What are two rules for compacting IPv6 addresses? (Choose two.)
A.
Every 16-bit segment segment that consists of all zeroes can be represented with a single
colon.
B.
The trailing zeroes in any 16-bit segment do not have to be written.
C.
The leading zeroes in any 16-bit segment do not have to be written.
D.
Any single, continuous string of one or more 16-bit segments that consists of all zeroes can be
represented with a double colon.
E.
The maximum number of times a double colon can replace a 16-bit segment that consists of all
zeroes is two.
F.
Two zeroes in the middle of any 16-bit segment do not have to be written.
Explanation:
http://www.9tut.com/ipv6-tutorial