Which of the following activities is part of the LLC recommended activities?

Determining total quantities is an essential part of the Life Cycle Cost (LLC) recommended activities. This activity involves calculating the quantities of resources, materials, and components needed throughout the lifecycle of a system. It directly impacts cost estimates, resource planning, and budgeting, making it crucial for effective lifecycle management.

In the context of LLC, understanding total quantities helps in assessing the overall costs associated with development, production, operation, and support phases of a system. This activity also facilitates decision-making related to trade-offs between different alternatives or configurations and ensures that acquisition strategies align with resource availability and project timelines.

On the other hand, developing marketing strategies, training personnel, and conducting user surveys, while important in their own rights, do not specifically relate to the financial and resource quantification focus that characterizes LLC activities. These tasks are more aligned with operational and management planning rather than the core financial analysis central to determining total quantities in LLC.