A large retail bank is designing a unified communications solution to be deployed to its 200 branches. Its current network traffic consists of a web-based portal, Internet browsing, and general file server access. Each branch has between 15 and 20 users. The current WAN is based on Layer 3 MPLS and the customer manages its own CE routers. The WAN circuit interface to the service provider is Gigabit Ethernet, although the MPLS service that is contracted from the service provider is 10 Mb/s. The design is to use a DSCP-based four-class QoS policy to manage traffic demands. From the options below, which two QoS design options that should be implemented on the customer side will meet the requirement? (Choose two.)
A. Shape traffic to 10 Mb/s on the CE router.
B. Police traffic to drop outbound traffic that exceeds 10 Mb/s.
C. Classify DSCP value EF for call signaling and voice packets, and place traffic in a strict priority queue.
D. Priority queue traffic to demand up to 80% of total bandwidth.
E. Enable DSCP-based WRED on all AF classes.
