What are three parts of an IPv6 global unicast address? (Choose three.)
A. an interface ID that is used to identify the local host on the network.
B. an interface ID that is used to identify the local network for a particular host.
C. a subnet ID that is used to identify networks inside of the local enterprise site
D. a global routing prefix that is used to identify the network portion of the address that has been provided by an ISP
E. a global routing prefix that is used to identify the portion of the network address provided by a local administrator
Correct Answer: ACD
IPv6 includes two different unicast address assignments:
+ Global unicast address
+ Link-local address The global unicast address is globally unique in the Internet. The example IPv6 address that is shown below is a global unicast address.
+ Site prefix (global routing prefix): defines the public topology of your network to a router. You obtain the site prefix for your enterprise from an ISP or Regional Internet Registry (RIR).
+ Site Topology and Subnet ID: the subnet ID defines an administrative subnet of the network and is up to 16 bits in length. You assign a subnet ID as part of IPv6 network configuration. The subnet prefix defines the site topology to a router by specifying the specific link to which the subnet has been assigned
+ Interface ID: identifies an interface of a particular node. An interface ID must be unique within the subnet.
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