Question
Pipe 'X' takes 50 minutes to fill the tank by itself,
while Pipe 'Y' can fill it in 30 minutes on its own. What is the time required for both pipes to fill the tank when they are operated simultaneously?Solution
ATQ,
Let the capacity of tank be 150 units (LCM of 50 and 30) Efficiency of 'P' = (150/50) = 3 units/minute Efficiency of 'Q' = (150/30) = 5 units/minute So, required time = 150 Ć· (3 + 5) = 18.75 minutes
Which OLAP operation rotates the data axes to provide an alternative presentation?
In OLAP, āSlice and Diceā means:
ETL stands for:
What is the primary function of ETL in a data warehouse environment?
Which of the following best defines the concept of the "Internet of Things" (IoT)?
Which of these is NOT an ensemble method?
Which of the following best describes a fact constellation schema in a data warehouse?
In a data warehouse, which type of table stores quantitative data for analysis?
Which SQL function returns the total number of rows in a table?
Which process loads data from multiple sources into a data warehouse?
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