6.Which Cisco IOS command confirms that a router has established Layer 1 and Layer

2 connectivity to the telephone company ISDN switch?

 

 A. show isdn active

 

 B. show isdn bri0/0

 

 C. show isdn status

 

 D. show ip interface

 

 E. show isdn channel

 

7.A network administrator has installed a new router in the Lisbon office and is

unable to backup the IOS image of the new router to a TFTP server located in the

Gibraltar office. Given the network diagram, identify the source of the problem.

 

 B. incorrect subnet mask of the TFTP server

 

 C. incorrect IP address of the TFTP server

 

 D. incorrect IP address on E0 of the Gibraltar router

 

 E. incorrect subnet mask on the Lisbon router

 

8.Given the network diagram, assume that ports 1 through 3 are assigned to VLAN1

and ports 4 through 6 are assigned to VLAN2 on each switch. The switches are

interconnected over a trunked link. Which of the following conditions would

verify proper VLAN and trunk operation? (Choose three.)

 

 B. Host 1-1 can ping Host 4-2

 

 C. Host 1-1 can not ping Host 1-2

 

 D. Host 4-1 can not ping Host 1-2

 

 E. Host 4-1 can ping Host 4-2