Cisco Certified Network Associate (CCNA) Practice Exam

What command is used to create a static Frame Relay map to a specific IP address?

1. #frame-relay map ip 172.16.1.3 196

2. #configure frame-relay 172.16.1.3 196

3. #frame-relay map 172.16.1.3 196 broadcast

4. #static frame-relay map 172.16.1.3 196

The correct answer is: #frame-relay map 172.16.1.3 196 broadcast

The command to create a static Frame Relay map to a specific IP address properly incorporates the necessary syntax for establishing a mapping between a Layer 3 IP address and a Layer 2 Frame Relay Data Link Connection Identifier (DLCI). In this context, the command consists of the "frame-relay map" portion which indicates that you are mapping an IP address to a specific DLCI. Including the "broadcast" keyword is crucial as it allows for broadcasts to be sent to the remote IP address across the Frame Relay network. Without this keyword, the static mapping would restrict broadcast traffic, which is often necessary for protocols that rely on broadcasts, like ARP (Address Resolution Protocol). Thus, this command effectively tells the router to recognize the specified IP address (172.16.1.3) as reachable via the designated DLCI (196) and to allow broadcast packets, facilitating proper communication over the Frame Relay link.