Refer to the exhibit. PC1 on VLAN 10 wants to communicate with PC2 on VLAN 20. PC1 sends an ARP request to its default gateway, GW1. How does GW1 respond?
- It sends an ARP reply to PC2.
- It sends an ARP request to PC1.
- It forwards the ARP request from PC1 to PC2.
- It sends an ARP reply to PC1 with its own MAC address.
Explanation: GW1 is configured with subinterfaces to accommodate the two different networks related to VLAN10 and VLAN20. If PC1 does not know the MAC address of PC2, PC1 will broadcast an ARP on the VLAN10 network. GW1 will see the broadcast and determine that the IP address of PC2 is on a different network. GW1 will send its MAC address back to PC1.
Exam with this question: Networking Devices and Initial Configuration Module 7.2.3 Address Resolution Quiz
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