Which of the following is true of the IPv6 address ffOf::156f:0:bbd4::9a34? O Th
ID: 3909076 • Letter: W
Question
Which of the following is true of the IPv6 address ffOf::156f:0:bbd4::9a34? O This is a link-local address that can only be used to send unicast messages within a single LAN O This is a unique-local address that can only be used to send and receive traffic on a private internetwork, not on a public internetwork like the Internet. O This is a global unicast address that can be used to send and receive traffic on a public internetwork such as the Internet. This is not a valid IPv6 address. O This is a group-local address that can only be used to send and receive multicast traffic on a private network. O This is a broadcast-global address that can be used to send and receive broadcast messages throughout an entire internetwork, such as the Internet.Explanation / Answer
Ans: This is not a valid IPv6 address.
Because only one :: is allowed.
Most IPv6 addresses do not occupy all of their possible 128 bits. This condition results in fields that are padded with zeros or contain only zeros.
The IPv6 addressing architecture allows you use the two-colon (::) notation to represent contiguous 16-bit fields of zeros. For example, you might abbreviate the IPv6 address by replacing the two contiguous fields of zeros in the interface ID with two colons. The resulting address is 2001:0db8:3c4d:0015::1a2f:1a2b. Other fields of zeros can be represented as a single 0. You can also omit any leading zeros in a field, such as changing 0db8 to db8.
So the address 2001:0db8:3c4d:0015:0000:0000:1a2f:1a2b can be abbreviated as 2001:db8:3c4d:15::1a2f:1a2b.
You can use the two colon notation to replace any contiguous fields of all zeros in the IPv6 address. For example, the IPv6 address 2001:0db8:3c4d:0015:0000:d234::3eee:0000 can be collapsed into 2001:db8:3c4d:15:0:d234:3eee::.
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