Not sure if your asking what certain application or the definition. But the definition: A security practice that blocks or restricts unauthorized applications from executing in ways that put data at risk.
The blank is supposed to be "distributed" so the sentence goes like this "A distributed database supports data distributed across several different sites"<span />
Answer:
b
Explanation:
Its Media layer. its this one
To check a document:
Open the document you want to inspect for tracked changes and comments.
Click the Microsoft Office Button , point to Prepare, and then click Inspect Document.
In the Document Inspector dialog box, click Inspect.
Review the inspection results. ...
Click Reinspect or Close.
Spreadsheet
Description
A spreadsheet is a computer application for organization, analysis and storage of data in tabular form where Jacob can store the user’s information.