N10-005 · Question #421
N10-005 Question #421: Real Exam Question with Answer & Explanation
The correct answer is D: Wrong gateway. The management interface is correctly placed on the 192.168.10.0/24 network (IP 192.168.10.2), but the default gateway is set to 192.168.11.1 - which is on a completely different subnet (192.168.11.0/24). A router can only serve as a default gateway if it shares the same subnet a
Question
Options
- AVLAN assignment
- BWrong subnet mask
- CSwitching loop
- DWrong gateway
Explanation
The management interface is correctly placed on the 192.168.10.0/24 network (IP 192.168.10.2), but the default gateway is set to 192.168.11.1 - which is on a completely different subnet (192.168.11.0/24). A router can only serve as a default gateway if it shares the same subnet as the device using it. Because the gateway IP is unreachable from 192.168.10.0/24, the switch cannot route traffic off its local segment, making remote administration from outside that subnet impossible. The correct gateway should be an address within 192.168.10.0/24 (e.g., 192.168.10.1). The subnet mask, VLAN, and STP configuration all appear normal.
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