Option A makes the most sense. The overall health dashboard in DNA Center shows top issues across the whole network, not individual device logs or CPU stats. Official guides and a few practice tests mention this "top 10 global issues" summary feature pretty often. Someone correct me if I missed something!
Pretty sure it's A here. The Overall Health Dashboard focuses on giving a quick summary about top issues affecting the network, which matches what I've seen in similar exam questions. Not seeing anything about detailed per-device logs or CPU usage reports in that dashboard. If someone disagrees let me know!
C tbh. The dashboard does give you overall health metrics, and when I've used it on some demos, it seemed to highlight operational status, especially for wireless devices. But I'm not 100% sure if it's specifically limited to just wireless or if that's a partial view. Maybe someone else saw different behavior depending on the DNA Center version?