Why do blind spots occur in a virtualized environment, where network-based security controls may not be able to monitor certain types of traffic?

Network stack misalignment is not a recognized or documented cause of security monitoring blind spots in virtualized environments.

Cloud environments do operate within networked infrastructure; this statement is factually incorrect and irrelevant to the concept of virtualization blind spots.

Traffic between virtual machines is not inherently undetectable; the specific issue is that it bypasses physical network security controls when it stays within the same host, not that it is fundamentally invisible.

When virtual machines on the same physical host communicate via a virtual switch or internal virtual network segment, the traffic is processed entirely within the hypervisor and never reaches the physical NIC. Traditional network security controls such as IDS/IPS sensors and hardware firewalls only inspect traffic traversing physical network segments, so intra-host inter-VM communication creates a blind spot that those tools cannot monitor.

Incorrect because option D accurately describes a well-documented security challenge specific to hypervisor-based virtualization.