The following description of the characteristics of cross-domain VN-Optionc is correct?

• A.VPMV4 routes are not saved on the ASBR, and VPNv routes are not advertised to each other.
• B.Cross-domain VN-Optionc, which is not suitable for use when spanning multiple AS.
• C.A maximum of two layers of tags need to be used in the message forwarding process.
• D.VPN routes are exchanged directly between the ingress PE and egress PE and do not require an intermediate device to secure a circular VPN route.

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CORRECT TEXT
As shown in the figure,

All interfaces of the router have OSPF turned on, and the COST value of the link is identified in the figure. R2's loop backO interface advertises a cost in region l, then R1 reaches 10022/32. The value is

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What is the relationship between CIR, BC, and TC?

• A.CIR=TC/BC
• B.CIR=BE/TC
• C.TC=BC/CIR
• D.TC=CIR/BC

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In an HW MPLS network, what parameters are used to define a forwarding equivalent class??

• A.IP prefix
• B.BGP MED?
• C.RSVP requests resource reservation
• D.from CE Layer 2 links

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CORRECT TEXT
What categories can ACLs be divided into?

• A.Advanced ACLs
• B.Two-layer ACL
• C.User-defined ACLs
• D.Basic ACL

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