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.
Explanation:
Inverse Address Resolution Protocol (Inverse ARP) was developed to provide a mechanism
for dynamic DLCI to Layer 3 address maps. Inverse ARP works much the same way
Address Resolution Protocol (ARP) works on a LAN. However, with ARP, the device knows
the Layer 3 IP address and needs to know the remote data link MAC address. With Inverse
ARP, the router knows the Layer 2 address which is the DLCI, but needs to know the remote
Layer 3 IP address.
When using dynamic address mapping, Inverse ARP requests a next-hop protocol address
for each active PVC. Once the requesting router receives an Inverse ARP response, it
updates its DLCI-to-Layer 3 address mapping table. Dynamic address mapping is enabled
by default for all protocols enabled on a physical interface. If the Frame Relay environment
supports LMI autosensing and Inverse ARP, dynamic address mapping takes place
automatically. Therefore, no static address mapping is required.