Select the correct answer. Which action does metadata perform? A. extracting data from data warehouse B. mapping data from the database to data warehouse C. transforming data in the staging area D. loading data from the staging area

D. loading data from the staging area

Explanation:

Metadata is definitely what loads the data from the staging area. Hence, the answer. It is the data about Data. Its defines the data, and explains what is the content inside that. Like on web pages we use the keywords, and the meta description inside the Meta tag. And that explains the page. The web page is the staging area, and the search engine does the search, and load to the web data which is the data warehouse, and now it has transformed into the data lake. Thus the Metadata is the Meta tag, and this loads the data from the staging area, which is the web page to the data warehouse (now data lake), which is the web data, and search engine finds the data from the web of websites.