Which command displays the CHAP authentication process as it occurs between two routers?（）

What is the purpose of the cisco Vlan Trunking protocol?（）

An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）

How are VTP advertisements delivered to switches across the network?（）

The network administrator cannot to switch 1 over a telnet session,although the hosts attached to switch 1 can ping the interface Fa0/0 of the router.Given the information in the graphic and assuming that the router and switch2 are configured properly,which of the following commands should be issued on switch 1 to correct this problem?（）

Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?（）

At which layer of the OSI model dose PPP perform?（）

Which statement describes the rule of split horizon?（）

What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）

Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?（）