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Which of the following best defines the concept of the "Internet of Things" (IoT)?

Which schema in data warehousing uses a central fact table connected to dimension tables?

Data warehouse metadata primarily describes:

Which type of slowly changing dimension (SCD) preserves full history by adding a new row for each change and using effective date ranges?

Which of these is NOT an ensemble method?

In a snowflake schema of a data warehouse, which of the following consequences is most likely as a result of normalization of dimension tables?

Which OLAP operation involves focusing on a subset of dimensions (e.g., region=‘Asia’)?

ETL stands for:

Which SQL keyword is used to combine results from two queries and remove duplicates?

Data cleansing is primarily concerned with: