350-801 Question #236: Real Exam Question with Answer & Explanation

Question

After an administrator installs the Cisco jabber Client, it fails to register with the cisco UCM server. Which two actions should be taken to troubleshoot this problem? (Choose two.)

Options

• AVerify the installation of the LMHOST file on the PC
• BVerify the configuration of the DNS SRV record.
• CVerify corporate firewall settings for client connections.
• DVerify Layer 3 connectivity on the gateway.
• EReboot the Cisco Unified Border Element Gateway.

Explanation

When a Cisco Jabber client fails to register with Cisco UCM, troubleshooting should focus on verifying the DNS SRV records, which are essential for client discovery of services, and checking corporate firewall settings that might block the necessary communication ports.

Common mistakes.

• A. The LMHOST file is a legacy Windows file for NetBIOS name resolution and is not used by Cisco Jabber for discovering Cisco UCM or other services.
• D. While Layer 3 connectivity is fundamental, verifying it 'on the gateway' is too specific; general network connectivity from the client to UCM is relevant, but a gateway-specific check is not the primary action for client registration issues.
• E. Rebooting the Cisco Unified Border Element (CUBE) Gateway is largely irrelevant to a Jabber client's inability to register with Cisco UCM unless the CUBE has a specific misconfiguration affecting client registration, which is not its primary role.

Concept tested. Cisco Jabber client registration troubleshooting

Reference. https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/jabber/14_0/jab_b_planning-guide-cisco-jabber-14/jab_b_planning-guide-cisco-jabber-14_chapter_010.html

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