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300-820 Cisco Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI) Free Practice Exam Questions (2025 Updated)

Prepare effectively for your Cisco 300-820 Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI) certification with our extensive collection of free, high-quality practice questions. Each question is designed to mirror the actual exam format and objectives, complete with comprehensive answers and detailed explanations. Our materials are regularly updated for 2025, ensuring you have the most current resources to build confidence and succeed on your first attempt.

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Cisco Collaboration deployment has video endpoints that can do B2B calls over the internet, but they also can make audio calls through a gateway. This ability means that someone from the internet can make fraud calls through the system. Which action must an engineer take to set up the search rules for calls that are being headed to the PSTN gateway?

A.

Ensure that only requests that are authenticated are allowed to make a PSTN call.

B.

Avoid using any wild card in the source settings in the search rules.

C.

Add registered devices only in the search rule for the PSTN gateway.

D.

Add registered devices only in the zone for the PSTN gateway.

What are two reasons why port 8443 is unreachable from the Internet to the Expressway-E? (Choose two.)

A.

The MRA license is missing on the Expressway-E.

B.

The Unified Communications zone is down.

C.

Transform is not configured on Expressway-E.

D.

The SRV record for _cisco-uds is misconfigured.

E.

The firewall is blocking the port.

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 ofexample.com on the Expressway-E

D.

CPL to block calls with a destination URI with 8 or more digits on the Expressway-E

A company is installing Cisco Collaboration infrastructure and one of the requirements is that they must be able to communicate with many external parties that are using H.323 and SIP. Internally they want to register the endpoints only on SIP.

Which functionality would describe the feature that needs to be enabled and where to achieve this?

A.

Interworking in Expressway-C

B.

Transcoding in Cisco Unified Communications Manager

C.

Transcoding in Expressway-C

D.

Interworking in Cisco Unified Communications Manager

Which two statements about Mobile and Remote Access certificate are true? (Choose two.)

A.

Expressway Core can use private CA signed certificate.

B.

You must upload the root certificates in the phone trust store.

C.

Expressway must generate certificate signing request.

D.

Expressway Edge must use public CA signed certificate.

E.

The Jabber client can work with public or private CA signed certificate.

When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?

A.

SDP b-line

B.

SIP record route

C.

SDP c-line

D.

SDP m-line

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

Which two licenses are required for the Expressway B2B feature to work? (Choose two)

A.

Traversal Server

B.

Advanced Networking

C.

Device Provisioning

D.

Rich Media Sessions

E.

TURN Relays

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.

Refer to the exhibit. An engineer is configuring Cisco Expressway-C to discover Cisco UCM by using an IP address and a TCP connection. After the configuration is saved, errors occur.

Which two changes must be made to resolve the errors? (Choose two.)

A.

Configure an application user with Cisco Computer Telephony Integration-enabled privileges in Cisco UCM.

B.

Configure an application user with Administrative XML privileges in Cisco UCM.

C.

Upload a valid Cisco Tomcat certificate from the Cisco UCM to Expressway-C.

D.

Set TLS verify mode to Off.

E.

Configure an HTTP allow list that contains the Cisco UCM

Which two items are configured when deploying a B2B collaboration solution? (Choose two.)

A.

SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-C

B.

search rules in Cisco Expressway-E

C.

SIP trunk between Cisco Unified Communications Manager and Cisco Expressway-E

D.

traversal client on a Cisco Expressway-E

E.

DNS zone on a Cisco Expressway-C

What should an engineer use to create users for a Cisco Jabber Cloud Deployment?

A.

Cisco Webex Administration Tool

B.

Cisco UCM

C.

Cisco Webex Directory Connector

D.

Cisco Unified IM and Presence Server

What is the default DSCP value for video traffic that is routed through an Expressway server?

A.

36

B.

24

C.

0

D.

24

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

An organization has a domain name of example.com. Which two SRV records are valid for a SIP and H 323 communication? (Choose two)

A.

_collab-edge._tls.example.com

B.

_sips_tcp.example.com

C.

_h323ls_tcp.example.com

D.

_h323ls._udp.example.com

E.

_sips._udp.example.com

What is the benefit of configuring ICE, TURN and STUN in a Cisco Unified Collaboration environment?

A.

The ICE protocol enables the use of MRA for Cisco endpoints to register behind the firewall.

B.

The endpoints use fewer ports to minimize the port range and allows for multiple connections in a high-density deployment.

C.

It can traverse firewalls without opening incoming ports.

D.

The endpoints discover paths to optimize media flow and allows for peer-to-peer media traffic in some cases.

Which interworking option must be used on the Expressway for it to act as a SIP/H.323 gateway when no endpoint is registered?

A.

enabled

B.

registered only

C.

off

D.

on

Which step is required when configuring Cisco Webex Hybrid Message Service?

A.

Add Expressway-C and Cisco UCM to the Cisco Webex Cloud.

B.

Register Expressway-C Connector Hosts to the Cisco Webex Cloud.

C.

Add Cisco Unity Connection to Expressway-E.

D.

Register Expressway-C to Cisco UCM.

An administrator must configure the DNS SRV records for Mobile and Remote Access for a company with the domain example.com, the Expressway-E FQDN is ExpE.example.com, and the Expressway-C FQDN is Exp-C.example.com. What must the administrator configure to allow external clients to discover the Expressway-E server?

A.

SRV record _collab-edge._tls.example.com that resolves to ExpE.example.com on port 8443

B.

SRV record _cisco-uds._tcp.example.com that resolves to ExpE.example.com on port 5061

C.

SRV record _cisco-uds._tcp.example.com that resolves to ExpC.example.com on port 8443

D.

SRV record _collab-edge._tls.example.com that resolves ta ExpE.example.com on port 5061

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

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