A.ldp explicit-null
B.mpls forwarding explicit-null
C.mpls ldp advertise-labels explicit null
D.mpls ldp explicit-null

A. O IA
B. O E1
C. O E2
D. O

A.only the local OSPF routes
B.only the OSPF routes installed in the routing table
C.only the remotely learned OSPF routes
D.all the OSPF routes from the OSPF database that are eligible to be put in the routing table

A.VRF definition for IPv6
B.MP BGP for IPv6
C.LDP
D.VRF-enabled routing protocol
E.VRF-enabled interface

A.ipv6 router rip ccie distribute-list..
B.ipv6 router rip ccie offset-list..
C.interface e0/0 ipv6 rip ccie distribute-list..
D.interface e0/0 ipv6 rip ccie advertise..

A.Out-of-profile packets are queued.
B.It causes TCP retransmits.
C.Marking and remarking are not supported.
D.It does not respond to BECN and foresight messages.
E.It uses a single- and two-bucket mechanism for metering.

A. Ethernet interfaces were configured as point-to-point.
B. Process IDs are not matching.
C. Configured bandwidths do not match on both interfaces.
D. Broadcasts and multicast are not being propagated over the Ethernet services.
E. OSPF cost does not match on both interfaces.

A.instances can control a selection of VLANs
B.load balancing
C.fast transition to forwarding state
D.backbone，uplink，and portfast （or equivalent）
E.root，loop，and BPDU guard （or equivalent）

A.the table of 4096 elements that map the respective VLAN to STP instance number
B.VTP version
C.configuration revision number
D.native VLAN ID

A.PIM sparse mode is being used.
B.PIM dense mode is being used.
C.The BGP multicast address family has not been configured.
D.IGMP version 3 is being used.
E.IP PIM neighbor filters have not been applied.

A.ip sla 1 icmp-echo 1.1.1.1 tos 160
B.ip sla 1 icmp-echo 1.1.1.1 tos 20
C.ip sla 1 icmp-echo 1.1.1.1 precedence 5
D.ip sla 1 icmp-echo 1.1.1.1 dscp 20