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User:Rouslan.kv/DNS vs IP vsMAC

From Wikiversity
MAC DNS IPv4
Internet Protocol Suite Layer Link layer Application layer Internet layer
Uniqueness theoretically unique absolutely unique unique in the same network
Address size 48-bit 127 levels 63 chars each but may not exceed the length of 253 characters in its textual representation 32 bit
Purpose Device physical address domain- to IP-address mapping Host address withing the same network