What are the security advantages of virtualization, as described in the NIST Information Security and Privacy Advisory Board (ISPAB) paper "Perspectives on Cloud Computing and Standards"? Each correct answer represents a complete solution. Choose three. 

Answer options:

A. It increases capabilities for fault tolerant computing.
B. It adds a layer of security for defense-in-depth.
C. It decreases exposure of weak software.
D. It decreases configuration effort.

fault tolerant computing using rollback and snapshot features. Answer: D is incorrect. Virtualization increases configuration effort because of complexity of the

The security advantages of virtualization are as follows: It adds a layer of security for defense-in-depth. It provides strong encapsulation of errors. It increases intrusion detection through introspection. It decreases exposure of weak software. It increases the flexibility for discovery. It increases capabilities for virtualization layer and composite system.