Free Cisco 300-820 Exam Dumps Questions & Answers

Which situation requires TCP port 443 to be open for packets that are sourced from the Internet with a destination in the corporate DMZ?

• A.  when you require administrative access to the Cisco Expressway Edge from the Internet
• B.  when you want to enable calls to web applications by using HTTP
• C.  when video endpoints that reside on the Internet require administrative access to the Cisco Expressway Edge
• D.  when you require encrypted calls to endpoints on your corporate LAN

Refer to the exhibit. A collaboration engineer is configuring Cisco Expressway for B2B calling.
The engineer must allow inbound calls to be routed to Cisco UCM. The traffic must be unencrypted between the Expressway-C and the Cisco UCM cluster. Which configuration correctly implements the zone?

• A. 
• B. 
• C. 
• D. 

An organization is deploying Webex services and wants to enable calendar integration so users can schedule and join Webex meetings directly from their existing email platforms. The company uses Microsoft Office 365 and Google Workspace across different departments. The admin must configure Webex Control Hub to support calendar access, meeting scheduling, and one-button- to-push for users in both environments. Which deployment model must the admin configure in Webex Control Hub to support this mixed calendar environment?

• A.  Configure separate calendar connectors in Expressway for each region.
• B.  Configure two cloud calendar integrations in Control Hub, one for Office 365 and one for Google Workspace.
• C.  Configure directory sync only, since calendar entries are automatically federated.
• D.  Configure local hybrid connectors per AD domain and sync them to Webex.

What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?

• A.  ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
• B.  ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
• C.  ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.
• D.  ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.

What is a benefit of Cisco Webex Messenger Cloud deployment?

• A.  Cloud deployment is more secure than an on-premises deployment.
• B.  There is no additional cost to use a cloud deployment.
• C.  Cloud deployment allows interoperability between Cisco Jabber and Webex Teams users.
• D.  Cloud deployment is faster than using an on-premises deployment.