Refer to the exhibit. The partial configuration that is shown was used to configure router on a stick for VLANS 10, 30, and 50. However, testing shows that there are some connectivity problems between the VLANs. Which configuration error is causing this problem?

Question:
Refer to the exhibit. The partial configuration that is shown was used to configure router on a stick for VLANS 10, 30, and 50. However, testing shows that there are some connectivity problems between the VLANs. Which configuration error is causing this problem?

• A configuration for the native VLAN is missing.
• There is no IP address configured for the FastEthernet 0/0 interface.
• The wrong VLAN has been configured on subinterface Fa0/0.50.​
• The VLAN IP addresses should belong to the same subnet.​

Explanation: According to the configuration shown, the router was configured to use the wrong VLAN (500 instead of 50) on subinterface Fa0/0.50. This will prevent devices that are configured on VLAN 50 from communicating with subinterface Fa0/0.50. When configuring subinterfaces, the Fa0/0 interface has to be configured with no IP address, and each subinterface has to be assigned to a different subnet.

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