COMPUTER NETWORKING

NETWORK LAYER

NEXT GENERATION IP

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which IPv6 network prefix is only intended for local links and can not be routed?

A	FF00::12
B	FC00::/7
C	2001::/3
D	FE80::/10

Explanation:

Detailed explanation-1: -IPv6 defines link-local addresses, with so-called link-local scope, intended to be used only on a single LAN and never routed. These begin with the 64-bit link-local prefix consisting of the ten bits 1111 1110 10 followed by 54 more zero bits; that is, fe80::/64.

Detailed explanation-2: -IPv6 link-local addresses are defined by RFC 4291 (IPv6 Addressing Architecture) and are covered by the prefix fe80::/10.

Detailed explanation-3: -The prefix-length in IPv6 is the equivalent of the subnet mask in IPv4. However, rather than being expressed in four octets like it is in IPv4, it is expressed as an integer between 1 through 128.

Detailed explanation-4: -An IPv6 address is split into two parts: a network and a node component. The network component is the first 64 bits of the address and is used for routing. The node component is the later 64 bits and is used to identify the address of the interface.

There is 1 question to complete.