Room for improvement:
The first paragraph in the slide notes state:
Security policies can be defined at both the standard switch level and the port group level.Correct:
The statement above is incomplete: the security policy can also be set at the single VMkernel port level. This is confirmed by what just explained on the previous slide notes page (number 05-19 "Network Policies" on page 201) in the students' manual, when providing the overview description of the network policies:
These policies are defined for the entire standard switch and can also be defined for a VMkernel port or a virtual machine port group.