Question 350
At Ironwood Public Services, the city network service team is preparing a new municipal office activation. The operational constraint is an approved redundant path. The change ticket is marked completed for this reported failure: Two endpoints intermittently lose access and ARP tables alternate between different MACs for one gateway IP. Which result BEST demonstrates that this specific issue was resolved?
Explanation
Correct Answer
The duplicate is removed and gateway IP-to-MAC resolution remains stable. This is the relevant acceptance observation for the reported issue: Two endpoints intermittently lose access and ARP tables alternate between different MACs for one gateway IP. The intended corrective choice is: Investigate duplicate IP or incorrect gateway assignments using ARP and address inventory evidence. At Ironwood Public Services, this outcome verifies actual operation under an approved redundant path, rather than only a ticket marked complete.
Incorrect Answers
A supported optic and clean fiber path produce a stable operational link. Such an observation would verify a separate issue: A newly cabled fiber uplink reports no light and the transceiver inventory shows an unsupported optic. It would follow the distinct action: Validate the exact transceiver model and optical path before attempting Layer 2 policy changes. Here the reported failure is Two endpoints intermittently lose access and ARP tables alternate between different MACs for one gateway IP. The decisive result for Ironwood Public Services must instead be: The duplicate is removed and gateway IP-to-MAC resolution remains stable.
Power allocation fits the camera class and the camera boots without denial counters increasing. Such an observation would verify a separate issue: A PoE-powered camera stays dark while the link is otherwise healthy; telemetry reports insufficient allocation budget. It would follow the distinct action: Diagnose available PoE budget and port power limits rather than changing VLAN or routing. Here the reported failure is Two endpoints intermittently lose access and ARP tables alternate between different MACs for one gateway IP. The decisive result for Ironwood Public Services must instead be: The duplicate is removed and gateway IP-to-MAC resolution remains stable.
The host MAC appears in VLAN 140 and can reach its expected local peers. Such an observation would verify a separate issue: A user connects to an access port but cannot reach peers because the switchport is assigned VLAN 40 instead of required VLAN 140. It would follow the distinct action: Compare port VLAN membership with the documented access VLAN and correct the mismatch. Here the reported failure is Two endpoints intermittently lose access and ARP tables alternate between different MACs for one gateway IP. The decisive result for Ironwood Public Services must instead be: The duplicate is removed and gateway IP-to-MAC resolution remains stable.