QUESTION: 145

What are some of the following misrepresentations about URPF, IPSG, and DAI technologies? ( Multiple choice questions).

DAI does not support manual configuration of binding tables.
IPSG checks the source IP address and source MAC address of the IP packet , and DAI only checks the correspondence between the IP and the MAC.
URPF can be used to protect against DDoS spoofed source attacks.
IPSG technology checks IP packets for source IP spoofing attack prevention, while DAI checks ARP packets to filter attack sources.

Answer(s): A,B

If you run PIM-SM in a multicast network, you need to build a multicast forwarding tree between the multicast source and the receiver to enable the receiver to receive the multicast effect, so what are the following options for the correct tree sketch for the build?

What is built between the multicast source and the RP is the SPT tree
RP and the receiver is built between the RPT tree
Built between the RPT tree
RP and the swap is the SPT tree

Answer(s): A,B

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QUESTION: 147

In an MPLS BGPVPN environment, if tags are distributed only through BGP and LDP, the MPLS tags of the message can be up to two layers of tags

True
False

Answer(s): A

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QUESTION: 148

As shown in the following figure, R1 and R2 establish a neighbor relationship with LeveL2, and the key configuration is as follows, so is the following route entry for R2 correct?

0::/64 The router will appear in the IP routing table
2022::/64 Routers appear in the IP routing table
2019::/64 Routers appear in the IP routing table
2021::/64 Routers appear in the IP routing table

Answer(s): A,B,C

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QUESTION: 148

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