Regarding the BGP/MPLS IP VPN network architecture, what is the error described below?

• A.Under normal circumstances, CE devices are not aware of the presence of VPN, and CE devices do not need to support MPLS MP-BGP, etc
• B.BGP/MPLSIPVPN network architecture consists of CE (Customer Edge), PE (Provider Edge) and P (Provider), of which PE and P Is a carrier device, CE is BGP/MPLSIPVPN with Household equipment
• C.sites can be accessed each other through vPNs, and a site can only belong to a VPN
• D.P devices only need basic MPLS forwarding capabilities and do not maintain VPN-related information

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If multiple candidate RPs are configured in a multicast group, which of the following parameters does the RP that elect the group from multiple candidate RPs need to be compared?

• A.The IP address of the C-RP interface Number of
• B.C-RP interface
• C.The mask length of the group range for the C-RP service that matches the group address that the user joined
• D.C-RP priority

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The following description of the characteristics of Huawei device Eth-trunk link aggregation is correct?

• A.Link aggregation can only be applied to Layer 2 devices.
• B.Link aggregation enables load balancing based on data TCP or UDP ports
• C.Link aggregation cannot be deployed across devices
• D.Link aggregation can be applied to Both Layer 2 and Layer 3 devices

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

• A.TRUE
• B.FALSE

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As shown in the figure,

in the context of IPv4 and IPv6, the SEL field in the NET address of the ISIS is always valued as 00?

• A.False
• B.True

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