The Basic Planning & Scheduling Knowledge domain (approx. 56 questions) covers foundational concepts such as the importance of planning, Work Breakdown Structure (WBS), Critical Path Method (CPM), activity relationships, schedule logic and constraints, AON vs. AOA diagrams, and forward/backward pass calculations. It also includes schedule levels, steps in schedule development, resource modeling, use of calendars, schedule updating, handling delays and changes, compression techniques, recovery planning, and documenting planning deliverables throughout the project lifecycle.