Refer to the exhibit. A network engineer is troubleshooting why PC1 cannot communicate with hosts in other networks. What is the problem?
- The subnet mask that is configured on PC1 is the same as the mask that is configured on the router R1 interface.
- The IP address that is configured on PC1 is in a different network than the gateway address on router R1.
- A default route has not been configured on router R1.
- A default gateway IP address of 10.20.1.1 needs to be configured on PC1.
Explanation: For PC1 to be able to communicate with hosts on the other networks, it needs to have an IP address in the same network as the gateway to which it is connected. Its current address of 10.100.1.10/16 is not within the 10.10.0.0/16 network of the gateway interface on R1 (address 10.10.1.1/16).
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