In addition to stateless address autoconfiguration, IPv6 devices can also obtain information such as addresses, gateways, and DNS through DHCPv6.

• A.True
• B.False

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Router HW is enabled with OSPF and the role of the router HW is ABR, and abr -surmnary is configured. Which classes of LSA will be aggregated? (Multiple Choice)

• A.Type 2 LSA
• B.Type 4 LSA
• C.Type 1 LSA
• D.Type 5 LSA
• E.Type 3 LSA

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Mainstream second-tier technologies include VXLAN, TRILL, NVGRE and MPLS.

• A.True
• B.False

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We can use basic community-filters or advanced community-filters to filter BGP routes.
Which of the following tools make the advanced community-filter more flexible than the basic community- filters?

• A.ACL
• B.AS-path-filter
• C.Regular expression
• D.IP-prefix

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Regarding the characteristics of CE dual-homing, which description is wrong?

• A.The VRFs of two PEs connected to the same CE can belong to different VPNs.
• B.In the CE dual-homing network, loops may occur, and route-tags can be used to solve loop problems.
• C.CE and PE form a CE dual-homed network to ensure high network availability.
• D.The CE is connected to the backbone network through two links. The two links can be used as both load balancing and active/standby links.

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