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Free Cisco 300-820 Practice Exam with Questions & Answers | Set: 3

Questions 21

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?

Options:
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.

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Questions 22

An engineer configures a Cisco Collaboration environment to use Mobile and Remote Access for external access for company users. The engineer uses OAuth with refresh on the Cisco UCM SIP lines for extra security and improved user experience. During the setup, Mobile and Remote Access does not work, it is enabled on the Cisco UCM and Cisco Expressways. SIP trunks on ports 5090 and 5091 are configured to avoid conflicts with other SIP trunks between internal Cisco UCM clusters. The traversal zone also uses port 6500. The traversal zone between Expressways shows no errors, and the requests hit Expressway-E from the Internet. What is the reason that the solution does not work?

Options:
A.

Mobile and Remote Access does not support OAuth with refresh with this configuration.

B.

The default port for Mobile and Remote Access is 6001. Therefore, the traversal port must be port 6001 for Mobile and Remote Access to work.

C.

The default port for Mobile and Remote Access is 6500, which creates a conflict with the existing traversal zone port.

D.

The default port for Mobile and Remote Access is 5091, which creates a conflict with the existing SIP trunks.

Questions 23

Refer to the exhibit.

300-820 Question 23

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?

Options:
A.

Both Cloud Node US-EAST and US-WEST

B.

Video Mesh Cluster-2

C.

Cloud Node US-EAST

D.

Cloud Node US-WEST

Questions 24

Which connection does the traversal zone configuration define?

Options:
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

Questions 25

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?

Options:
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

Questions 26

Which step is taken when configuring a Cisco Expressway solution?

Options:
A.

Configure the Expressway-E by using a non-traversal server zone.

B.

Enable static NAT on the Expressway-E only.

C.

Disable H.323 mode on the Expressway-E.

D.

Enable H.323 H.460.19 demultiplexing mode on the Expressway-C.

Questions 27

Within which cache timeline do the Webex App endpoints perform a STUN test to calculate round-trip delay time to available media node clusters?

Options:
A.

1 hour

B.

2 hours

C.

4 hours

D.

6 hours

Questions 28

What is the purpose of a transform in the Expressway server?

Options:
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.

Questions 29

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?

Options:
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

Questions 30

300-820 Question 30

Refer to the exhibit. An administrator set up a B2B interop with a business partner running a Microsoft Lync environment and can successfully make outbound video calls to Jane.doe@ciscovideo.com. Inbound calls to paul.smith@ciscovoice.com, however, are failing. A quick SRV search returns the records in the exhibit. Which record must be modified to resolve this challenge?

Options:
A.

_h323ls._udp.ciscovoice.com

B.

_sipfederationtcp._tcp.ciscovoice.com

C.

_sips._tcp.ciscovoice.com

D.

_collab-edge._tls.ciscovoice.com

Exam Code: 300-820
Certification Provider: Cisco
Exam Name: Implementing Cisco Collaboration Cloud and Edge Solutions (300-820 CLCEI)
Last Update: Jul 11, 2025
Questions: 207