A designer is working with a large bank to redesign their network. The designer wants to
minimize complaints regarding slow application response times across the WAN. It is suspected
that currently traffic is not being classified and marked correctly somewhere in the network.
Which tool should the designer recommend to validate quality of service mappings and use?

A.
SNMP

B.
IPFIX

C.
IP SLA

D.
protocol analyzer

E.
NBAR