An interface can only belong to single Flex Links.
An interface can belong to multiple Flex Links.
Flex Links operate only over single pairs of links.
Flex Links automatically disable STP so no BPDUs are propagated.
第1题：
A. IGMP
B. IGMP snooping
C. PIM - DM
D. DVMRP
E. MOS PF
第2题：
A. Layer 1intercontroller roaming
B. Layer 2intercontroller roaming
C. Layer 3intercontroller roaming
D. Layer 4intercontroller roaming
第3题：
A.Layer 1 on the interface is up but Layer 2 is down.
B.Layer 2 on the interface is up but Layer 3 has not been configured.
C.The interface is administratively up but the link status is down.
D.The interface is up but has been administratively turned off.
第4题：
Which three Layer 2 access designs have all of their uplinks in an active state?（）
第5题：
A. Flex Links
B. loop-free U
C. looped square
D. looped triangle
第6题：
A. map the Layer 2 VLAN number to the Layer 3 subnet
B. control route propagation to edge switches using distribute lists
C. use a Layer 2 distribution interconnection link with HSRP or GLBP
D. use a Layer 3 distribution interconnection link with HSRP or GLBP
E. use equal-cost Layer 3 load balancing on all links to limit the scope of queries in EIGRP
第7题：
A. Flex Links
B. loop-free U
C. looped square
D. looped triangle
E. loop-free inverted U
第8题：
Routers perform the decision process that selects what path a packet takes. These （ ） layer devices participate it the collection and distribution of network-layer information, and perform Layer 3 switching based on the contents of the network layer （ ） of each packet. You can connect the routers directly by point-to-point （ ） or local-area networks, or you can connect them by LAN or WAN switches. These Layer 2 switches unfortunately do not have the capability to hold Layer 3 （ ） information or to select the path taken by a packet through analysis of its Layer 3 destination address. Thus, Layer 2 switches be involved in the Layer 3 packet （ ） decision process.
A.application B. network C.physical D.link A.header B.connection C.protocol D.data A.medium B.links C.switches D.carriers A.network B.links C.protocol D.routing A.switching B.processing C.forwarding D.connecting
第9题：
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?（）
第10题：
Which of these recommended designs provides the highest availability?（）