If I simplify the address 20010000000000fe000000000000cdef I

If I simplify the address 2001:0000:0000:00fe:0000:0000:0000:cdef, I get ________.

A) 2001::00fe:::cdef

2001::fe::::cdef

2001:::fe::::cdef

2001:::fe::cdef

Solution

Answer: C) 2001:::fe::::cdef

2001:0000:0000:00fe:0000:0000:0000:cdef,

If there are more than one continuous ZERO(0000) octet then you can omit zero:
   2001:::00fe::::cdef