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?（）

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  A .  Power capping helps mainly in reducing data center footprint. B .  Power capping helps reduce data center cooling. C .  A single power cap group policy allows you to set power limits across multiple UCS domains.  D .  You can have multiple power cap groups per UCS domain. E .  Each blade within a UCS 5108 chassis can belong to a separate power cap group.

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• Which statement about CiscoWorks 2000 Inventory Manager is true？（）

  A .  It uses SNMP v1. B .  It scans devices for hardware information. C .  It scans and records the operational status of devices. D .  When the configuration of a device changes， the inventory is automatically updated.

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