In the OSPF broadcast network, which routers will a Dothter router exchange link state information with? (Multiple Choice)

The administrator has configured the router as shown in the figure, then what IP address can a host connected to the G1/0/0 interface of the router obtain through DHCP?

In the network shown in the figure below, host A logs in to router A through Telnet, and then obtains the configuration file of router B through FTP on the remote interface. How many TCP connections exist on router A at this time?

The network administrator configures the Huawei router RTA as shown in the figure. If a user needs to be authenticated in the authentication domain "huawei", the correct description below is ().
[RTA]aaa
[RTA-aaa]domain Huawei
RTA-aaa-domain-huawei]authentication-s cheme aul
[RTA-aaa-domain-huawei]authentication-scheme au2

In the OSI reference model, what can complete end-to-end error detection and flow control?