JN0-120 試験問題を無料オンラインアクセス

Which configuration command creates a virtual router called isp-1?

• A.virtual-router VR isp-1
• B.virtual-router VR ISP-1
• C.virtual-router ISP-1
• D.virtual-router isp-1

A Bridged 1483 service offering is grouping DSL users into a large subnet. What are three characteristics of this configuration? (Choose three.)

• A.A group of PVCs is a subnet.
• B.It provides an IP unnumbered address to ERX.
• C.It burns IP addresses.
• D.It conserves IP addresses.
• E.It provides a numbered IP address to the ERX.

Which protocol is used between the RAS and the authentication server in a narrowband network environment?

• A.RADIUS
• B.MS CHAP
• C.PPP PAP
• D.PPP CHAP

A service provider is assigning a /30 subnet to each ATM PVC in a Routed 1483 environment. What is a consequence of this configuration?

• A.It burns up IP addresses.
• B.It conserves IP addresses.
• C.The group of PVCs is treated as a large LAN.
• D.It results in a smaller routing table.

How does the ERX Edge Router interact with an external DHCP server in a Bridged 1483 network?

• A.It passes DHCP traffic to and from the server and inserts host routes into its routing table.
• B.It maintains DHCP leases on behalf of subscribers.
• C.It initiates DHCP requests on behalf of subscribers.
• D.It passes DHCP traffic to and from the server; you must configure static host routes.