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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What value does an IPv6 link-local address begin with?
A
::
B
FC00::/7
C
FE80::/10
D
::1
Explanation: 

Detailed explanation-1: -An IPv6 link-local address consists of the link-local prefix FE80::/10 (the 10 most significant bits are 1111111010) and an interface ID in the IEEE EUI-64 format (an EUI-64 interface ID can be created from an extended EUI-48 bit MAC address).

Detailed explanation-2: -the FE80::/10 are the link local addresses. It is correct that you don’t see them in the routing table: as explained in a previous thread actually it is a single IPv6 /64 subnet using eui-64 format what you get.

Detailed explanation-3: -link local – these addresses are used for sending packets over the local subnet. Routers do not forward packets with this addresses to other subnets. IPv6 requires a link-local address to be assigned to every network interface on which the IPv6 protocol is enabled. These addresses have a prefix of FE80::/10.

Detailed explanation-4: -Typically, link-local IPv6 addresses have “FE80” as the hexadecimal representation of the first 10 bits of the 128-bit IPv6 address, then the least-significant 64-bits of the address are the Interface Identifier (IID).

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