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
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)
- A . _sips._tcp.example.com
- B . _sips._udp.example.com
- C . _h323ls._udp.example com
- D . _h323ls._tcp.example.com
- E . _collab-edge._tls.example.com
A Webex engineer is configuring SSO in Control Hub with Active Directory Federation Services. The engineer wants to authenticate users for all the applications that they are given rights to. The engineer also wants to eliminate further prompts when users switch applications during a particular session.
Which action tells ADFS the elds to map to Webex to identify a user?
- A . Send LDAP attributes as claims.
- B . Create claim rules for Webex authentication
- C . Add a relying party trust to the ADFS.
- D . Map the E-mail-addresses LDAP attribute to the uid outgoing claim type.
Which role does Call Policy play when preventing toll fraud on Expressways?
- A . It controls which calls are allowed, which calls are rejected, and which calls are redirected to a different destination.
- B . It changes the calling and called number on a call.
- C . It changes the audio protocol used by a call through Expressways.
- D . It changes the audio codec used in a call through Expressways.
An administrator is enabling Mobile and Remote Access login for the Cisco UCM registration domain cisco.com. Phones are registered with a Cisco UCM phone security pro le name of securephone.cisco.com.
Which two subject alternative names must be configured? (Choose two.)
- A . Securephone.cisco.com on the CallManager certificate
- B . cisco.com on the Expressway-C certificate
- C . Securephone.cisco.com on the Expressway-E certificate
- D . cisco.com on the Expressway-E certificate
- E . Securephone.cisco.com on the Expressway-C certificate
An engineer reviews the configuration of a pair of Expressway servers for a company with the domain example.com. The company allows toll fraud calls to reach the Cisco UCM only when it expects externally registered devices to call internal 5-digit extensions. The search history shows that the fraudulent calls have a destination URI of 8 or more digits and several domains.
What must the engineer configure to prevent all toll fraud calls from going past the Expressway-E to the internal network?
- A . search rules to only route calls with a destination URI of 5 to 8 digits long on the Expressway-E
- B . CPL that blocks calls with a destination domain other than example.com on the Expressway-C.
- C . search rules to only route calls with a destination domain of example.com on the Expressway-E
- D . CPL to block calls with a destination URI with 8 or more digits on the Expressway-E
Within which cache timeline do the Webex App endpoints perform a STUN test to calculate round-trip delay time to available media node clusters?
- A . 1 hour
- B . 2 hours
- C . 4 hours
- D . 6 hours
Refer to the exhibit.
In an environment SIP devices are registered to CUCM and H.323 devices to VCS.
What would be required to enable these calls to setup correctly?
- A . Create a presearch transform.
- B . Change the domain of SIP endpoint A to cisco.com.
- C . Disable SIP in the external zone.
- D . Change the interworking mode to On.
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?
- A . IPS
- B . SAML authentication
- C . Cisco Unified CM publisher address
- D . SSO
A company has enabled ICE to optimize call flows and improve video quality between their Cisco Collaboration endpoints internally and externally.
For which reason would you see activity on the TURN server when a call is established between two external endpoints?
- A . The video call is using encryption, which is not supported by ICE with CUCM 12.5
- B . ICE cannot reduce the packet loss on the link
- C . A STUN cannot punch holes in the firewall
- D . The video call is using 4K resolution, which is not supported by ICE with CUCM 12.5
A company is implementing Cisco Webex but has existing legacy Cisco video endpoint registered on-premises. The administrator of Webex wants the SIP address of these rooms to appear in the directory listing on Webex registered endpoints and in the Webex App.
How can this be configured?
- A . Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint.
- B . Using the Directory Connector, room resources with ex licenses only can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field.
- C . Using the Directory Connector, room resources with ex licenses only can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint.
- D . Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field.