Question 90
At a design studio in Berlin, engineers report that a phone stays dark although its data VLAN is configured and the port is up. The work affects wireless workstations and video conferences. What evidence should the engineer request after the repair?
Explanation
Correct Answer
This observation tests the PoE budgets and AP or phone edge connectivity requirement at a design studio in Berlin. The expected result is that the AP or phone receives sufficient negotiated power and remains stable while the switch reports healthy power allocation. The necessary correction is to verify PoE class, available power budget, physical port behavior and the powered device requirements before changing network policy; a saved configuration alone would not prove it is working. In this case, the observed fault is that a phone stays dark although its data VLAN is configured and the port is up.
Incorrect Answers
At a design studio in Berlin, the observation may be useful for a separate Aruba Central inventory and device onboarding test, but it does not establish that a phone stays dark although its data VLAN is configured and the port is up has been resolved. The relevant check is the PoE budgets and AP or phone edge connectivity outcome.
At a design studio in Berlin, this measures a different network requirement, Zero-touch provisioning and initial management. The case describes that a phone stays dark although its data VLAN is configured and the port is up, so accepting this result would leave the primary fault without direct verification.
At a design studio in Berlin, the observation may be useful for a separate Campus uplinks, link speed and optics validation test, but it does not establish that a phone stays dark although its data VLAN is configured and the port is up has been resolved. The relevant check is the PoE budgets and AP or phone edge connectivity outcome.