单项选择题Which L2TP protocol packet is sent by the LAC to establish the control connection (tunnel)?()

A.Start Tunnel Discovery Request
B.Start Control Connection Request
C.L2TP Control Connection Request
D.L2TP Tunnel Establishment Request


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1.单项选择题What is the functionality of L2TP in a BRAS environment?()

A.It tunnels DHCP requests to the LNS.
B.It provides access for analog modem users.
C.It provides RFC 2547 VPN services to the user.
D.It tunnels a PPP session across an IP backbone.

2.单项选择题Which CLI command displays the active L2TP sessions on an LAC?()

A.show subscriber
B.show l2tp tunnel
C.show l2tp session
D.show tunnel session

3.单项选择题Which sequence of messages demonstrates the communications between the LAC and LNS when theyestablish an L2TP session?()

A.Incoming Call Reply, Incoming Call Request, Incoming Call Connected
B.Incoming Call Reply, Incoming Call Connected, Incoming Call Request
C.Incoming Call Request, Incoming Call Reply, Incoming Call Connected
D.Incoming Call Request, Incoming Call Connected, Incoming Call Reply

4.单项选择题Which statement describes the function of the LNS in a L2TP environment?()

A.It initiates both the PPP session and the tunnel.
B.It initiates the PPP session and terminates the tunnel.
C.It terminates the PPP session and initiates the tunnel.
D.It terminates the PPP session and terminates the tunnel.

5.单项选择题Which command parameter configures a password of connection-to-lac for an L2TP tunnel on an LNS?()

A.l2tp password connection-to-lac
B.local password connection-to-lac
C.tunnel password connection-to-lac
D.server password connection-to-lac

6.单项选择题Which configuration command dynamically detects and configures a PPPoA interface?()

A.auto-configure ip
B.auto-configure ppp
C.auto-configure pppoe
D.auto-configure bridgedethernet

7.单项选择题With the command atm bulk-config test vc-range 1 3 200 400, what is the correct interpretation of the numeric values following the vc-range?()

A.vpi 1 vci 200, vpi 3 vci 400
B.vpi 1 through 3, vci 200 through 400
C.vpi 1 vci 200 through 400, vpi 3 vci 200 through 400
D.vci 1 through 3, vpi 200 through 400

8.单项选择题What does the ip access-routes configuration command accomplish?()

A.It statically places a host route in the routing table.
B.It statically associates an IP address with a customer.
C.It dynamically creates a host route in the routing table.
D.It dynamically assigns an address to the router's interface

9.单项选择题Which profile configurations allows either PAP or CHAP to be used for authentication?()

A.ppp authentication chap pap
B.pppoe authentication chap pap
C.ppp authentication chap ppp authentication pap
D.pppoe authentication chap pppoe authentication pap

10.单项选择题Which set of commands allows PPPoE dynamic interfaces to use a profile called config-info?()

A.profile config-info auto-configure ppp
B.profile config-info auto-configure any
C.profile ppp config-info auto-configure pppoe
D.profile pppoe config-info auto-configure pppoe