QUESTION: 221

As shown in the figure, in the HUB & Spoke networking mode of MPLS BGPVPN, in order to achieve the division can only communicate with the headquarters, the division can not communicate with each other When setting up RT, which of the following scenarios is this?( Radio).

:import Target:12:3EpodTarget:12:3
Headquarters: importTarget:1:1EpodTarget:3:3
Headquarters: Impot Target:2:2; Expor Target:3:3
Headquarters: importTarget:
12:3EpodTarget: 3:12

Answer(s): D

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QUESTION: 222

Unlike STP, RSTP has only one BPDU type, its value is 2, and there is no TCN BPDU.

TRUE
FALSE

Answer(s): A

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QUESTION: 223

The means of the LAND attack is that the attacker sends an SVN packet message with the same source and destination addresses to the target host, the source port and the destination port are the same, and the receiver waits for the final ACK packet to be sent , the connection is always in a semi-connected state, resulting in a full limited TCP reception Waste of resources.