1.CoS is applied for Layer 2 markings in an Ethernet environment. Which protocol must be configured on the Layer 2 switch port for CoS to work? A. MPLS B. IEEE 802.1W C. IEEE 802.1Q D. IEEE 802.1S Answer: C
2.Which three of these Metro service types map to E-Line (versus E-LAN) services that are defined by the Metro Ethernet Forum (MEF)? (Choose three.) A. Ethernet Private Line B. Ethernet Wire Service C. Ethernet Relay Service D. Ethernet Multipoint Service E. Ethernet Relay Multipoint Service Answer: A,B,C
3.Which security feature can help prevent spoofed packets on the network? A. uRPF B. ACLs C. DAI D. DHCP spoofing Answer: A
4.Which two options improve BGP scalability in a large autonomous system? (Choose two.) A. route reflectors B. route redistribution C. confederations D. communities Answer: A,C