Which three are equivalent forms of the IPv6 address 2011:0000:0000:0000:2010:0000:0000:000F?

Which three are equivalent forms of the IPv6 address
2011:0000:0000:0000:2010:0000:0000:000F? (Choose three.)

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

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Carlos Valentin

Carlos Valentin

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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John

John

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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