A. 79xx IP phones do not automatically mark voice packets with non-zero DSCP values.
B. 79xx IP phones do not mark protocol packets such as DHCP， DNS， or TFTP with non-zero DSCP values.
C. 79xx IP phones do not mark voice packets with optimal DSCP values.
D. 79xx IP phones use a custom protocol to communicate CDP information to the switch.
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A. provide service internetworking
B. support transparency for Layer 2 frames
C. indicate destination as a connection identifier
D. map to the DLCI in service internetworking
A. Neither broadcast nor multicast traffic is ever flooded in VPLS.
B. Multicast traffic is flooded but broadcast traffic is not flooded in VPLS.
C. VPLS emulates an Ethernet switch， with each EMS being analogous to a VLAN.
D. Because U-PE devices act as IEEE 802.1 devices， the VPLS core must use STP.
E. When the provider experiences an outage， IP re-routing restores PW connectivity and MAC re-learning is needed.
A. bandwidth efficiency
B. cell-switching
C. congestion notification
D. heterogeneous network
A. nGenius Real-Time Monitor
B. CiscoView
C. Device Fault Manager
D. Internetwork Performance Monitor
最新試題
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Which two design recommendations are most appropriate when OSPF is the data center core routing protocol？ （）
What is the traditional mode for a firewall？（）
The Cisco NAC Appliance is able to check which three items before allowing network access？（）
Which statement about Fibre Channel communications is correct？（）
What are two characteristics of OER？ （）
What is the recommended radius of a cell for a voice-ready wireless network？（）
Which two statements about FCIP and iSCSI are correct？（）
Which two of these correctly describe Fibre Channel？（）
What amount of cell overlap ensures smooth roaming for wireless endpoints？（）