It’s a one-on-one (or small-group) session with your company’s designated security coordinator. The coordinator walks the actual written plan with you, section by section, identifies your specific responsibilities under the plan, and confirms you understand them. The session typically takes 30 to 60 minutes. At the end, you sign an acknowledgment in the LMS and the coordinator countersigns the certificate. The walkthrough is required because two of the three (a)(5) elements are inherently company-specific — a generic video cannot satisfy them.