Which activity can be used to ensure data confidentiality?

Posted by: Pdfprep Category: 210-250 Tags: , ,

Which activity can be used to ensure data confidentiality?
A . provide authenticity of the data by digitally signing it
B . increase the data privacy by encrypting it
C . use a two-factor authentication to authenticate the source of the data
D . back up the data to an offsite location

Answer: B