Free Cisco 300-820 Practice Questions 2026 | Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI)

Which statement about scheduling Expressway backups is true?

A.

It is not supported on the application.

B.

It is allowed from the application CLI of the Expressway only.

C.

It is allowed from the application CLI and GUI of the Expressway.

D.

It is allowed from the application GUI of the Expressway only.

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

Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

A.

_cisco-uds._tcp.<domain>

B.

_cisco-mra._tls.<domain>

C.

_collab-edge._tls.<domain>

D.

_cisco-expwy._tls.<domain>

How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?

A.

add the specific URI in the firewall section of the Expressway and block it

B.

block the call with a call policy rule in the Expressway-E

C.

add a search rule route all calls to the Cisco UCM

D.

configure FAC for the destination alias on the Expressway

Which statement about the Cisco Webex hybrid service is true?

A.

Expressway Connector is required for an on-premises Exchange server.

B.

Hybrid Message service works only with Jabber cloud deployment.

C.

Directory Connector is required for Azure AD.

D.

Directory Connector must be deployed for OBTP to work with on-premises video devices.

Refer to the exhibit.

When a Jabber user attempts to connect from outside of the organization, the user enters
the login information as "user@example.com" and receives the error "Cannot find your
services Automatically". The engineer tries to resolve SRV records used by Jabber.
DNS A record "expressway-e.example.com" points to the Expressway-E IP and
"cucm.example.com" points to the Cisco Unified Communications Manager.
Which change resolves the DNS problem?

A.

Change cisco-uds to point to the Expressway-E FQDN.

B.

Change the collab-edge record to point to 5061.

C.

Remove the cisco-uds SRV record for the external DNS.

D.

Change the priority of the SRV record for cisco-uds.

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.

Refer to the exhibit.

Which inbound connection should an administrator configure on the outside firewall?

A.

Media: UDP 36000 to 36011

B.

HTTPS (tunneled over SSH between C and E): TCP 2222

C.

SIP TCP 5061

D.

XMPP TCP 5222

An administrator has been asked to configure Video Mesh signaling traffic to route through a proxy. Which is an available proxy type in the Video Mesh node configuration to support this deployment model?

A.

Transparent Explicit Proxy

B.

Transparent Inspecting Proxy

C.

Reverse Proxy

D.

Distorting Proxy

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.