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Q8. Robert is configuring a Frame Relay network. The configuration commands are listed below:
R(config)#interface serial 0
R(config-if)#ip address 192.168.0.1 255.255.255.0
R(config-if)#interface serial 0.1 point-to-point
R(config-if)#frame-relay interface-dlci 116
R(config-if)#exit
R(config)#
Which of the following commands should not be given?
B. ip address 192.168.0.1 255.255.255.0 C. frame-relay interface-dlci 116 D. exit
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Correct answer: B
Explanation:
Frame-Relay support point-point and multipoint connection types. In point-to-point connection type, a single sub interface establishes a PVC connection to another physical interface or sub-interface. In multipoint connection type, a single sub-interface is used to establish multiple PVC connections to several physical interfaces or sub-interfaces. In multipoint Frame-Relay network, split horizon rule is applicable to broadcast traffic.
Another important thing to note when configuring Frame-Relay using sub-interfaces: The physical interface on which sub-interfaces are configured would not be assigned any IP address. Even if one is assigned, it should be removed prior to configuring Frame-Relay. Note that if an IP address is assigned to a physical interface, the sub-interfaces defined within the physical interface will not receive any frames.
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