Refer to the exhibit.

You are operating a converged network that is used to provide multiple types of services including
VoIP. You have received multiple complaints that the call quality for some of the calls is poor. You
determine that all calls with a reported problem transit via one common link in the core. This link
interconnects two CRS-1 core routers. The exhibit shows the QoS configuration of the port on both
CRS-1 routers.

What are the two most likely reasons for the problem? (Choose two.)

A.
The bandwidth that is allocated in the QoS configuration is more than 100 percent and is
probably causing the poor VoIP service.

B.
The VoIP traffic on the core link exceeds 1 Gb/s and is dropped by the policer.

C.
The core link is congested due to VoD and IPTV traffic and is causing starvation to VoIP traffic.

D.
The VoIP traffic on this core link is MPLS-labeled and is not subject to QoS.

E.
A DoS attack on the CRS has caused high CPU utilization on the line card that hosts the 10
Gigabit Ethernet-port.