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300-820 Exam Dumps - Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI)

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Question # 17

When determining why Mobile and Remote Access to Cisco TelePresence equipment does not work anymore for an organization. There are several administrators and configuration changes could have happened without anyone knowing. Internal communication seems to be working, but no external system can register or call anywhere. Gathering symptoms, you also discover that no internal systems can call out either.

What is TraversalZone missing that causes this issue?

A.

link to the DefaultZone

B.

pipe to the DefaultZone

C.

SIP trunk to the DefaultZone

D.

route pattern to the DefaultZone

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Question # 18

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

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Question # 19

Refer to the exhibit. A Cisco Webex device on an enterprise network has identified the given STUN round-trip delays in milliseconds to the enterprise Video Mesh clusters and two Webex Cloud Media clusters during the call setup. Which correct sequence of clusters is the client connecting to?

A.

US West Coast WCMC. If US West Cost WCMC is full, then Europe WCMC because clients select clusters in the order of SRT delays.

B.

DC Europe. If DC Europe is full, DC APAC because clients select on-premises clusters in the order of SRT delays before using cloud resources.

C.

DC Europe. If DC Europe is full, US West Coast WCMC because clients select resources in the order of SRT delays but ignore SRTs greater than 250 ms.

D.

US West Coast WCMC. Clients continuously monitor DC US cluster and reconnect when DC US are available to save bandwidth.

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Question # 20

What is the first step to restoring an Expressway cluster from a backup?

A.

use the backup that is specific to each Expressway peer in the cluster

B.

upgrade each Expressway peer to the latest Expressway software

C remove each Expressway peer from the cluster

C.

add all the Expressway peers to the cluster

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Question # 21

Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrator is deploying mobile and remote access and sees an issue with the UC traversal zone. The zone is showing “TLS negotiation failure”. What is causing this issue?

A.

The Expressway-E certificate includes the Expressway-C FQDN as a SAN entry

B.

The Expressway-C is missing the FQDN of Cisco UCM in the Common Name of its certificate

C.

In the UC Traversal Zone on the Expressway-C, the peer address is set to the IP of the Expressway-E,

which is not a SAN entry in the Expressway-E certificate

D.

The Expressway-E does not have the FQDN of Cisco UCM listed as a SAN in its certificate

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Question # 22

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

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Question # 23

A network engineer is configuring Mobile and Remote Access for the environment and must add the Certificate Authority into the Expressways. How does the engineer perform this action?

A.

Go to Maintenance > Trusted CA certificate > Security and upload the trusted Certificate Authority certificates.

B.

Go to Maintenance > Security > Trusted CA certificate and upload the trusted Certificate Authority certificates.

C.

Go to Maintenance > Tools > Security > Certificates > Trusted CA certificate and upload the trusted Certificate Authority certificates.

D.

Go to Maintenance > Tools > Security > Trusted CA certificate and upload the trusted Certificate Authority certificates.

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Question # 24

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.

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