Definition - What does Address Resolution mean?
Techopedia explains Address Resolution
An address resolution simply serves to translate a name address like a computer name in a network into an address that a machine or network understands. For example, in a TCP/IP network environment, Internet users type in the domain name of the website they want to access and the Address Resolution Protocol (ARP) completes address resolution in order to get the IP and MAC address of the node being named. This is important because computers cannot understand human-language so they need a component to convert the human-readable name into a machine-readable one. Address resolution is simply the process of locating or pointing the actual machine address of the node that the user wants to access by reading the human-readable name and relating it to a look-up table, or broadcasting an address lookup request to all nodes in the event that the machine address is not found on the table. The node in question then replies and provides its machine address.
For example, when PC ALPHA wants to send data to PC BETA, it needs to look up PC BETA’s IP address on a lookup table to find its MAC address in order to know exactly where to send the data. In the event that the address is not found, PC ALPHA sends a request that is received by all nodes, and it is then PC BETA that replies with its IP and MAC addresses.
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