In OSPF, if the network type is NBMA or broadcast and there are two or more routers, DR and BDR must be specified.

• A.FALSE
• B.TRUE

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RSTP has been improved on the basis of STP, realizing fast convergence of network topology. However, both RSTP and STP are based on a single spanning tree, and there are some shortcomings, such as? (Multiple choice)

• A.It will shovel the problem of suboptimal path
• B.It will cause some VLAN paths to fail
• C.Unable to achieve load balancing of data traffic in VLAN
• D.After the link is blocked, it will carry part of the traffic, which will not cause bandwidth waste

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If IGP routes want to become BGP routes, they can only pass the network command.

• A.FALSE
• B.TRUE

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In IP multicast, RPF routes can be elected only from among unicast routes and multicast static routes.

• A.TRUE
• B.FALSE

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Which of the following descriptions about the next-hop application of routing in BGP are correct? (Multiple choice)

• A.By default, no next-hop iteration routing policy is configured
• B.By default, when BGP advertises imported IGP routes to IBGP peers, it changes the next hop attribute to its own interface address
• C.The next hop attribute of BGP is different from that of IGP, not necessarily the IP address of the adjacent device
• D.You can use the peer X.X.X.Xnext-hop-local command to modify the next hop address when advertising routes to lBGP peers

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