why is an arp query sent within a broadcast frame? why is an arp response sent within a frame with a specific destination mac address?

An active cell. a circular reference occurs when a cell in an excel 2010 worksheet refers to itself.

Once the twisted pair cable is connected and a network is established the led lights at the back of the computer should be steady. on most ethernet adapters nowadays, a steady green light means that the connection is actively connected to a valid partner at the opposite end. if the status of the led starts flashing, this means that there’s some activity and data is being transferred.