Refer to the exhibit.
The spokes of the DMVPN with the given configuration are having QoS issues.
Which two actions can you take to resolve the problem? (Choose two.)
A.
Configure qos pre-classify on the tunnel interface.
B.
Configure an NHRP group on the tunnel interface and associate it to a QoS policy.
C.
Modify the configuration of the IPsec policy to accept QoS policies.
D.
Manually configure a QoS policy on the serial interface.
E.
Configure the bandwidth statement on the tunnel interface.
F.
Configure the bandwidth statement on the serial interface.
It is possible to classify based on information that is encrypted, which is needed in this example.
You can use an access-list, configured to match the private subnet behind the remote spoke. The
qos pre-classify command is used on the tunnel interface, and is required because the traffic is
classified by a parameter that is encrypted as the traffic leaves the physical outbound interface. L4
information from the IP data packet can also classify traffic destined to the same private subnet.
The “nhrp map group group-name service-policy output parent-policy-name “ command adds
the NHRP group to the QoS policy map on the hub.