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? （）

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

Which of the following host addresses are member of networks that can be routed across the public Internet? （）

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

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 if addresses can be assigned to host devices?（）

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

Which of the following correctly describe steps in the OSI data encapsulation process?（）

Which statement describes the rule of split horizon?（）

The following access list was applied outbound on he E0 interface connected to the 192.168.1.8/29 LAN:access-list 123 deny tcp 192.168.1.8 0.0.0.7 eq 20 anyaccess-list 123 deny tcp 192.168.1.9 0.0.0.7 eq 21 anyWhat effect will this access list have?（）