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Question
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Which two statements are true about IPv6 Unique Local Addresses?
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They are identical to IPv4 private addresses
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They use the prefix FC00::/7
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They are defined by RFC 1884
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They use the prefix FEC0::/10
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They can be routed on the IPv6 global internet
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Explanation:
Detailed explanation-1: -What two statements about IPv6 addresses are true? Two colons (::) are used to represent successive hexadecimal fields of zeros & A single interface can have multiple IPv6 addresses of different types.
Detailed explanation-2: -A range of FC00::/7 means that IPv6 Unique Local addresses begin with 7 bits with exact binary pattern as 1111 110L. If the value of single binary bit “L” is set to 1, the Unique local IPv6 multicast address is locally assigned. The value 0 may be defined in the future.
Detailed explanation-3: -The FC00::/7 prefix is reserved for unique local addresses, however when you implement this you have to set the L-bit to 1 which means that the first two digits will be FD.
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