JN0-130單項選擇題每日一練(2019.01.21)

Click the Exhibit button.

Referring to the exhibit, which statement contains the correct gateway parameters?（）

Host A opens a Telnet connection to Host B. Host A then opens another Telnet connection to Host B. These connections are the only communication between Host A and Host B. The security policy configuration permits both connections.
How many sessions exist between Host A and Host B?（）

During OSPF adjacency formation, in which state is a router in when an OSPF hello packet has been sent but bi-directional communication has not been achieved?（）