A.Some query or reply packets are lost between the routers
B.The neighboring router starts receiving route updates from this router
C.A failure causes traffic on a link between two neighboring routers to flow in only one direction（unidirectional link）
D.The neighboring router stops receiving ACK packets from this router
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Refer to the exhibit. EIGRP has been configured on routers R1 and R2. However， R1 does notshow R2 as a neighbor and does not accept routing updates from R2. What could be the cause ofthe problem？（）
A.The no auto-summary command has not been issued under the EIGRP process on bothrouters
B.Interface E0 on router R1 has not been configured with a secondary IP address of 10.1.2.1/24
C.EIGRP cannot exchange routing updates with a neighbor’s router interface that is configuredwith two IP addresses
D.EIGRP cannot form neighbor relationship and exchange routing updates with a secondaryaddress
Based on the above configuration, which of the following BGP statements would inject the 10.10.0.0/16 prefix into the BGP routing table（）
A.network 10.0.0.0
B.network 10.10.0.0 mask 255.255.0.0
C.network 10.10.10.1 mask 255.255.255.255
D.network 10.10.10.0 mask 255.255.255.0
E.network 10.0.0.0 mask 255.255.0.0
Study the exhibit below carefully：
If the configuration shown below is added to Router1， which three route entries will EIGRPadvertise to neighboring routers？（）
router eigrp 10
network 10.0.0.0
eigrp stub
A.192.168.20.0/24
B.10.1.2.0/24
C.10.1.1.0/24
D.10.1.3.0/24
E.10.0.0.0/8
A.The IBGP routers must always be fully meshed.
B.The IBGP routers can be in a different AS.
C.The IBGP routers must be directly connected.
D.TThe IBGP routers do not need to be directly connected.
E.None of the other alternatives apply are true
A network administrator is troubleshooting an EIGRP connection between RouterA， IP address10.1.2.1， and RouterB， IP address 10.1.2.2. Given the debug output on RouterA， which twostatements are true？（）
A.RouterA received a hello packet with mismatched metric-calculation mechanisms
B.RouterA received a hello packet with mismatched authentication parameters
C.RouterA will form an adjacency with RouterB
D.RouterA received a hello packet with mismatched autonomous system numbers
E.RouterA received a hello packet with mismatched hello timers
F.RouterA will not form an adjacency with RouterB
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Network Topology Exhibit：Configuration Exhibit：NET（config）# access-list 112 deny icmp any any echo logNET（config）# access-list 112 deny imp any any redirect logNET（config）# access-list 112 deny icmp any any mask-request logNET（config）# access-list 112 permit icmp any 10.1.1.0 0.0.0.255NET（config）# interface Fa0/1NET（config-if）# ip access-group 112 inYou work as a network administrator at networkTut.com， study the exhibit carefully. Theconfiguration has been applied to router NET to mitigate the threat of certain types of ICMPbasedattacks while allowing some ICMP traffic to the corporate LAN to work. However， the configurationis incorrect. On the basis of the information in the exhibit， which configuration option wouldcorrectly configure router NET？（）