Wireless Network Implementation (10%)

350-101 · 30 questions

• A logistics aisle has no Ethernet run, and the new access point there must carry clients and reach the controller through a nearby access point that does have a cable. Which architecture fits that aisle?
• A university is building SD-Access and wants user traffic from the wireless clients encapsulated to the fabric edge, not carried in a controller data tunnel, while the access points remain controlled by the wireless controller. Which architecture is that?
• At a plant, new access points join the wireless controller, but on several of them one radio never comes up. The switch reports that those ports are supplying a lower PoE class than the access points requested. What should be checked first?
• A retailer installed dashboard-managed access points in its stores and is waiting for them to join the on-premises Catalyst 9800. They never appear. Which architecture were those access points built for?
• Several engineers share one local admin account on a Catalyst 9800, and the security team wants a separate accounting record for each engineer's management login. Which change provides that?
• Warehouse clients on mesh access points all drop at once. The root access point has lost its Ethernet uplink, and the mesh access points have no other wired path. What failed?
• A university access point sits on an SD-Access edge, but a client capture shows user traffic still tunneled to the wireless controller. The design called for fabric data. What is missing?
• A branch uses FlexConnect local switching, but the switch port toward each access point is an access port in only the access-point VLAN. Locally switched clients associate and never get an address. What does that port need?
• A hotel runs local-mode access points. The guest VLAN was added on the access-point switch ports and was not added on the controller uplink. Guest clients associate and never get an address. Where does that VLAN have to exist?
• A retailer's dashboard-managed access points lose contact with the dashboard for an hour. Clients are already associated and use locally bridged VLANs. What happens to that client data during the outage?
• A lecture hall access point shows healthy client SNR and a 1 Gbps link to the switch that stays full while clients are busy. The access point and the cable can run faster than 1 Gbps. What is the limit?
• A warehouse access point shows clean client SNR, and its switch port negotiated 100 Mbps on a cable that should run at gigabit. Clients are slow only when they move real traffic. What is the limit?
• Office engineers can SSH to a Catalyst 9800, and the NOC subnet cannot. A management access restriction on the controller includes the office subnet and omits the NOC. What is missing?
• A store SSID in the cloud dashboard is set to bridge clients onto VLAN 30. The access-point switch port is an access port in VLAN 10. Clients get VLAN 10 addresses. Why?
• New access points are cabled only toward the Catalyst 9800 service port, which is the out-of-band management port. They never join. The wireless management interface is on a different network that the access points do not touch. What is wrong?
• A stadium crew mounts mesh access points and powers them up. No root access point is on the wired network yet. The mesh access points never join. What has to come up first?
• A fabric access point is joined and a client is passing traffic. A capture on the controller's data path shows none of that client's frames. What does the empty capture mean?
• Local-mode clients never get an address. The access switch has a DHCP scope on the access-point VLAN, and the controller's client VLAN has no DHCP path. Where does a local-mode client actually request an address?
• A store manager can open the cloud dashboard and see the WLAN, and every attempt to edit the SSID is refused. A network administrator edits the same SSID successfully. What is the manager missing?
• A root access point is joined and its 2.4 GHz radio is up. Mesh access points never appear. The mesh backhaul is 5 GHz, and that radio on the root is shut down. What is missing?
• A local-mode access point is cabled to a trunk. Its untagged VLAN on that trunk has no path to the controller, and the access point never joins. Client VLANs are supposed to live at the controller. What is wrong?
• Clients associate with a strong signal and then see corrupted transfers. The access-point switch port shows input errors and CRC errors climbing. The radios' retry counters are quiet. Where is the fault?
• One new access point never powers up. Other access points on the same switch are up, and the switch reports that its power budget is exhausted. What is the limit?
• An access point link is up, and the switch port is hardcoded to half duplex while the access point is set to negotiate. The port shows collisions and late collisions. Clients are slow only when they pass traffic. What is mismatched?
• A new store comes online from the dashboard with only a guest SSID. The staff SSID was never in the configuration applied to that store. Other stores that received the full configuration have both. What is missing at the new store?
• Store clients get an address from the access point and cannot reach anything on the store VLAN. The dashboard SSID is set to NAT at the access point. The store VLAN and its gateway are on the switch. What should the SSID do instead?
• A root access point is joined. A mesh access point at the far end of a stadium hears that root only weakly, and the backhaul never stays up. What is too weak?
• Engineers on the user VLAN cannot open a Catalyst 9800 management address. The same address opens from the admin VLAN. Wireless clients on the user VLAN are passing traffic. What is unreachable?
• A wired register is plugged into a mesh access point and works. When the mesh backhaul drops, the register drops too, even though its Ethernet cable is still connected. Why?
• A local-mode access point on an access port receives an address and never joins. That VLAN has no path to the controller. Other access points on a VLAN that can reach the controller join. What is wrong with this port?