22 Questions
What is a major drawback of having independent data marts?
Inconsistent data definitions
What is a key benefit of the data mart bus architecture?
Maintaining data consistency across the enterprise
What is a characteristic of the hub-and-spoke architecture?
Centralized data warehouse
What is a potential issue with the hub-and-spoke architecture?
Lack of holistic enterprise view
What is a key advantage of the hub-and-spoke architecture?
Easy customization of user interfaces
What is a characteristic of independent data marts?
Inconsistent data definitions
What is the primary purpose of ETL software in a data warehouse framework?
To transform and cleanse data from various sources
Which of the following is NOT a source of data for a data warehouse?
Data mart
What is the purpose of metadata in a data warehouse?
To support data summarization and indexing
Which of the following is a benefit of using middleware tools in a data warehouse framework?
Simplified access to the data warehouse for power users
What is the primary function of a data mart?
To provide summarized and detailed information for a specific business need
Which of the following is a characteristic of a data warehouse?
Integrates data from multiple sources
What is the relationship between a data warehouse and a data mart?
A data mart is a subset of a data warehouse
What is the purpose of a staging area in a data warehouse framework?
To transform and cleanse data from various sources
What is the primary advantage of using a dependent data mart?
It provides a consistent data model and quality data
What is the main difference between a dependent data mart and an independent data mart?
The source of the data
What is the primary purpose of an operational data store (ODS)?
To provide a consolidated view of volatile data
What is similar to short-term memory in a data warehousing environment?
An operational data store (ODS)
What is the primary characteristic of an oper mart?
It is used for multidimensional analysis of operational data
What is the relationship between an operational data store (ODS) and an oper mart?
An ODS is the source of data for an oper mart
What is the primary difference between the data stored in a data warehouse and an operational data store (ODS)?
The frequency of data updates
What is the purpose of the ETL (Extract, Transform, and Load) process in an operational data store (ODS)?
To consolidate data from multiple source systems
This quiz covers the process of gathering data from various sources, transforming and loading it into a data warehouse, and preparing it for analysis. Learn about the different stages of data warehousing, including data extraction, transformation, and loading.
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