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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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An engineer wants to configure a zone on the Expressway-E to receive communications from the Expressway-C in order to allow inbound and outbound calls. How is the peer address configured on the Expressway-C when Expressway-E has only one NIC enabled and is using static NAT mode?

A.

Expressway-E FQDN

B.

Cisco UCM FQDN

C.

Expressway-E DHCP

D.

Cisco UCM DHCP

An engineer must configure the zone to connect to an Expressway-E using Single NIC with NAT. The internal IP address is 192.168.10.63, and the NAT address is 203.0.113.5. What must the engineer configure on the Expressway-C to meet this requirement?

A.

traversal zone with the peer address 192.168.10.63

B.

neighbor zone with the peer address 192.168.10.63

C.

traversal zone with the peer address of 203.0.113.5

D.

neighbor zone with the peer address of 203.0.113.5

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.

Refer to the exhibit. When users sign in to Cisco Jabber through Mobile and Remote Access, they cannot see their own photo or the photo of their contacts next to each name. Which action must be taken in Cisco Expressway-C to resolve the issue?

A.

Add an HTTP allow list for the Instant Message and Presence server.

B.

Add an allow call policy rule from the Cisco UCM traversal zone.

C.

Upload the missing Instant Messaging and Presence server certificate to fix the connection to its server.

D.

Add an HTTP allow list for the web server that contains the photos.

Which connection does the traversal zone configuration define?

A.

Expressway-E and Collaboration Endpoints

B.

Cisco UC and Cisco Unified Presence Server

C.

Cisco Expressway-C and Cisco Expressway-E platforms

D.

Cisco UCS E-Series and Cisco UCM

Which two scenarios need a proper DNS configuration on Expressway servers? (Choose two.)

A.

Expressway servers verify the common name attribute in server certificates.

B.

Expressway servers route calls based on SIP URI.

C.

Admins avoid IP address configuration for neighbor zone peers.

D.

Expressway servers use NTP peer authentication for secure time updates.

E.

Admins download software updates from the Cisco website via WebUI.

Cisco Collaboration endpoints are exchanging encrypted signaling messages.

What is one major complication in implementing NAT ALG for voice and video devices?

A.

Internal endpoints cannot use addresses from the private address space.

B.

The NAT ALG cannot inspect the contents of encrypted signaling messages.

C.

NAT ALG introduces jitter in the voice path.

D.

Source addresses cannot provide the destination addresses that remote endpoints should use for return packets.

When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?

A.

transforms, CPL, user policy, search rules

B.

search rules, zones, local zones

C.

DNS zone, local zone, search rules

D.

search rules, transforms

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 fields to map to Webex to identify a user?

A.

Send LDAP attributes as claims.

B.

Create claim rules for Webex authentication

C.

Add a relving party trust to the ADFS.

D.

Map the E-mail-addresses LDAP attribute to the uid outgoing claim type.

Which set of actions configures ACME certificates on Expressways?

A.

Configure ACME Certificate settings on your Expressway-E, and change the ACME automated scheduler field to ON.

B.

Configure ACME Certificate settings on your Expressway-C, and change the ACME automated scheduler field to OFF.

C.

Configure ACME Certificate settings on your Expressway-C, and change the ACME automated scheduler field to ON.

D.

Configure ACME Certificate settings on your Expressway-E, disable the Expressway cluster, and change the ACME automated scheduler field to OFF.

Refer to the exhibit. The neighbor zone to Cisco UCM fails to come up when TLS verify mode is enabled on the Expressway-C for B2B traffic. Which Issue correctly describes the cause of the error?

A.

The certificate has a key length of 8192 bits.

B.

TLS verify mode is enabled on the neighbor zone.

C.

Subject Alternative Name fields are longer than 999 characters.

D.

The neighbor system FQDN is missing from Subject Alternative Name attributes of the certificate.

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 profile on the SIP trunk for the Expressway-E to Standard SIP Profile for TelePresence Endpoint

B.

Change the “Incoming Port” in the SIP Trunk Security Profile for the Expressway-C to not match SIP line registrations

C.

Enable autoregistration for the appropriate DN range on the Cisco UCM servers running the CallManager service

D.

Write a custom normalization script since the “vcs-interop” normalization script does not allow registrations

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.

What is the name of the Webex core service that delivers group messaging, one-to-one messaging, presence, and file sharing?

A.

Cisco Webex Messaging

B.

Cisco Webex App

C.

Cisco Webex ONE

D.

Cisco Jabber Online

A collaboration engineer is configuring Cisco Webex Edge for video conferencing devices to provide support for Cisco Webex Control Hub configuration management. Which configuration control mode must be set on Cisco UCM for Control Hub to manage the on-premises device configuration?

A.

Webex Edge only

B.

endpoint only

C.

Cisco UCM and endpoint

D.

Cisco UCM only

What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?

A.

1024

B.

2048

C.

4096

D.

8192

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

A.

Traversal Server

B.

TURN Relays

C.

Rich Media Sessions

D.

Advanced Networking

E.

Device Provisioning

What are the steps to access the Service Setup Wizard during the first setup of the Expressway server to license the server?

A.

Factory reset the Expressway server to pass from Smart Licensing to PAK-based licensing.

B.

From the GUI of the Expressway server, go to Status> Overview> Run service setup.

C.

Factory reset the Expressway server to pass from Expressway-C to Expressway-E.

D.

From the GUI of the Expressway server, go to Maintenance> Option keys> First Setup Wizard.

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 flow, 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.

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.

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