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Data Virtualization is also known as data management. This procedure helps applications manipulate and retrieve data without requiring technical details about the data. For example, it does not require the information of where it is physically located, or how it is formatted. IT sectors prefer to use this technique as it helps them gain benefits including zero replication, integration of data from several resources without replication, reducing storage, and bypassing redundant copies.
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With reference to data integration problem, which of the following serve an example of uniform data access that are personalized doorways to intranet or internet. and where every user is provided with information according to their requirement?
Data Warehouses
Portals
Operational data stores
Answer:
Portals
It cannot be used in place of a data warehouse.
it can be used for an organization whose data is stored off-site by a third party cloud service provider.
it can be used as an enhancement to add attributes, which are not supported by data warehouse API.
All the statements given above are correct.
Answer:
it can be used for an organization whose data is stored off-site by a third party cloud service provider.
it can be used as an enhancement to add attributes, which are not supported by data warehouse API.
Note: This question has more than 1 correct answers