
Population density and distribution to identify areas with high pollution levels
Data on emissions from power plants and factories
Information on the types of vehicles and their emissions
Data on the use of alternative mo...read more
Q5. Difference between dimension and measure.
Dimensions are attributes used to group data while measures are numerical values used to perform calculations.
Dimensions are qualitative data while measures are quantitative data.
Dimensions are used for slicing and dicing data while measures are used for analysis and calculations.
Examples of dimensions include date, location, and product while examples of measures include sales, profit, and quantity.
Dimensions are often used as filters while measures are used in charts and gr...read more
Q6. Difference between drop, delete and truncate.
Drop, delete and truncate are SQL commands used to remove data from a table.
DROP command removes the entire table and its data
DELETE command removes specific rows from the table
TRUNCATE command removes all the data from the table
Q7. Guesstimate on Number of McD orders
The number of McDonald's orders can be estimated based on factors like location, time of day, and day of the week.
Consider the population density of the area where the McDonald's is located
Take into account the time of day - more orders during meal times
Factor in the day of the week - weekends may have higher order volumes
Look at historical data or industry averages for similar locations
Consider any promotions or special events that may impact order volume
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