问题:
A . It configures a router to send all packets out interface serial 0/0.
B . It configures a router to block routing updates from being sent out interface serial 0/0.
C . It configures a router as a firewall, blocking all unauthorized packets from exiting serial 0/0.
D . It configures a router to send all packets for unknown destination networks out interface serial 0/0.
E . It configures a router to drop all packets for which the destination network is unknown.
● 参考解析
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