The network administrator defines a traffic policing strategy as follows:

The router port that uses this policy has been idle for about 10 seconds. At this time, there are huge bursts of c1 type traffic coming in an instant, so how many bytes will be colored in the green packet?

• A.32K bytes
• B.80128 bytes
• C.256K bytes
• D.48128 bytes

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A company has built an OSPF network as shown in the following figure. The links form an OSPF neighbor relationship. All devices have announced their own loopback address. On one day, the S1-R2 and S2-R1 links are faulty. Which of the following description is correct? (Area 0 is split)

• A.R5 can learn the loopback route of R2 normally.
• B.R3 can learn the loopback route of R2 normally.
• C.R1 can learn the loopback route of R2 normally.
• D.R3 cannot learn the loopback route of R2.

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The following is the description of the characteristics of the cross domain vpn-Option C, which is correct? (Multiple Choice)

• A.Cross-domain VPN-Option-c mode is not suitable for use when spanning multiple AS.
• B.VPNV4 routes are not saved on the ASBR, and VPNv4 routes are not advertised to each other.
• C.The VPN route is directly exchanged between the ingress PE and the egress PE, and no intermediate device is required to save and advertise the VPN route.
• D.Up to two layers of labels need to be used in the packet forwarding process.

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Which of the following statements about the VXLAN gateway are wrong?

• A.The third layer gateway of VXLAN can be divided into centralized gateway and distributed gateway.
• B.VXLAN Layer 2 gateway is bound to the VPN instance.
• C.The second layer gateway of VXLAN allows tenant access XLAN, and used to communicate between the subnets in the same VLAN.
• D.The third layer gateway of VXLAN allows inter-subnet VXLAN communications and external network access.

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The network administrator is ready to use the 6to4 automatic tunnel to carry IPv6 data on the IPv4 network. The IPv4 address of the router interface is 138.14.85.210, so the corresponding tunnel address is 2001:8a0e:55d2:1:230:65ff: fe2c:9a6.

• A.True
• B.False

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