Selected Answer: B Cisco Recommendations: Cisco’s Collaboration System 12.x SRND and QoS Design Guides recommend AF43 as the default marking for interactive video traffic (e.g., Jabber video calls) when using a single video queue. This keeps video traffic prioritized appropriately below voice (EF, DSCP 46) but above other data, and AF43’s higher drop precedence fits the needs of real-time, two-way video communication.