Online Access Free 642-889 Exam Questions

A service provider is tasked to write up a template for the network operations center to set up a Layer 2 VPN. Which command is the first command to issue on a Cisco IOS XR router?

• A.l2vpn
• B.pseudowire-class class_name
• C.connect name_pw interface_path_id dlci_value l2transport
• D.xconnect peer_ip vc_id encapsulation encapsulation_type

Which Layer 2 encapsulations can AToM solution support with interworking IP feature enable?

• A.multipoint PPP to Frame Relay
• B.PPP to Frame Relay
• C.Ethernet to ATM AAL5
• D.ATM AAL5 to Frame Relay

Which Cisco IOS XR BGP configuration command is required to enable MP-BGP to carry IPv6 VPN routes?

• A.address-family vpnv4 unicast
• B.address-family ipv6 unicast
• C.address-family ipv4 unicast
• D.address-family vpnv6 unicast

Which two MPLS QoS models described by RFC3270 are used for CE-PE QoS implementation? (Choose two.)

• A.best effort
• B.uniform
• C.pipe
• D.differentiated services
• E.integrated services

A network engineer working for a very large financial institution must migrate the legacy Frame Relay and ATM virtual circuits over a MPLS VPN solution. Which option is a benefit in choosing a MPLS Layer 3 VPN versus any other Layer 2 VPN design?

• A.An MPLS Layer 3 VPN design requires less provider edge router configuration than any other Layer 2 VPN implementation.
• B.An MPLS Layer 3 VPN design requires less customer edge router configuration than any other Layer 2 VPN implementation.
• C.An MPLS Layer 3 VPN solution provides the possibility to implement overlapping IP addressing.
• D.An MPLS Layer 3 VPN design offers better scalability for large organizations.