Name the dynamic mapping protocol in which a physical address is found for a given IP address.
Name the dynamic mapping protocol in which a physical address is found for a given IP address.
The correct option is B ARP (Address Resolution Protocol)
Name the dynamic mapping
protocol in ARP (Address Resolution Protocol) a physical address is found for a
given IP address.
Address Resolution
Protocol (ARP) is a protocol for mapping an Internet Protocol address (IP
address) to a physical machine address that is recognized in the local network.
For example, in IP Version 4, the most common level of IP in use today, an
address is 32 bits long.
In a layer two switch,
there is not an ARP table, only a forwarding table. The switch records each src
MAC address it sees inbound in the forwarding table, and attributes it to the
port so frames with a dst MAC will only get sent to the port known for that
MAC.
The Address Resolution
Protocol (ARP) feature performs a required function in IP routing. ARP finds
the hardware address, also known as Media Access Control (MAC) address, of a
host from its known IP address. ARP maintains a cache (table) in which MAC addresses
are mapped to IP addresses.
In an Ethernet local area
network, however, addresses for attached devices are 48 bits long. (The
physical machine address is also known as a Media Access Control or MAC
address.) A table, usually called the ARP cache, is used to maintain a
correlation between each MAC address and its corresponding IP address.
Name the dynamic mapping protocol in ARP (Address Resolution Protocol) a physical address is found for a given IP address.
Address Resolution Protocol (ARP) is a protocol for mapping an Internet Protocol address (IP address) to a physical machine address that is recognized in the local network. For example, in IP Version 4, the most common level of IP in use today, an address is 32 bits long.
In a layer two switch, there is not an ARP table, only a forwarding table. The switch records each src MAC address it sees inbound in the forwarding table, and attributes it to the port so frames with a dst MAC will only get sent to the port known for that MAC.
The Address Resolution Protocol (ARP) feature performs a required function in IP routing. ARP finds the hardware address, also known as Media Access Control (MAC) address, of a host from its known IP address. ARP maintains a cache (table) in which MAC addresses are mapped to IP addresses.
In an Ethernet local area network, however, addresses for attached devices are 48 bits long. (The physical machine address is also known as a Media Access Control or MAC address.) A table, usually called the ARP cache, is used to maintain a correlation between each MAC address and its corresponding IP address.
