— Exhibit —

[edit interfaces]

user@router# show

…

lo0 {

unit 0 {

f

amilyinet {

filter {

input protect-loopback;

}

address 192.168.100.1/32;

}

}

}

— Exhibit —

Given the configuration shown in the exhibit, what is the function of the protect-loopback filter?

A. to protect the Routing Engine

B. to protect all interfaces on the device

C. to protect the Packet Forwarding Engine

D. to protect the management interface