When creating an IPv6 unique local unicast address range, what size is used for a subnet field?
A) 20 bits
B) 16 bits
C) 10 bits
D) 4 bits
B
Explanation: B) The following structure is used when creating a unique local unicast address range:
The first 2 hex digits are FD.
The next 10 hex digits (40 bits) are used for a unique global ID.
The next 4 hex digits (16 bits) are used as a subnet field.
The last 16 hex digits (64 bits) are used as an interface ID field.
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