A customer has several small branches and wants to deploy a Wi-Fi solution with local management using CAPWAP. Which deployment model meets this requirement?
Correct answer is Mobility Express. From Encor Cert guide: "As you might have guessed, it is also possible to move the WLC even below the access layer and into an AP. Figure 18-7 illustrates the Mobility Express topology, where a fully functional Cisco AP also runs software that acts as a WLC. This can be useful in small scale environments,such as small, midsize, or multi-site branch locations, where you might not want to invest in dedicated WLCs at all. The AP that hosts the WLC forms a CAPWAP tunnel with the WLC, as do any other APs at the same location. A Mobility Express WLC can support
up to 100 APs."
D is correct
Mobility Express allows a single access point to act as a virtual controller to manage other access points within the branch. This model supports CAPWAP and provides a cost-effective and scalable solution for managing Wi-Fi in small branch environments without the need for a dedicated hardware controller at each site.
Can confirm it's D. Checked properly in the ccnp and ccie encor official cert guide (page 982):
Figure 18-6 The Shortest Data Path Through an Embedded Wireless Network Topology
As you might have guessed, it is also possible to move the WLC even below the access layer and into an AP. Figure 18-7 illustrates the Mobility Express topology, where a fully functional Cisco AP also runs software that acts as a WLC. This can be useful in small scale environments, such as small, midsize, or multi-site branch locations, where you might not want to invest in dedicated WLCs at all. The AP that hosts the WLC forms a CAPWAP tunnel with the WLC, as do any other APs at the same location. A Mobility Express WLC can support up to 100 APs.
A does seem plausible, but requires an extra component: a dedicated WLC which would have to be at the branch office in order for the management to be local.
But we're dealing with small branch offices here, so we want lower cost.
With Mobility Express, the difference between CAPWAP image and ME image is whether the WLC function is included or not. For CAPWAP image, ME based WLC is not included so it can't act as a WLC. With ME image, it can act as a WLC.
But in an ME environment, the APs not operating as the WLC still communicate to the designated/elected WLC by CAPWAP.
Correct answer is in fact A. Mobility express is controller-less thus does not create a CAPWAP tunnel.
https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-2/b_Mobility_Express_Deployment_guide/b_Mobility_Express_Deployment_guide_chapter_01100.html
https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/mobility-express/solution-overview-c22-741355.pdf
According to: CCNP and CCIE Enterprise Core ENCOR 350-401 Official Cert Guide - Page 520, the AP does create a CAPWAP tunnel:
"Figure 18-7 illustrates the Mobility Express topology, where a fully functional
Cisco AP also runs software that acts as a WLC. This can be useful in small scale environments,
such as small, midsize, or multi-site branch locations, where you might not want to
invest in dedicated WLCs at all. The AP that hosts the WLC forms a CAPWAP tunnel with
the WLC, as do any other APs at the same location."
So D would be correct
The links you provided do not say that CAPWAP isn't used if you are using an ME image.
In fact, point 2b in the URL effectively says you'd use the CAPWAP image if you don't want the 1800 series AP to be able to be a WLC in an ME environment.
CAPWAP is still used between the ME AP elected to be the WLC and all other APs, whether non-elected APs have ME or CAPWAP image.
Local mode is plausible, but would require the extra cost and configuration of an actual WLC, but D is best answer for a branch office that wants local configuration. For a small branch office, you'd want lowest cost.
I think D is the correct
Study Guide book
Figure 18-7 WLC Location in a Mobility Express Wireless Network
Topology see in Mobility Express use management CAPWAP
The AP that hosts the WLC forms a CAPWAP tunnel with the WLC, as do any other APs at the same location. A Mobility Express WLC
Cisco AP Modes Local mode: The default lightweight mode that offers one or more
functioning BSSs on a specific channel. During times when it is not
transmitting, the AP scans the other channels to measure the level of
noise, measure interference, discover rogue devices, and match against
intrusion detection system (IDS) events.
A.
Determining the image on the Access Point
The Cisco 1830, 1850, 2800 and 3800 series access points can either have CAPWAP image or the Cisco Mobility Express image which is capable of running the virtual Wireless LAN controller function on the Access Point.
It is either or situation
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