单项选择题

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.

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单项选择题

You can successfully ping a Bridged 1483 customer's workstation from the local ERX. However, a remote ERX router in your network cannot ping that same device.
What could be causing this problem?（）

A. incorrect DSL network redistribution
B. incorrect static host route configuration
C. incorrect static customer route configuration
D. incorrect default static route configuration on the end user

单项选择题

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 loopback0
B. interface atm 6/0.33 atm pvc 33 0 33 aal5snap encapsulation bridge1483 ip unnumbered loopback0
C. interface atm 6/0.33 atm pvc 33 0 33 aal5mux encapsulation bridge1483 ip address unnumbered loopback0
D. interface atm 6/0.33 atm pvc 33 0 33 aal5snap encapsulation bridge1483 ip address 0.0.0.0 255.255.255.255

单项选择题

In a Bridged 1483 network, what Layer 2 encapsulations are passed between the DSL bridge and the ERX?（）

A. single ATM header
B. single Ethernet header
C. ATM header followed by a PPP header
D. ATM header followed by an Ethernet header

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?（）

相关考题

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?（）