Which IPv6 address correctly compresses the IPv6 unicast address 2001:0:0:0:0DB8:0:0:417A?

A. 2001:0DB8:417A

B. 2001::0DB8::417A

C. 2001:::0DB8::417A

D. 2001:0DB8:0:0:417A

E. 2001::DB8:0:0:417A

F. 2001:::0DB8:0:0:417A




 

Suggested Answer: E

The point of this question is the about the different form of Ipv6 address.
The IPv6 address is 128 bits long, written as eight 16-bit pieces, separated by colons.
Each piece is represented by four hexadecimal digits. You can compact multiple contiguous fields of zero even further. This is the exception to the rule that at least one digit must be present in every field. You can replace multiple fields of zeros with double colons (::).
Note that :: can replace only one set of contiguous zero fields.
Multiple ::s would make the address ambiguous.

This question is in 300-101 Cisco Implementing Cisco IP Routing (ROUTE) Exam
For getting Cisco Certified Network Professional (CCNP) Routing and Switching Certificate




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