多項選擇題Which three of these Metro Ethernet services map to E-Line services that are defined by the MEF？ （）

A. Ethernet Private Line
B. Ethernet Wire Service
C. Ethernet Relay Service
D. Ethernet Multipoint Service
E. Ethernet Relay Multipoint Service


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1.單項選擇題Which of these is a benefit of using Network Admission Control instead of Cisco Identity Based Networking Services？（）

A. NAC can authenticate using 802.1X and IBNS cannot
B. NAC can ensure only compliant machines connect and IBNS cannot
C. NAC can ensure access to the correct network resources and IBNS cannot
D. NAC can manage user mobility and reduce overhead costs and IBNS cannot

2.單項選擇題In which NAS operating mode are ACL filtering and bandwidth throttling only provided during posture assessment？（）

A. Layer 2
B. Layer 3
C. in-band
D. out-of-band
E. edge
F. central

4.單項選擇題Which of these recommended designs provides the highest availability？（）

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

5.單項選擇題Which of these is a correct description of SSO？（）

A. It will only become active after a software failure.
B. It will only become active after a hardware failure.
C. It requires that Cisco NSF be enabled in order to work successfully.
D. It synchronizes the MAC·， FIB·， and adjacency tables between Active and Standby RouteProcessors.