Correct Answer : All of the above
Explanation :
The requisites provided by ETL tools are :
* Using an ETL tool is as easy as sorting, filtering, reformatting, merging, and joining data.
* A few ETL tools support BI tools and functionality such as transformation scheduling, monitoring, and version control.
* Multiple data structures and different platforms, such as mainframes, servers, and databases, can be collected, read, and migrated using ETL tools.