Free 300-820 Sample Questions — Implementing Cisco Collaboration Cloud and Edge Solutions

A company is implementing Cisco Webex but has existing legacy Cisco video endpoint registered on-premises. The administrator of Webex wants the SIP address of these rooms to appear in the directory listing on Webex registered endpoints and in the Webex App. How can this be configured?

• A. Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint
• B. Using the Directory Connector, room resources with flex licenses only can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field
• C. Using the Directory Connector, room resources with flex licenses only can be synchronized with Webex to make the SIP address appear in the phonebook of the Webex App or the endpoint
• D. Using the Directory Connector, room resources without Webex licenses can be synchronized with Webex to make the room appear in the phonebook of the Webex App or the endpoint. SIP address is then entered from Control Hub because it will not match the field

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

An administrator has been tasked to bulk entitle 200 existing users and ensure all future users are automatically configured for the Webex Hybrid Calendar Service. Which two options should be used to configure these users? (Choose two.)

• A. Export a CSV list of users in the Cisco Webex Control Hub, set the Hybrid Calendar Service to TRUE for users to be enabled, then import the file back to Manage Users menu in the Cisco Webex Control Hub
• B. Set up an Auto-Assign template that enables Hybrid Calendar
• C. Select the Hybrid Services settings card in the Cisco Webex Control Hub and import a User Status report that contains only users to be enabled
• D. On the Users tab in the Cisco Webex Control Hub, check the box next to each user who should be enabled, then click the toggle for the Hybrid Calendar service to turn it on
• E. From Cisco Webex Control Hub, verify the domain that your Hybrid Calendar users will use, which automatically activates them for the service

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

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

How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?

• A. block the call with a call policy rule in the Expressway-E
• B. add the specific URI in the firewall section of the Expressway and block it
• C. configure FAC for the destination alias on the Expressway
• D. add a search rule route all calls to the Cisco UCM

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

After Mobile and Remote Access is deployed with automatic service discovery, end users encounter the error “Cannot communicate with the server” when they attempt to log in to Cisco Jabber 14.0 using the company email address from within the company network. Which action must an administrator take to resolve this challenge?

• A. Create _collab-edge._tcp DNS SRV record in the internal DNS
• B. Create _cisco-uds._tcp DNS SRV record in the internal DNS server
• C. Create _collab-edge._tls DNS SRV record in the public DNS
• D. Create _cisco-uds._tcp DNS SRV record in the public DNS server

What is a benefit of Cisco Webex Messenger Cloud deployment?

• A. Cloud deployment is more secure than an on-premises deployment
• B. There is no additional cost to use a cloud deployment
• C. Cloud deployment allows interoperability between Cisco Jabber and Webex Teams users
• D. Cloud deployment is faster than using an on-premises deployment

A new set of Expressway-C and Expressway-E is deployed and was configured for Mobile and Remote Access with basic settings. How must the engineer edit the inbound allow list rule?

• A. Go to Configuration > Unified Communications > HTTP allow list > Editable inbound rules to view
• B. Go to Configuration > MRA > HTTP allow rules > Editable inbound rules to view, create, modify, or delete HTTP allow list rules
• C. Go to Configuration > MRA > Editable Inbound rules to view, create, modify, or delete HTTP allow list rules
• D. Go to Configuration > Unified Communications > MRA > HTTP allow list > Editable inbound rules to view, create, modify, or delete HTTP allow list rules

When the network requirements are configured for a new Video Mesh deployment, which firewall ports are required so that Video Mesh cascade signaling succeeds?

• A. TCP 443 and 444
• B. TCP 443 and 8443
• C. UDP 5004 and 5005
• D. UDP 33432 through 33433

What is the last step for domain management in Cisco Webex Control Hub if an engineer adds users already signed in with the company domain?

• A. Publish a domain
• B. Add a domain
• C. Verify a domain
• D. Claim a domain

In a larger Cisco Collaboration deployment, a user requires the advanced file transfer function in Cisco Jabber while the client is using Mobile and Remote Access. The deployment has multiple Expressway clusters and internal Cisco UCM clusters. Which configuration must be applied on Cisco Expressway-C for this function to be available?

• A. The HTTP Allow List must be manual or use Automatic inbound rules updated to include all Cisco IM and Presence servers
• B. The HTTPS Allow List must be manual or use Automatic inbound rules updated to include all Cisco IM and Presence servers
• C. The HTTP Allow List must use Automatic update rules to include all Cisco UCM servers
• D. The HTTP Allow List must use Automatic update rules to include all Cisco IM and Presence servers

Which technique can be used to have media flow directly between two endpoints that have a NAT between them?

• A. The endpoints can use a Cisco router API to disable NAT temporarily
• B. Cisco Mobile and Remote Access allows for media traffic directly between two internal endpoints
• C. Cisco access protocol can make a direct path between endpoints on an internal network
• D. STUN makes UDP connections through NAT devices

What should an engineer use to create users for a Cisco Jabber Cloud Deployment?

• A. Cisco Webex Administration Tool
• B. Cisco UCM
• C. Cisco Webex Directory Connector
• D. Cisco Unified IM and Presence Server

An administrator made changes to a directory connector for Webex AD synchronization. The number of users synchronized is quite large and the change should affect only a limited number of users. How can the administrator check the result before executing the synchronization?

• A. Initiate an incremental synchronization from the Director Connector app on the on-premises Windows server because it will ask to save the changes
• B. Initiate a dry run of an incremental synchronization from the Director Connector app on the on-premises Windows server
• C. Initiate a dry run of an incremental synchronization from the Director Connector in Control Hub
• D. Initiate an incremental synchronization from the Director Connector in Control Hub because it will ask to save changes

When deploying an Expressway Core and Expressway Edge cluster for mobile and remote access, which TLS verity subject name must be configured on the Expressway-E UC traversal zone?

• A. Webex CUSP Cluster Name
• B. Expressway-E Cluster Name
• C. Cisco Unified Communications Manager Publisher FQDN
• D. Expressway-C Cluster Name

What is a description of an Interactive Connectivity Establishment?

• A. It is used by B2BUA to keep the firewall ports opened for inbound/outbound calls
• B. It allows Mobile and Remote Access endpoints to connect video calls signaling peer-to-peer
• C. It allows calling external endpoints with reduced overhead under VPN connections
• D. It is used to find the best media path between network elements in traversal calls

Which step is required when configuring Cisco Webex Hybrid Message Service?

• A. Register Expressway-C Connector Hosts to the Cisco Webex Cloud
• B. Register Expressway-C to Cisco Unified Communications Manager
• C. Add Expressway-C and Cisco United CM to the Cisco Webex Cloud
• D. Add Cisco Unity Connection to Expressway-E

Jabber cannot log in via Mobile and Remote Access. You inspect Expressway-C logs and see this error message: XCP_JABBERD Detail="Unable to connect to host '%IP%', port 7400:(111) Connection refused" Which is the cause of this issue?

• A. Rich Media Session licenses are not activated on Expressway-E
• B. Expressway-E is listening on the wrong IP interface
• C. The destination port for Expressway-E is set to 7400 instead of 8443 on the Expressway-C
• D. The XCP Service is not activated on Expressway-E