350-401 Question #1156: Real Exam Question with Answer & Explanation

The correct answer is A: CAPWAP. This question asks for the specific tunnel protocol that enables seamless Layer 3 roaming for clients between Cisco AireOS and Cisco IOS XE Wireless LAN Controllers (WLCs).

Submitted by paula_co· Mar 6, 2026Domain list not provided

Question

Which tunnel type allows clients to perform a seamless Layer 3 roam between a Cisco AireOS WLC and a Cisco IOS XE WLC?

Options

ACAPWAP
BIPsec
CVPN
DEthernet over IP

Explanation

This question asks for the specific tunnel protocol that enables seamless Layer 3 roaming for clients between Cisco AireOS and Cisco IOS XE Wireless LAN Controllers (WLCs).

Common mistakes.

B. IPsec is a suite of protocols for securing IP communications through authentication and encryption, but it is not the native protocol used for client data tunneling and roaming in Cisco wireless architectures.
C. VPN is a general term for secure tunnels, but it does not specify the particular protocol that facilitates seamless client mobility between Cisco WLCs.
D. Ethernet over IP (EoIP) is a tunneling protocol used to extend Layer 2 networks over Layer 3, but it is not the standard mechanism for client roaming between Cisco WLCs.

Concept tested. CAPWAP for client roaming

Reference. https://www.cisco.com/c/en/us/td/docs/wireless/controller/8-5/config-guide/b_cg85/b_cg85_chapter_0100.html

Topics

#Cisco WLC#Wireless roaming#CAPWAP#Mobility tunneling

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