In a Bridged 1483 network, an ISP has received complaints from their subscribers of denial of service attacks. The ISP suspects these attacks are coming from other subscribers that share the same IP unnumbered interface on the ERX. What can be done to so

题目

In a Bridged 1483 network, an ISP has received complaints from their subscribers of denial of service attacks. The ISP suspects these attacks are coming from other subscribers that share the same IP unnumbered interface on the ERX. What can be done to solve this problem?（）

A、Enable Proxy ARP.
B、Disable Proxy ARP.
C、Enable Inverse ARP.
D、Disable Inverse ARP.

参考答案和解析

正确答案:B

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第1题

RouterNetworkTutisconfiguredasshownbelow:Giventheaboveconfiguration,whichstatementistrue?()A.ThisdeviceisconfiguredasaPPPoEclientB.ThisdeviceisconfiguredasaPPPoAclientC.ThisdeviceisconfiguredasRFC1483/2684bridgeD.Thisdeviceisconfiguredananaggregationrouter

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第2题

Which two encapsulation methods require that an 827 ADSL router be configured with a PPPusername and CHAP password？（）A、PPPoE with the 827 configured as a bridgeB、PPPoE with the 827 configured as the PPPoE clientC、PPPoAD、RFC 1483 Bridged with the 827 configured as the PPPoE clientE、RFC 1482 Bridged with the 827 configured as a bridge

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第3题

Which two B-RAS service offerings do not require user authentication?（）A、Routed 1483B、Bridged 1483C、PPP over ATMD、PPP over Ethernet

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第4题

In a Bridged 1483 network, which set of commands represent an operationally correct configuration for an ATM subinterface?（）A、interface atm 6/0.33 atm pvc 33 0 33 aal5mux encapsulation bridge1483 ip unnumbered loopback0B、interface atm 6/0.33 atm pvc 33 0 33 aal5snap encapsulation bridge1483 ip unnumbered loopback0C、interface atm 6/0.33 atm pvc 33 0 33 aal5mux encapsulation bridge1483 ip address unnumbered loopback0D、interface atm 6/0.33 atm pvc 33 0 33 aal5snap encapsulation bridge1483 ip address 0.0.0.0 255.255.255.255

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第5题

Which two B-RAS service offerings maintain the analog dial-up model with centralized user authentication，authorization，andaccounting？（）A、Routed1483B、Bridged1483C、PPPoverATMD、PPPoverEthernet

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第6题

A Bridged 1483 network is grouping all DSL users into a single logical subnet. Which configuration command prevents the end users from directly communicating with each other?（）A、no ip arpB、no ip proxy-arpC、restrict ip arpD、restrict ip proxy-arp

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第7题

What is the maximum number of external DHCP servers per virtual router in a Bridged 1483 network？（）A、3B、5C、10D、20

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In a Bridged 1483 network, an I

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