A. supports multiple protocols
B. works only in a shared or loop environment
C. allows addressing for up to 4 million nodes
D. provides a high speed transport for SCSI payloads
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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.
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
最新試題
One of your customers has deployed a Layer 3 gateway in the untrusted network. Which gateway mode is appropriate for this customer？（）
Which statement about data center access layer design modes is correct？（）
In a VoWLAN deployment， what is the recommended separation between cells with the same channel？（）
During consultation， you find that a customer has only a single asset closet and is looking for asolution that is easy to deploy. Which NAS physical deployment model would you suggest to this customer？（）
Which statement about Fibre Channel communications is correct？（）
How many channels are defined in the IEEE 802.11b DSSS channel set？（）
In which two locations in an enterprise network can an IPS sensor be placed？ （）
What amount of cell overlap ensures smooth roaming for wireless endpoints？（）
Which two design recommendations are most appropriate when OSPF is the data center core routing protocol？ （）
Which path selection protocol is used by Fibre Channel fabrics？（）