Aruba Mobility Expert (Written) case studies
Aruba Mobility Expert (Written) · Put your knowledge to work in context.
The Aruba Mobility Expert written exam is the knowledge-based assessment associated with expert-level Aruba mobility certification. It targets senior wireless engineers, network architects, and consultants who already design, deploy, and operate Aruba mobility controllers and access points at scale and want to validate that depth formally. The Aruba Mobility Expert (Written) case studies are 8 cases and about 2,718 words.
1Roaming Failures After L3 Redesign
A campus with two Mobility Controllers (MC-A in Building 1, MC-B in Building 2) is connected by a routed core. Originally both controllers sat in the same VLAN and clients roamed freely.
464 words, about 2 min2HA Pair Fails Over During Peak, Clients Suffer
A pair of Mobility Controllers is configured as an active-standby HA pair using VRRP for the controller IP. During a peak-hour test, the active controller was rebooted.
378 words, about 2 min3High-Density Auditorium: Clients Associate but Throughput Collapses
A 1,200-seat auditorium is fitted with 24 APs on 5 GHz and 12 on 2.4 GHz, all with default power and channel settings. During a lecture with about 900 devices (many phones and laptops), clients associate but experience very low throughput and frequent retries.
386 words, about 2 min4802.1X Works for Staff, Fails for Contractor Devices
An enterprise runs 802.1X with EAP-TLS for staff laptops via a RADIUS server. A new group of contractor tablets must join the same SSID but cannot be issued corporate certificates.
299 words, about 1 min5OSPF Adjacency Flaps After Controller Uplink Change
A Mobility Controller's uplink was moved from an access switch to a new distribution switch to increase bandwidth. The controller runs OSPF to advertise its management and client VLANs into the routed core.
316 words, about 2 min6Intermittent Client Drops That Nobody Can Reproduce
Users in one wing report intermittent drops - a few seconds of no connectivity several times an hour, worse in the afternoon. The help desk cannot reproduce it.
304 words, about 2 min7Firmware Upgrade Window Causes Outage
An operations team schedules a controller firmware upgrade during a Saturday maintenance window (02:00–05:00). The controller is an HA pair.
295 words, about 1 min8Guest Onboarding Scales Past the Help Desk
A venue offers guest Wi-Fi through a captive portal with self-registration. Attendance grew from 300 to 3,000 daily guests.
276 words, about 1 min