Question: ComputerA and ComputerB are located on the same subnet in an organizations TCP/IP local area network (LAN). ComputerA needs to send a message to ComputerB.
ComputerA and ComputerB are located on the same subnet in an organizations TCP/IP local area network (LAN). ComputerA needs to send a message to ComputerB. ComputerA knows ComputerBs IP address, but does not know ComputerBs MAC address.
From the following statements, select all that correctly describe the given scenario.
| ComputerA can send a message directly to ComputerB without knowing ComputerB's MAC address. | ||
| 1. Before sending a message to ComputerB, ComputerA must first issue an ARP broadcast to obtain ComputerBs MAC address. | ||
| 2. ARP packets used in this scenario are sent at the application layer. | ||
| 3. Before sending a message to ComputerB, ComputerA sends an ARP request only to a router, and the router responds with ComputerB's MAC address. | ||
| 4. After ComputerA learns ComputerBs MAC address, the MAC address is stored in ComputerAs address table for future use. |
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