A Router with a BRI/T interface will be used for an ISDN Connection what other ISDN device is required to complete this connection? （）

What is the purpose of typing o/r 0x2142 during a password recover procedure on a 2500 series router?（）

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?（）

What is the subnetwork address for a host with IP address 201.100.5.68/28?（）

What feature of a networks switch allows an administrative to create separate broadcast domains?（）

An administrator would like to configure a switch over a virtual terminal connection from locations outside of the local LAN. Which of the following are required in order for the switch to be configured from a remote location? （）

Which of the following statements regarding routed and routing protocols are true?（）

TestKing.com has allocated the IP add 199.144.27.0 is its network, to provide flexibility for the LAN design, a subnet mask of 255.255.255.240 has been chosen. Which of the following address can be assigned to LAN on the resulting subnets.（）

Which command is used to display the placement and direction of an IP access control list on a router?（）

A router with a serial interface will be used for an ISDN link.What other function group devices are required to complete the connection to the service provider? （）