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
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?
- A . Cisco Unified CM is always used for meeting capabilities.
- B . Depending on the media ow, the Webex Meeting Center or local Cisco Unified CM meeting resources are used for meeting capabilities.
- C . Depending on the origin of the user, the Webex Meeting Center or local Cisco Unified Communications Manager meeting resources are used for meeting capabilities.
- D . Cisco Webex Meeting Center is always used for meeting capabilities.
When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verity subject name must be configured on the Expressway-E UC traversal zone?
- A . Webex CUSP Cluster Name
- B . Expressway-E Cluster Name
- C . Cisco Unified Communications Manager Publisher FQDN
- D . Expressway-C Cluster Name
Which protocol and port are used for signaling between on-premises Cisco Webex Video Mesh Nodes and Cloud Media Services?
- A . standard SIP over TCP port 5060
- B . signaling over HTTPS TCP port 443
- C . standard SIP TLS over TCP port 5061
- D . signaling over TCP port 444
An engineer must fix broken SSH tunnels between Expressway-C (192.168.10.5) and Expressway-E (192.168.20.5). The engineer is advised that the packet capture shows the required packets for the SSH tunnels leaving the Expressway-C but not reaching the Expressway-E.
Which firewall configuration must the engineer allow to resolve this issue?
- A . port 2222 from Expressway-E to Expressway-C
- B . port 7001 from Expressway-C to Expressway-E
- C . port 7001 from Expressway-E to Expressway-C
- D . port 2222 from Expressway-C to Expressway-E
An engineer must configure Mobile and Remote Access. One of the requirements is to expect Cisco Jabber users to enter [email protected] as the login userid.
Which DNS record must the engineer modify to start implementing this requirement?
- A . _cuplogin._tcp.cisco.com
- B . _collab-edge._tls.cisco.com
- C . _cisco-uds._tls.cisco.com
- D . _cisco-uds._tcp.cisco.com
Which step is required when configuring cloud and hybrid deployments for Cisco Jabber?
- A . Add the Jabber user to Cisco Unity Connection.
- B . Add the Jabber user to Expressway-E.
- C . Add the Jabber user to Expressway-C.
- D . Add Jabber Users to the Cisco Webex Administration Tool.
Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?
- A . _collab-edge on port 8443
- B . _cisco-uds-edge on port 5061
- C . _collab-edge on port 5061
- D . _cisco-uds on port 8443
What happens to the encrypted signaling traffic of a collaboration device if you place it inside a firewall with private IP addresses and try to make a call over IP without any collaboration infrastructure?
- A . The signaling makes it back to the endpoint because the firewall is an application layer gateway and provides address translation.
- B . Encrypted IP traffic for collaboration devices always is trusted by the firewall.
- C . The signaling does not make it back to the endpoint because the firewall cannot inspect encrypted traffic.
- D . The signaling makes it back to the endpoint because the endpoint sent the private address to the external endpoint.
How is the communication routed in a Hybrid deployment so that people on Cisco Cloud-Based IM are able to communicate with Cisco Jabber users in the on-premises environment?
- A . The Expressway-C enables a connection directly with the Cisco Webex Cloud to enable the hybrid service and allow the two services to communicate.
- B . The Expressway-E located in the DMZ establishes a connection with the Cisco Webex Cloud to enable the hybrid service and allow the two services to communicate.
- C . The Cisco Unified IM and Presence server establishes a connection using the outgoing path through the Cisco Expressways that terminates in the Cisco Webex Cloud to create the hybrid environment that links the two services together.
- D . The Cisco UC server establishes a connection using the outgoing path through the Cisco Expressways that terminates in the Cisco Webex Cloud to create the hybrid environment that links the two services together.
An administrator is configuring DNS to allow Mobile and Remote Access logins for the domain cisco.com.
Where must the _collab-edge_tls.cisco.com DNS SRV record be configured?
- A . in the public DNS server
- B . in DNS SRV settings under Cisco Unified OS Administration in Cisco UCM
- C . in DNS settings in the Expressway-E on the interface that faces the Internet
- D . in DNS settings under Cisco Unified OS Administration in Cisco UCM