CompTIA A+ Core 1 (220-1201) 220-1201 — Question 228

Users in a 200-person call center report that phone calls experience severe performance degradation on busy days. The technician confirms: • Upload and download speeds are 50Mbps during a speed test. • VoIP call prioritization settings are properly configured for the VLAN that the call center uses. Which of the following is most likely the cause of this issue?