The commandframe-relaymap ip 10.121.16.8 102 broadcast was entered on the router. Which of the following statements is true concerning this command?
A: This command should be executed from the global configuration mode.
B: The IP address 10.121.16.8 is the local router port used to forward data.
C: 102 is the remote DLCI that will receive the information.
D: This command is required for all Frame. Relay configurations.
E: The broadcast option allows packets, such asRIPupdates, to be forwarded across the PVC.
Correct Answers:E
关于命令frame-relay map ip 10.121.16.8 102 broadcast ,这个命令用于手工静态添加一条映射，到达10.121.16.8的流量封装一个DLCI号为102，而且这条PVC是支持广播的流量的，比如RIP的更新包。因为在默认的情况下，帧中继的网络为非广播的，而RIP在其上是无法发包的。
Refer to the exhibit. S0/0 on R1 is configured as a multipoint interface to communicate with R2 and R3 in this hub-and-spoke Frame. Relay topology. While testing this configuration, a technician notes that pings are successful from hosts on the 172.16.1.0/24networkto hosts on both the 172.16.2.0/25 and 172.16.2.128/25 networks. However, pings between hosts on the 172.16.2.0/25 and 172.16.2.128/25 networks are not successful. What could explain this connectivity problem?
A: The ip subnet-zero command has been issued on the R1 router.
B: The RIP v2 dynamic routing protocol cannot be used across a Frame. Relay network.
C: Split horizon is preventing R2 from learning about the R3 networks and R3 from learning about the R2 networks.
D: The 172.16.2.0/25 and 172.16.2.128/25 networks are overlapping networks that can be seen by R1, but not between R2 and R3.
E: The 172.16.3.0/29 network used on the Frame. Relay links is creating a discontiguous network between the R2 and R3 router subnetworks.
ACiscorouter that was providing Frame. Relay connectivity at a remote site was replaced with a different vendor’s frame. relay router. Connectivity is now down between the central and remote site. What is the most likely cause of the problem?
A: mismatched LMI types
B: incorrect DLCI
C: mismatched encapsulation types
D: incorrect IP address mapping
Correct Answers:C
通常帧中继网络的连通性问题是由于数据帧封装类型不匹配所造成的。
Refer to the exhibit. Which two statements are true based the output of the show frame-relay lmi command issued on the Branch router? (Choose two.
A:LMI messages are being sent on DLCI 0.
B:LMI messages are being sent on DLCI 1023.
C:Interface Serial0/0 is not configured to encapsulate Frame. Relay.
D:The Frame. Relayswitchis not responding to LMI requests from the router.
E:The LMI exchange between the router and Frame. Relay switch is functioning properly.
F:The router is providing a clock signal on Serial0/0 on the circuit to the Frame. Relay switch.
Correct Answers:A, D
Show frame-relay lmi显示LMI不匹配的信息，Num Status Enq. Sent xxx是否随着Num Status msgs Rcvd yyy的数字在增长，如果只发不收，说明交换机or LMI匹配错误。
Refer to the exhibit. What is the meaning of the term dynamic as displayed in the output of the show frame-relay map command shown?
A: The Serial0/0 interface is passing traffic.
B: The DLCI 100 was dynamically allocated by the router.
C: The Serial0/0 interface acquired the IP address of 172.16.3.1 from a DHCP server.
D: The DLCI 100 will be dynamically changed as required to adapt to changes in the Frame. Relay cloud.
E: The mapping between DLCI 100 and the end station IP address 172.16.3.1 was learned through Inverse ARP.
