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