Which PPP subprotocol negotiates authentication options?（）

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

A.defines the source IP address that is used in all broadcast packets on DLCI 202
B.defines the DLCI that is used for all packets that are sent to the 192.168.1.2 IP address
C.defines the destination IP address that is used in all broadcast packets on DLCI 202
D.defines the DLCI on which packets from the 192.168.1.2 IP address are received

单项选择题What is the first 24 bits in a MAC address called?（）

A. NIC
B. BIA
C. OUI
D. VAI

单项选择题What occurs on a Frame Relay network when the CIR is exceeded?（）

A.All TCP traffic is marked discard eligible.
B.All UDP traffic is marked discard eligible and a BECN is sent.
C.All TCP traffic is marked discard eligible and a BECN is sent.
D.All traffic exceeding the CIR is marked discard eligible.

多项选择题It has become necessary to configure an existing serial interface to accept a second Frame Relay virtual circuit.Which of the following processes are required to accomplish this task?（）

A.configure static frame relay map entries for each subinterface network.
B.remove the ip address from the physical interface
C.create the virtual interfaces with the interface command
D.configure each subinterface with its own IP address
E.disable splithorizon to prevent routing loops between the subinterface networks
F.encapsulate the physical interface with multipoint PPP

单项选择题which command allows you to verify the encapsulation type (CISCO OR IETF) for a frame relay link?（）

A.show frame-relay map
B.show frame-relay lmi
C.show inter serial
D.show frame-relay pvc