单项选择题
While troubleshooting a network， you need to verify the liveness of hosts in the subnet 192.168.1.64/26. All of the hosts are able to reply to ping requests. How would you confirm the existing nodes using one single command？（）
A.ping 192.168.1.255
B.ping with sweep option
C.ping 192.168.1.127
D.ping 192.168.1.64
E.ping with broadcast option
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相关考题
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单项选择题
Whichmechanismcanyouusetoachievesub-secondfailoverforlinkfailuredetectionwhenaswitchedEthernetmediaisusedandlossofsignalisnotsupportedbythelinkprovider？（）
A.OSPF standard hellos
B.Cisco Discovery Protocol link detection
C.Bidirectional Forwarding Detection
D.Fast Link Pulse
E.autonegotiation -
单项选择题
Refer to the exhibit. R2 and R3 are routers connected using Ethernet services from a service provider and can receive pings from each other. OSPF is configured as the routing protocol but adjacency is not happening. According to the output of the show commands in the exhibit, what could be the most likely cause of the problem?（）
A.Ethernet interfaces were configured as point-to-point.
B.Process IDs are not matching.
C.Configured bandwidths do not match on both interfaces.
D.Broadcasts and multicast are not being propagated over the Ethernet services.
E.OSPF cost does not match on both interfaces. -
问答题
itisbelongafamilyofiproutingprotocols，eachrouterhaveapartialmapofnetwork，whatistheroutingprotocol？
