What is the purpose of pressing the Ctrl+Break keys during the router password recover procedure?（）

Which Frame Relay feature is responsible for transmitting keepalives to ensure that the PVC does not shut down because of inactivity?（）

Which command is required for connectivity in a Frame Relay network if Inverse ARP is not operational? （）

Which of the following if addresses can be assigned to host devices?（）

All WAN links is side the TestKing.com network use PPP with for authentication security. Which command will display the CHAP authentication process as it occurs between two routers in the network?（）

Which of the following contribute to congestion on an Ethernet network?（）

Five minutes after issuing the show running-config command, a technician enters the command again and notices that several access list statements have been altered. Because of this, the technician believes that the router is being configured by an unknown person through Telnet. Before changing the router passwords, the technician would like to discover if anyone is connected to the router by Telnet and stop them from making further changes.Which commands will accomplish these options?（）

Given a subnet mask of 255.255.255.224, which of the following addresses can be assigned to network hosts?（）

A technician at TestKing needs to update the network documentation. One of the tasks includes documenting the name of the IOS image file of each router in the network.Which commands could be used to find this information?（）

Which of the following options lists the steps in PPP session establishment in the correct order?（）