350-801 Question #64: Real Exam Question with Answer & Explanation

The correct answer is A: SSO. Mobile and Remote Access (MRA) through Cisco Expressway supports Single Sign-On (SSO) for endpoints, allowing users to authenticate once and gain access to multiple collaboration services.

Edge Services

Question

Which endpoint feature is supported using Mobile and Remote Access through Cisco Expressway?

Options

ASSO
BH.323 registration proxy to Cisco Unified Communications Manager
CMGCP gateway registration
DSRST

Explanation

Mobile and Remote Access (MRA) through Cisco Expressway supports Single Sign-On (SSO) for endpoints, allowing users to authenticate once and gain access to multiple collaboration services.

Common mistakes.

B. H.323 registration proxy is not a core feature supported by MRA for endpoint registration; MRA primarily uses SIP for endpoint registration to CUCM.
C. MGCP (Media Gateway Control Protocol) gateways do not register through MRA; MRA is for endpoints like IP phones and soft clients, while MGCP is for gateway control.
D. SRST (Survivable Remote Site Telephony) provides call processing redundancy for IP phones at a remote site when the WAN link to CUCM fails, which is a local site survivability feature and not provided via MRA.

Concept tested. MRA supported endpoint features

Reference. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X14-0/mra/cisco-expressway-mra-deployment-guide-X14-0.html#CiscoExpressway-MRASingleSign-On

Topics

#Mobile and Remote Access (MRA)#Cisco Expressway#Single Sign-On (SSO)#Endpoint Connectivity

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