What are two rules for compacting IPv6 addresses? (Choose two.) Select 2 response(s).
A.
The maximum number of times a double colon can replace a 16-bit segment that consists of all zeroes is two.
B.
The leading zeroes in any 16-bit segment do not have to be written.
C.
Every 16-bit segment that consists of all zeroes can be represented with a single colon.
D.
The trailing zeroes in any 16-bit segment do not have to be written.
E.
Any single, continuous string of one or more 16-bit segments that consists of all zeroes can be represented with a double colon.
F.
Two zeroes in the middle of any 16-bit segment do not have to be written.
Answer: B E
Explanation
These rules are very popular for compacting IPv6 addresses, if you are not sure about them please read my IPv6 tutorial.
http://www.9tut.com/ipv6-tutorial
BE