Which three are equivalent forms of the IPv6 address
2011:0000:0000:0000:2010:0000:0000:000F? (Choose three.)
A.
2011:0:0:0:2010:0:0:F
B.
2011::2010::000F
C.
2011:0:0000:0000:2010::000F
D.
2011::2010:0:0:F
E.
2011::201:0000:0000:000F
F.
2011::201:0010:0010:000F
A.
2011:0:0:0:2010:0:0:F
C.
2011:0:0000:0000:2010::000F
D.
2011::2010:0:0:F
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Answer: A,C,D
Leading 0s in the address field are optional and can be compressed:
Example: 0000 = 0 (compressed form)
A pair of colons (::) represents successive fields of 0. However, the pair of colons is
allowed just once in a valid IPv6 address
Example1: 2001:db8:130F:0:0:9C0:876A:130B = 2001:db8:130F::9C0:876A:130B
(compressed form)
Example2: FF01:0:0:0:0:0:1 = FF01::1 (compressed form)
(CCIE Routing and Switching v5.0 Official Cert Guide Vol 1)
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