What Top Quality 300-820 Real Exam Is

NEW QUESTION 1

Refer to the exhibit. Mobile Cisco Jabber cannot register with on-premises Cisco Unified Communications Manager using Mobile and Remote Access. Some logs were captured on Expressway Edge. Which action corrects this problem?

• A. Ensure that the peer address does not match the Common Name on certificate.
• B. Ensure that the _cisco-uds SRV record has been configured.
• C. Ensure that the credential has been entered correctly.
• D. Ensure that the SIP domains are added on Expressway Core.

Answer: C

NEW QUESTION 2
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

Answer: C

NEW QUESTION 3
Refer to the exhibit. While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?

• A. down Cisco Unified Communications Manager server
• B. XMPP bind failures
• C. incorrect login credentials
• D. service discovery issues

Answer: B

NEW QUESTION 4
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 5
An Expressway-E is configured using a single NIC with NAT.
How must the Expressway-C traversal client zone be configured to connect to the Expressway-E?

• A. TLS verify must be enabled.
• B. The zone profile must be set to default.
• C. The peer address must be the Expressway-E NAT address.
• D. The peer address must be the Expressway-E LAN 1 IP address.

Answer: C

NEW QUESTION 6
Refer to the exhibit. What is the result of a transformation applied to alias 88514?

• A. 98851@ccnpcollab.com
• B. 88513@ccnpcollab com
• C. 88514@ccnpcollab.com
• D. 88515@ccnpcollab.com

Answer: A

NEW QUESTION 7
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 8
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 9
Which two statements about Expressway media traversal are true? (Choose two.)

• A. Expressway Control is the traversal server installed in the DMZ.
• B. The Expressway Edge must be put in a firewall DMZ segment.
• C. Cisco Unified Communications Manager zone can be either traversal server or client.
• D. The Unified Communications traversal zone can be used for Mobile and Remote Access.
• E. Both Expressway Edge interfaces can be NATed.

Answer: BD

NEW QUESTION 10
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 11

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 12
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 13
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?

• A. Cisco Expressway-E and endpoints outside the enterprise
• B. Cisco Expressway-C, Cisco Unified Communications Manager, and IM&P
• C. Cisco Expressway-C, Cisco Expressway-E, and Cisco Unified Communications Manager
• D. Cisco Expressway-C, Cisco Expressway-E, and endpoints outside the enterprise

Answer: A

NEW QUESTION 14
Refer to the exhibit. Cisco Unified Communications Manager routes the call via the Webex Meetings route list and route group to the Video Mesh cluster Node#1 in the Video Mesh cluster is hosting the meeting and has reached full capacity, but other nodes in the cluster still have spare capacity.
What happens to the participant's call?

• A. Another node in the cluster is used and an intra-cluster cascade between the two Video Mesh nodes is formed.
• B. The call is queued.
• C. The call fails.
• D. Another node in the cluster is used and an intra-cluster cascade between Webex and the new Video Mesh node is formed.

Answer: D

NEW QUESTION 15
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 16
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 17
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 18
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?

• A. ICE controls the bandwidth usage for Cisco Collaboration endpoints if the endpoints are located outside the company network.
• B. ICE enables Cisco Collaboration endpoints to determine if there is direct connectivity between them.
• C. ICE uses FAST updates to optimize the video quality in case of packet los
• D. This technology is available only from Cisco Unified CM version 11.5 and later.
• E. ICE enablement allows for the Cisco Collaboration endpoint to register through Expressway servers to Cisco Unified Communications Manager behind a firewall.

Answer: B

NEW QUESTION 19
Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?

• A. _collab-edge on port 8443
• B. _cisco-uds-edge on port 5061
• C. _collab-edge on port 5061
• D. _cisco-uds on port 8443

Answer: A

NEW QUESTION 20

Refer to the exhibit. An Expressway-C and Expressway-E are configured for B2B calling and the Expressway-E zone is set to TLS Verify Currently, calls do not reach the Expressway-C. The Traversal Client zone on the Expressway-C for B2B reports the information in the exhibit for the Peer 1 address.
Which action resolves this error?

• A. Configure the Expressway-C Traversal Client zone Peer 1 address with the fully qualified domain name of the Expressway-E.
• B. Configure the Expressway-C Traversal Client zone transport protocol with TCP.
• C. Add a server certificate to the Expressway-C that is signed by a certificate authority.
• D. Add an intermediate certificate to the Expressway-C that is signed by a certificate authority.

Answer: D

NEW QUESTION 21
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.

Answer: D

NEW QUESTION 22
Which mode should be used when Call Policy is configured on Expressways?

• A. extended CPL
• B. local CPL, policy service, and off
• C. on
• D. remote CPL

Answer: C

NEW QUESTION 23
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 24
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?

• A. 1024
• B. 2048
• C. 4096
• D. 8192

Answer: C

NEW QUESTION 25
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 26
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