Refer to the exhibit. BGP has been configured on the routers in the network. However， the IBGPpeers in autonomous system 65200 have not converged. In addition， this console message wasgenerated on router R2：
*Mar 1 03：09：07.729： %TCP-6-BADAUTH No MD5 digest from 10.10.23.2（179） to10.10.23.3（11002）
On the basis of the information that is provided， what is the cause of the problem？（）
A.OSPF must be configured with the same MD5 authentication
B.BGP authentication can be used on iBGP peers when the connection is configured between theloopback interfaces
C.BGP authentication can be used on eBGP peers only
D.The password that is used for BGP authentication on both BGP peers in autonomous system65200 must be the same
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Refer to the exhibit diagram and configuration. RTB is summarizing its networks from AS 64100with the aggregate-address command. However， the show ip route command on RTA reveals theRTB individual networks as well as its summary route. Which option would ensure that only thesummary route would appear in the routing table of RTA？（）
A.Add a static route with a prefix of 192.168.24.0 255.255.252.0 pointing to the null0 interface
B.Create a route map permitting only the summary address
C.Delete the four network statements and leave only the aggregate-address statement in theBGP configuration
D.Add the keyword summary-only to the aggregate-address command
A.The network was originated via redistribution of an interior gateway protocol into BGP
B.The network was defined by a static route
C.The network was learned via IBGP
D.The network was learned via EBGP
E.The network was originated via a network or aggregate command
A.Route reflectors
B.Route maps
C.Route redistribution
D.Peer groups
E.Aggregate addresses
A.Configure weight
B.Enable route reflector
C.Create a distribute list
D.Enable the Longer Autonomous System path option
E.All of the above
A.Router （config-router）#network 154.2.1.0
B.outer （config-router）#network 164.2.1.0
C.Router （config-router）#network-advertise 154.2.1.0
D.Router （config-router）#network 154.2.1.0 mask 255.255.255.0
E.None of the other alternatives apply
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