Question 690
A wireless client can associate to an SSID but never obtains an IPv4 address, while neighboring wired clients obtain DHCP leases. Which ongoing operational safeguard best reduces the chance of recurrence?
Explanation
Correct Answer
This is a continuing control for the failure mode in which association success verifies radio access, not correct DHCP transport into the client subnet. It complements the immediate fix instead of relying on a one-off correction.
Incorrect Answers
That control is useful for a different failure, such as when a controller-based WLAN is intended to tunnel client data centrally, but a new AP group forwards it locally due to the wrong forwarding profile. It would leave the present failure mode insufficiently addressed.
That control is useful for a different failure, such as when a warehouse handheld disconnects while roaming between APs because its target radios have different SSID security settings. It would leave the present failure mode insufficiently addressed.
That control is useful for a different failure, such as when a client station repeatedly attempts to join a hidden SSID but technicians attribute its failure solely to low signal. It would leave the present failure mode insufficiently addressed.