Which flag bits of the STP protocol are not used by the Flag field in the RSTP configuration BPDU? (Muitiple choice)

• A.TCA
• B.Proposal
• C.TC
• D.Agreement

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The output information of a router is as follows. Which of the following statements are correct? (Multiple Choice)

• A.This router is BDR
• B.The DR priority of this router is 1.
• C.OSPFv3 process number is 1.
• D.The router-ID of the neighboring router is 10.0.1.1.

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As shown in the figure, there is a Web server in the private network that needs to provide HTTP services to public network users. Therefore, the network administrator needs to configure NAT on the gateway router RTA to implement the requirements. Which of the following configuration can meet the requirements?

• A.[RTA-Serial1/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
• B.[RTA-Serial1/0/1]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080
• C.[RTA-Gigabitethernet0/0/1]nat server protocol tcp global 202.10.10.1 www inside 192.168.1.1 8080
• D.[RTA-Gigabitethernet0/0/1]nat server protocol tcp global 192.168.1.1 www inside 202.10.10.1 8080

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Which descriptions are correct about the Ethernet subinterface? (Multiple Choice)

• A.The subinterface cannot be configured with an IP address.
• B.The IP address of the sub-interface cannot belong to the same network segment.
• C.The subinterface ID should be the same as the VLAN ID.
• D.A subinterface can be bound to multiple VLANs

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Which of the following description is correct about the display information?

• A.GigabitEthernet 0/0/0 interface is not configured with an IP address.
• B.GigabitEthernet 0/0/0 interface is connected with a wrong cable.
• C.GigabitEthernet 0/0/0 interface does not enable dynamic routing protocol
• D.GigabitEthernet 0/0/0 interface was manually closed by the administrator.

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