Cisco 300-820 Practice Exams
Last updated on Oct 22,2026- Exam Code: 300-820
- Exam Name: Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI)
- Certification Provider: Cisco
- Latest update: Oct 22,2026
The Cisco Webex Hybrid Message service is deployed geographically for separate Cisco Unified IM and Presence clusters.
What must be configured in the Cisco Webex Control Hub to achieve this deployment?
- A . geo-locations
- B . distributed DNS
- C . verified domains
- D . resource groups
D
Explanation:
Reference: https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cloudCollaboration/spark/hybridservices/messageservice/cmgt_b_spark-hybrid-message-deployment-guide/cmgt_b_spark-hybrid-message-deployment-guide_chapter_00.html
How do the Cisco Expressway-C and Expressway-E servers transmit media to each other?
- A . RTP and RTCP are multiplexed for all internal and external video endpoints across the traversal link using UDP.
- B . When the Expressway-C receives RTP and RTCP media, it establishes a new UDP socket with the Expressway-E.
- C . RTP and RTCP are multiplexed for all internal and external video endpoints across the traversal link using TLS.
- D . When the Expressway-E receives RTP and RTCP media, it establishes a new UDP socket with the Expressway-C.
An organization wants to enable a Cisco Webex connector to synchronize all employees automatically with Cisco Webex instead of using a manual list.
Where is the Webex Hybrid Directory Service configured?
- A . Install Cisco Directory Connector on a Microsoft Windows Domain server and configure the software and Webex Control Hub.
- B . Enable the directory service in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
- C . Enable the directory service on Cisco Expressway Edge for Office 365 or Cisco Expressway Core for internal Active Directory and add the service in Webex Control Hub.
- D . Install the Cisco Express Connector and configure the device in Cisco Unified Communications Manager under Cisco Unified Serviceability and add the service in Webex Control Hub.
How are Cisco Webex Video Mesh deployments supported?
- A . Video Mesh Dual NIC are supported in demilitarized deployments.
- B . Mixed Single NIC and Dual NIC are supported in the same data center deployments.
- C . Clustering Video Mesh Nodes over the WAN are supported if Round Trip Time is low.
- D . IPv6 and IPv4 deployments are supported for Video Mesh clusters.
Which two types of information does Cisco Expressway back up? (Choose two.)
- A . call records
- B . log les
- C . IP addresses
- D . current call states
- E . security certificates
DE
Explanation:
Reference: https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/cong_guide/X8-10/Mobile-Remote-Access-via-Expressway-Deployment-Guide-X8-10.pdf
An engineer learns from an end user that calls from outside the company are not being received. Calls are being made to other businesses outside of the company on video using URL addresses. The change management log shows no changes in the configuration of the collaboration solutions. The engineer examines the endpoint, which seems to be registered to the Cisco UCM, and the SIP trunk between the Cisco UCM and sees that the Expressway is also up. In addition, the traversal link shows no errors between the Expressways.
Which action must the engineer take to troubleshoot this issue?
- A . On the Cisco UCM, run the Real-Time Monitoring Tool to see if any incoming calls fail.
- B . On the Expressway-E, run diagnostic logging under maintenance to see if any requests reach the system.
- C . On the Expressway-E, check the NTP settings to ensure that TLS will be able to terminate. If the clock is out of sync, incoming calls from other working systems would work bur not outgoing calls from the company.
- D . On the Expressway-C, run a network log under administrative tools to see if any requests reach the system.
Which type of interface is required when the Cisco Expressway-E is located in a DMZ between two separate firewalls on separate network segments?
- A . dual network interface
- B . application programming interface
- C . command line interface
- D . single network interface
Refer to the exhibit.
Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge.
Which action corrects this problem?
- A . Ensure that the peer address does not match the Common Name on certificate.
- B . Ensure that the _cisco-uds SRV record has been configured.
- C . Ensure that the credential has been entered correctly.
- D . Ensure that the SIP domains are added on Expressway Core.
Refer to the exhibit.
When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
- A . 13358 is replaced by 135, and then is sent to the local zone.
- B . 13358 is replaced by 135 and remains in the same zone.
- C . 13358 is replaced by 135, and then is sent to the traversal zone.
- D . 13358 is sent directly to the traversal zone.
What is a bene t 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.