Which two Any Transport over MPLS （AToM） traffic encapsulations require the use of a control word？（）

A.LDP notification
B.L2TPv3 session
C.VPN route target communities
D.Multiprotocol BGP peering of PE routers
E.MPLS forwarding

A.TE tunnels that are configured with the FRR option cannot be used as backup tunnels.
B.TE tunnels that are configured with the FRR option can be used as backup tunnels.
C.The backup tunnel that is used to protect a physical interface must have a valid IP address configured.
D.Interfaces must use MPLS global label allocation.
E.The source IP address of use backup tunnel and the merge point （MP） should not be reachable.

A.CRS-1 SMU can be applied to a different platform， and vice versa
B.SMU is an executable code for running a process or libraries that are shared between the different processes
C.SMUs for each release are individually downloadable from Cisco.com and come in the form of a tar ball
D.SMUs provide software fixes for critical network down and qualification blocking issues Therefore，every software defect has a corresponding SMU
E.SMUs are release-specific. If an issue affects multiple platforms or releases，an SMU is built separately for each release and each platform