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
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?
- A . ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
- B . ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
- C . ICE uses FAST updates to optimize the video quality in case of packet loss. This technology is available only from Cisco Unified CM version 11.5 and later.
- D . ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.
A call is sent by Cisco UCM to Expressway with a URI of [email protected].
If (7508`¦)@expc1a.pod8.test.lab.* is the pattern string, what would be the replacement string of the transform in Expressway to re-write the call so that it becomes [email protected]?
- A . [email protected].@
- B . [email protected].*
- C . [email protected]
- D . [email protected].!
Refer to the exhibit.
An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP registrations are failing.
To troubleshoot, SIP logs were collected.
How is this issue resolved?
- A . Change the SIP pro le on the SIP trunk for the Expressway-E to Standard SIP Pro le for TelePresence Endpoint
- B . Change the “Incoming Port” in the SIP Trunk Security Pro le for the Expressway-C to not match SIP line registrations
- C . Enable auto registration for the appropriate DN range on the Cisco UCM servers running the Call Manager service
- D . Write a custom normalization script since the “vcs-interop” normalization script does not allow registrations
Refer to the exhibit.
Which inbound connection should an administrator configure on the outside firewall?
- A . Media: UDP 36000 to 36011
- B . XMPP: TCP 5222
- C . SIP: TCP 5061
- D . HTTPS (tunneled over SSH between C and E): TCP 2222
C
Explanation:
Reference: https://www.cisco.com/c/dam/en/us/td/docs/voice_ip_comm/expressway/cong_guide/X12-5/Cisco-Expressway-IP-Port-Usage-for-Firewall-Traversal-Deployment-Guide-X12-5.pdf
Which two internal SIP endpoints behind a firewall place calls to external devices? (Choose two.)
- A . An Expressway-C communicates with the internal endpoint and forwards the media to and from an Expressway-E.
- B . A Cisco Endpoint is configured with a publicly routable static NAT SIP address to advertise instead of is private IP address.
- C . An Expressway-C communicates directly with the remote party using the ICE protocol
- D . An Expressway-E is used as a VPN server to allow remote SIP edge servers to connect calls E. An Expressway-C rewrites the SIP SDP to advertise its own IP address to the external party.
What is the purpose of a transform in the Expressway server?
- A . A transform has the function as a neighbor zone in the Expressway. It creates a connection with another server.
- B . A transform changes the audio codec when the call goes through the Expressway.
- C . A transform is used to route calls to a destination.
- D . A transform changes an alias that matches certain criteria into another alias.
A Webex administrator is configuring the Webex Control Hub to enable enterprise users to sign into Webex securely by authenticating to the IdP of the organization.
To conform to the SAML specification, to what can the NameID format be set?
- A . urn:oasis:names:tc:SAML:2.0:nameid-format:unspeci ed
- B . urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
- C . urn:oasis:names:tc:SAML:2.0:nameid-format:transient
- D . urn:oasis:names:tc:SAML:1.1:nameid-format:emailAddress
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
- A . Cisco Expressway-E and endpoints outside the enterprise
- B . Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
- C . Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
- D . Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise
When external video endpoints are called via a DNS zone, which dialing method requires DNS to be configured in the Expressway server?
- A . IP dialing
- B . URI dialing
- C . DN dialing
- D . E.164
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.