單項選擇題Which tech nology manages multicast traffic at Layer 2 by configuring Layer 2 LAN interfaces dynamically to forward multicast traffic only to those interfaces that want to receive it?()

A. IGMP
B. IGMP snooping
C. PIM - DM
D. DVMRP
E. MOS PF


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1.單項選擇題

Refer to the exhibit. Which command would verify if PBR reacts to packets sourced from 172.16.0.0/16?()

A. show ip route
B. show policy - map
C. show access - lists
D. show route - map

2.多項選擇題Which three statements about OSPF areas are true?()

A. Areas introduce a boundary on the link - state updates.
B. Areas are  logical definitions specific to any given router.
C. All routers within an area have the exact link - state database.
D. The calculation of the Dijkstra algorithm on a router is limited to changes within an area.
E. The area designated router will always  have a priority of 0.