How can IP SLA measurement accuracy be improved and also provide additional statistics?

Currently, a Cisco IOS XR router is configured to send IP SLA probes to a network management station that is acting as the IP SLA target device.

How can IP SLA measurement accuracy be improved and also provide additional statistics?
A . Use ICMP echo probes instead of UDP echo probes.
B . Configure another Cisco router as the target and enable that other Cisco router for IP SLA Responder operations.
C . Increase the rate (frequency) at which a specified IP SLA operation is sent into the network.
D . Use UDP echo probes instead of ICMP echo probes and enable UDP echo service on the target network management station.
E . Enable IP SLA Responder service on the target network management station.

View Answer

Answer: B