Which port needs to be open in order to analyze flow and monitor CBQoS?

Which port needs to be open in order to analyze flow and monitor CBQoS?
A . Flow (SNMP, 161), CBQoS (TCP, 2055)
B . Flow (SNMP, 161), CBQoS (UDP, 2055)
C . Flow (TCP, 2055), CBQoS (SNMP, 161)
D . Flow (UDP, 2055), CBQoS (SNMP, 161)

View Answer

Answer: D