Question
Seven-year-old Ishank Singh from Jharkhand swam across
the Palk Strait in what time to set a world record?Solution
Ishank Singh swam about 29 km across the Palk Strait from Talaimannar (Sri Lanka) to Dhanushkodi (Tamil Nadu) in 9 hours 50 minutes.
In a star schema, what is the main advantage of using surrogate keys in fact tables?
Data cleansing is primarily concerned with:
In a data warehouse, which type of table stores quantitative data for analysis?
Which of the following is NOT a common OLAP operation?
Which of these is not a typical data warehouse characteristic?
Which of the following is used to maintain information about the structure of a data warehouse?
What is meant by 'cardinality' in data modeling?
Which of the following is a key process in ETL?
A star schema in a data warehouse consists of:
Which operation in OLAP allows selecting a single dimension from a cube?
