Which of the following is NOT included in Phase II knowledge of apparatus for Probationary Firefighters?

Phase II knowledge for probationary firefighters encompasses various operational skills related to firefighting apparatus, which are essential for on-the-job effectiveness. MDC commands, or Mobile Data Computer commands, are specific to managing computer systems in fire apparatus and ensuring effective communication. While understanding MDC commands is crucial for navigating data and maintaining communication while on the field, it does not directly pertain to the physical or mechanical operation of firefighting equipment.

In contrast, ventilation techniques, running generators, and performing ladder raises and setting up aerial ladders are all practical skills critical for firefighting tasks. These involve the physical operation and management of equipment on the fire scene, which are pivotal for a probationary firefighter's functionality in their role. Thus, MDC commands are not categorized under the Phase II knowledge of apparatus, making it the exception among the options presented.