Cisco 300-820 Practice Exams
Last updated on Oct 21,2026- Exam Code: 300-820
- Exam Name: Implementing Cisco Collaboration Cloud and Edge Solutions (CLCEI)
- Certification Provider: Cisco
- Latest update: Oct 21,2026
A MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server.
What should be configured on the Expressway-C so that MRA registered clients reach this server?
- A . The directory photo server FQDN must be added to the Expressway-C certificate
- B . A search rule must be created to route the requests to Cisco UCM
- C . A neighbor zone must be created to the directory photo server
- D . The directory photo server must be added to the HTTP allow list
D
Explanation:
Reference: https://www.cisco.com/c/en/us/support/docs/unified-communications/expressway/118798-technote-cucm-00.html#anc29
A company already has a Cisco Unified Communications Manager for internal audio and video traffic, but it requires video communication with external partners and customers. It is important to ensure security for the deployment and the connectivity.
What must be set up to enable this requirement?
- A . Cisco Unified Border Element and Cisco ASA Firewall
- B . Cisco Unified Border Element and Cisco Firepower Firewall
- C . Cisco Expressway-C and Cisco Expressway-E
- D . Cisco Expressway-C and Cisco Unified Border Element
When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?
- A . transforms, CPL, user policy, search rules
- B . search rules, zones, local zones
- C . DNS zone, local zone, search rules
- D . search rules, transforms
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?
- A . 1024
- B . 2048
- C . 4096
- D . 8192
Refer to the exhibit.
Which description of the transformation is true?
- A . It converts [email protected]:<port> to [email protected]
- B . It changes all patterns that begin with [email protected]:<port> to [email protected]
- C . It changes [email protected]:<port> to [email protected]
- D . It converts [email protected]:<port> to [email protected]
Refer to the exhibit.
Which two numbers match the regular expression? (Choose two.)
- A . d20d16d20d22
- B . 2091652010224
- C . 209165200225
- D . d209d165d200d224
- E . 209165200224
Refer to the exhibit.
If the Webex Teams device cannot connect to Video Mesh Cluster-1 because it is busy, which media node does the Webex Teams device connect to next?
- A . Both Cloud Node US-EAST and US-WEST
- B . Video Mesh Cluster-2
- C . Cloud Node US-EAST
- D . Cloud Node US-WEST
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network.
Which statement is true?
- A . Webex Cloud supports either a DMZ-based Mesh Node for security or an internal-based Mesh Node for media control only.
- B . Installing a Video Mesh Node in the DMZ requires you to open TCP and UDP port 4444 in your internal firewall for full clustering functionality.
- C . Installing a Video Mesh Node in the DMZ requires the external firewall to allow UDP traffic from ANY port to the address of the Video Mesh Nodes via port 5004.
- D . Using internal Video Mesh Node also works due to Mobile and Remote Access setup for Webex Teams clients. A DMZ node is added for extra security.
A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is being trusted by the machine running the Jabber client.
What else can be done to solve this problem?
- A . Create a new CSR with new information on the SAN eld.
- B . Include Cisco Unified Communications Manager registration domain in the Expressway-E certificate as a SAN.
- C . Change the domain name.
- D . Change the FQDN of the Expressway.
An engineer configures a Cisco Collaboration environment to use Mobile and Remote Access for external access for company users. The engineer uses OAuth with refresh on the Cisco UCM SIP lines for extra security and improved user experience. During the setup, Mobile and Remote Access does not work, it is enabled on the Cisco UCM and Cisco Expressways. SIP trunks on ports 5090 and 5091 are configured to avoid conflicts with other SIP trunks between internal Cisco UCM clusters. The traversal zone also uses port 6500. The traversal zone between Expressways shows no errors, and the requests hit Expressway-E from the Internet.
What is the reason that the solution does not work?
- A . Mobile and Remote Access does not support OAuth with refresh with this configuration,
- B . The default port for Mobile and Remote Access is 6001. Therefore, the traversal port must be port 6001 for Mobile and Remote Access to work.
- C . The default port for Mobile and Remote Access is 6500, which creates a conflict with the existing traversal zone port.
- D . The default port for Mobile and Remote Access is 5091, which creates a conflict with the existing SIP trunks.