The Update Guide To 300-820 Brain Dumps

NEW QUESTION 1
Which statement about the Cisco Webex hybrid service is true?

• A. Expressway Connector is required for an on-premises Exchange server.
• B. Hybrid Message service works only with Jabber cloud deployment.
• C. Directory Connector is required for Azure AD.
• D. Directory Connector must be deployed for OBTP to work with on-premises video devices.

Answer: D

NEW QUESTION 2
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

Answer: AB

NEW QUESTION 3
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?

• A. IPS
• B. SAML authentication
• C. Cisco Unified CM publisher address
• D. SSO

Answer: C

NEW QUESTION 4
Where are voice calls handled in a Cisco Jabber hybrid cloud-based deployment with Cisco Webex Platform Service?

• A. Voice calls use Webex Calling platform for call control and use hybrid media nodes for local conferencing.
• B. Voice calls use local media nodes to keep traffic internal for internal traffic and use Webex Calling for external calls.
• C. Voice call use Cisco Unified Communications Manager for local calls and Webex Calling for external calls.
• D. Voice calls use local Cisco Unified Communications Manager for all calls.

Answer: D

NEW QUESTION 5
Which service is available in a cloud-based deployment using Cisco Webex Messenger?

• A. Presence
• B. Phone services
• C. Voicemail
• D. Call forward services

Answer: A

NEW QUESTION 6

Refer to the exhibit. Which two numbers match the regular expression? (Choose two.)

• A. d20d16d20d22
• B. 2091652010224
• C. 209165200225
• D. d209d165d200d224
• E. 209165200224

Answer: CE

NEW QUESTION 7
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.

Answer: DE

NEW QUESTION 8
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.

Answer: A

NEW QUESTION 9
With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)

• A. From VMN to CUCM SIP endpoints, the source UDP ports from 52500 to 62999 is used for audio traffic.
• B. From VMN to Webex Teams clients, the source UDP port 5004 is used for video traffic.
• C. From Webex cloud to VMN, the source UDP port 9000 is used for audio traffic.
• D. From VMN to video endpoints, the destination UDP port 5004 is used for audio traffic.
• E. From VMN to Webex cloud, the destination UDP port 9000 is used for video traffic.

Answer: AB

NEW QUESTION 10
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.

Answer: A

NEW QUESTION 11
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

Answer: B

NEW QUESTION 12

Refer to the exhibit. An ISDN gateway is registered to Expressway-C with a prefix of 9 and/or it has a neighbor zone specified that routes calls starting with a 9. Which value should be entered into the "Source" field to prevent toll fraud regardless at origin of the call?

• A. Traversal Zone
• B. Any
• C. Neighbor Zone
• D. All

Answer: D

NEW QUESTION 13
Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access deployments?

• A. Unified Communications traversal zone
• B. neighbor zone
• C. DNS zone
• D. traversal zone

Answer: A

NEW QUESTION 14
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

Answer: C

NEW QUESTION 15
Which describes what could done on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?

• A. Application layer gateway could be enabled to bridge the media traffic.
• B. A static NAT route could be added to the firewall to bridge the two networks.
• C. The Expressway-E could be enabled for Dual-NIC capability.
• D. The Expressway-E could be enabled for interworking.

Answer: C

NEW QUESTION 16
Refer to the exhibit. In an environment SIP devices are registered to CUCM and H.323 devices to VCS. What would be required to enable these calls to setup correctly?

• A. Create a presearch transform.
• B. Change the domain of SIP endpoint A to cisco.com.
• C. Disable SIP in the external zone.
• D. Change the interworking mode to On.

Answer: D

NEW QUESTION 17
What is the purpose of a transform in the Expressway server?

• A. A transform has the function as a neighbor zone in the Expresswa
• B. It creates a connection with another server.
• C. A transform changes the audio codec when the call goes through the Expressway.
• D. A transform is used to route calls to a destination.
• E. A transform changes an alias that matches certain criteria into another alias.

Answer: D

NEW QUESTION 18
An organization with a domain name of example.com.
Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)

• A. _sips._tcp.example.com
• B. _sips._udp.example.com
• C. _h323ls._udp.example com
• D. _h323ls._tcp.example.com
• E. _collab-edge._tls.example.com

Answer: AC

NEW QUESTION 19
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

Answer: C

NEW QUESTION 20
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?

• A. _cisco-uds._tcp.<domain>
• B. _cisco-mra._tls.<domain>
• C. _collab-edge._tls.<domain>
• D. _cisco-expwy._tls.<domain>

Answer: A

NEW QUESTION 21
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

Answer: A

NEW QUESTION 22
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