NETWORK LAYER
NEXT GENERATION IP
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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How many bits in “Global Routing Prefix”?
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16 bits
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48 bits
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64 bits
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47 bits
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Explanation:
Detailed explanation-1: -The 48-bit prefix that we received is typically called the global routing prefix or site prefix. The interface ID is normally 64 bit which means we have 16 bits left to create subnets.
Detailed explanation-2: -Large customers get a /48 prefix. That gives them 65, 536 /64 subnets. Medium customers get a /56 prefix. That gives them 256 /64 subnets.
Detailed explanation-3: -The global routing prefix that is assigned to the organization has 48 bits.
Detailed explanation-4: -The implementation chosen for IPv6, however, assigns 48 bits to the routing prefix and 16 bits to the subnet identifier.
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