Question 840
Following an incident at a stadium complex, the WLAN team documented this condition: A site turns on new access points before verifying switch ports, PoE budget and DHCP readiness. Which ongoing safeguard MOST directly prevents recurrence?
Explanation
Correct Answer
Use preflight PoE, DHCP, DNS and uplink validation for every new AP rollout. This repeatable safeguard addresses the mechanism—aP lifecycle readiness begins with power and wired underlay, not SSID creation alone—and reduces the chance that the specific fault recurs.
Incorrect Answers
Map mobility domains and VLAN boundaries before accepting roaming designs. This protects against another issue—a roaming audit sees good signal after handoff but an application session still breaks because clients get a new IP subnet—but is not the most direct prevention for a site turns on new access points before verifying switch ports, PoE budget and DHCP readiness.
Reconcile hardware disposal with Mist inventory and access records. This protects against another issue—a retired AP remains registered with active cloud administrative access long after removal from service—but is not the most direct prevention for a site turns on new access points before verifying switch ports, PoE budget and DHCP readiness.
Include compatibility, maintenance timing and rollback in AP replacement procedures. This protects against another issue—a branch plans AP replacement during business hours without version or rollback checks, risking incompatible client behavior—but is not the most direct prevention for a site turns on new access points before verifying switch ports, PoE budget and DHCP readiness.