Can we def‌ine a nested virtual table in data virtualization server with mapping?

In business intelligence architecture, which of the following data stores contains volatile data?

The most successful implementation of data virtualization uses a layered architecture that combines physical and virtual data stores at the appropriate levels to fit different performance requirements for different areas within the company.

Which of the following components of logical data warehouse is used to integrate data virtually within/beyond an enterprise?

Correct statements about distributed processes component of logical data warehouse? 1. It is used to integrate big data sources such as Hadoop with distributed processes performed in the cloud. 2. It provides abstracted and semantic layer overview of enterprise data across virtualized sources. 3. It provides data governance, auditability and lineage required.

ln data virtualization, which of the following statements are incorrect about an application layer?

Which of the following options are correct about data warehouse (DWH)?

What are the benefits of a data virtualization software?

Which of the following are the differences between data warehouse and operational database?

With reference to business intelligence architecture, which of the following data stores is/are used to store detailed data?

In business intelligence, which of the following statements are correct in the case when big data is adopted?