Add the interface GE1/0/1 to the trusts security zone on the Huawei firewall. At this time, the GE1/0/1 interface belongs to the () security zone. (All lowercase)
Which of the following OSPF messages carry master-slave relationship information?
Which of the following routing protocols support the release of default routes through command configuration? (Multiple choice)
D. DoS attack means that the attacker controls a large number of zombie hosts and sends a large number of carefully constructed attack messages to the target network, so that the attacked has the effect of refusing to provide services to the requests of normal users.
RSTP redefines port roles. Please match RSTP port roles with their roles.

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