What is the reason that most anti-virus solutions cannot detect zero-day attacks?

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

What is the reason that most anti-virus solutions cannot detect zero-day attacks?
A . It uses anomaly-based detection.
B . It uses signature-based detection.
C . It uses behavior-based detection.
D . It uses a sandbox to run the file.

Answer: B

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