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Question :
What is the difference between physical address and logical address?


Category Computer Networks Interview Questions
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Added on 7/29/2006
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Answers:

A Physical address is a 48-bit flat address burned into the ROM of the NIC card which is a Layer1 device of the OSI model. This iis divided into 24-bit vendor code and 24-bit serial address. This is unique for each system and cannot be changed.

A Logical address is a 32- bit address assigned to each system in a network. This works in Layer-3 of OSI Model. This would be generally the IP address.



Simply we can say that Physical address is MAC address (Media Access Control) which inbuilt and Logical Address is the IP which is given manually.



Posted by: Delta    

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Simply physical address known as hardware address.IP address is known as logical address.Physical address is used for identify the PC on network and IP is used for identify the network on the PC mac address 48 bit address IP address 32 bit address.



Posted by: salim ep    

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Physical address is a address that is hard-coded into a h/w(say Network Adapter).
Whee as Logical address is a address that is logically written (say IP-Internet protocols )



Posted by: Sanjay    

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Physical Address : Its called as MAC Address

Logical Address: Its Called as Ip Address



Posted by: jeeva    

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Physical address is also called MAC address is assign by the manufacturer of the NIC Card.

Logical address is also called IP address which is used by the device of the network and internet layer.



Posted by: Mateen Khan    

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physical address is also called Media Access Control.
Logical address is also called internet protocol.



Posted by: kanhaiya    

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