350-801 Question #303: Real Exam Question with Answer & Explanation

Question

What is the purpose of Mobile and Remote Access (MRA) in the Cisco UCM architecture?

Options

• AMRA is used to access Webex cloud services only if authenticated with on-premises LDAP
• BMRA is used to make secure PSTN calls by Cisco UCM only while on-premises authentication.
• CMRA is used to make B2B calls through Expressway registration.
• DMRA is used to access the collaboration services offered by Cisco UCM from off-premises

Explanation

The purpose of Mobile and Remote Access (MRA) in the Cisco UCM architecture is to allow off-premises users to securely access and utilize collaboration services offered by the on-premises Cisco Unified Communications Manager.

Common mistakes.

• A. MRA's core purpose is not limited to Webex cloud services, and while it supports various authentication methods, it's not exclusively tied to on-premises LDAP for Webex access.
• B. MRA facilitates secure calls through UCM, including PSTN calls, for off-premises users, but its primary function is not solely for secure PSTN calls and it provides access beyond just calls.
• C. While MRA uses the Expressway infrastructure, it primarily enables remote users to connect to internal services, whereas B2B calls are typically about inter-organizational communication, distinct from MRA's user-centric remote access.

Concept tested. Mobile and Remote Access (MRA) functionality

Reference. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/expressway/config_guide/X14-0-1/b_Cisco-Expressway-Basic-Configuration-Guide-X14-0-1/b_Cisco-Expressway-Basic-Configuration-Guide-X14-0-1_chapter_010.html

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