300-820 Practice Questions
236 real 300-820 exam questions with expert-verified answers and explanations. Page 1 of 5.
- Question #1Mobile and Remote Access
Which two statements about Mobile and Remote Access certificate are true? (Choose two.)
Mobile and Remote Access (MRA)Certificate ManagementExpresswayJabber Trust - Question #2Mobile and Remote Access
In a Mobile and Remote Access deployment, where must communications be encrypted with TLS?
Mobile and Remote Access (MRA)TLS encryptionCisco Expressway-ECisco Expressway-C - Question #3Initial Expressway Configurations
What is the Cisco-recommended key length in bits for a Cisco Expressway certificate?
ExpresswayCertificatesKey LengthSecurity - Question #4Mobile and Remote Access
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 act...
ICESTUNTURNNAT Traversal - Question #5Cisco Unified Communications Manager with Webex Calling
Where are voice calls handled in a Cisco Jabber hybrid cloud-based deployment with Cisco Webex Platform Service?
Cisco JabberHybrid DeploymentCisco Unified Communications ManagerVoice Call Handling - Question #6Cisco Expressway for Collaboration
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?
SIPH.323ExpresswayProtocol Interworking - Question #7Cisco Expressway for Collaboration
Refer to the exhibit. Which two numbers match the regular expression? (Choose two.)
Regular ExpressionsDial PlanCall RoutingNumber Manipulation - Question #8Cisco Webex Technologies
Which step is required when configuring cloud and hybrid deployments for Cisco Jabber?
Jabber HybridWebex IntegrationUser ProvisioningCloud Collaboration - Question #9Cisco Expressway for Collaboration
Which two licenses are required for the B2B feature to work? (Choose two.)
Expressway LicensingB2B CollaborationTraversal ServerRich Media Sessions - Question #10Initial Expressway Configurations
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?
Expressway TraversalNATExpressway-C ZonePeer Address - Question #11Cisco Expressway for Collaboration
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 shou...
Expressway SecurityToll FraudCall Routing RulesSource Matching - Question #12Mobile and Remote Access
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...
Mobile and Remote Access (MRA)Cisco ExpresswayTraversal ZoneZone Linking - Question #13Cisco Webex Core Components
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 clus...
Video MeshIntra-cluster cascadeWebex MeetingsCUCM Call Routing - Question #14Mobile and Remote Access
Refer to the exhibit. When a Jabber user attempts to connect from outside of the organization, the user enters the login information as "[email protected]" and receives the error "C...
JabberDNS SRVMobile and Remote AccessService Discovery - Question #15Cisco Webex Core Components
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 Direct...
Webex Hybrid ServicesDirectory SynchronizationCisco Directory ConnectorActive Directory Integration - Question #16Cisco Expressway for Collaboration
Which role does Call Policy play when preventing toll fraud on Expressways?
Expressway Call PolicyToll Fraud PreventionCall ControlExpressway Security - Question #17Cisco Webex Core Components
An administrator has been asked to configure Video Mesh signaling traffic to route through a proxy. Which is an available proxy type in the Video Mesh node configuration to support...
Video MeshProxy configurationSignaling trafficNetwork integration - Question #18Cisco Unified Communications Manager with Webex Calling
What is one of the user-related prerequisites for Jabber Team Messaging Mode Installation?
Jabber Team Messaging ModeUser provisioningCisco Unified CMWebex Control Hub - Question #19Mobile and Remote Access
What happens to the encrypted signaling traffic of a collaboration device if you place it inside a firewall with private IP addresses and try to make a call over IP without any col...
FirewallNAT TraversalEncrypted SignalingSIP/RTP - Question #20Mobile and Remote Access
Which entry in the public (external) DNS is valid to configure DNS SRV records for a Cisco Mobile and Remote Access solution?
DNS SRV recordsMobile and Remote AccessCisco ExpresswayCollaboration Edge - Question #21Cisco Expressway for Collaboration
Which statement about scheduling Expressway backups is true?
Expressway backupsBackup schedulingExpressway administration - Question #22Cisco Expressway for Collaboration
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....
ExpresswayTLSCertificatesTraversal Zone - Question #23Cisco Webex Technologies
With QoS enabled, which two statements about the Cisco Webex Video Mesh Node signaling and media traffic are true? (Choose two.)
Webex Video Mesh NodeQoSMedia PortsTraffic Flow - Question #24Mobile and Remote Access
Which configuration does Cisco recommend for the peer address on the Expressway-C secure traversal zone when the Expressway-E has one NIC enabled?
Expressway-CExpressway-ESecure Traversal ZoneMRA Configuration - Question #25Cisco Expressway for Collaboration
Which situation requires TCP port 443 to be open for packets that are sourced from the Internet with a destination in the corporate DMZ?
Cisco Expressway EdgeTCP Port 443DMZAdministrative Access - Question #26Mobile and Remote Access
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) C...
Expressway TroubleshootingMobile and Remote Access (MRA)XMPPConnection Refused - Question #27Cisco Unified Communications Manager with Webex Calling
Refer to the exhibit. While troubleshooting Cisco Jabber login issues, there are some error messages. Why is the Jabber client unable to sign in?
Cisco JabberXMPPTroubleshootingIM and Presence - Question #28Mobile and Remote Access
What it is the purpose of using ICE for Mobile and Remote Access endpoints in the Cisco Collaboration infrastructure?
ICEMobile and Remote AccessMedia path negotiationEndpoint connectivity - Question #29Cisco Expressway for Collaboration
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 i...
ExpresswayExternal Video CommunicationFirewall TraversalCollaboration Security - Question #30Mobile and Remote Access
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?
Expressway-EExpressway-CMobile and Remote Access (MRA)TLS Traversal Zone - Question #31Mobile and Remote Access
When an Expressway-E is configured for static NAT, which Session Description Protocol attribute is modified to reflect the NAT address?
Expressway-ENATSDP c-lineMedia Traversal - Question #32Mobile and Remote Access
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 Expresswa...
Mobile and Remote Access (MRA)Jabber RegistrationExpressway TroubleshootingUser Authentication - Question #33Cisco Expressway for Collaboration
Which two statements about Expressway media traversal are true? (Choose two.)
Expressway ArchitectureMedia TraversalMobile and Remote Access (MRA)Expressway Zones - Question #34Mobile and Remote Access
Which two statements about configuring mobile and remote access on Cisco TelePresence Video Communication Server Expressway are true? (Choose two.)
Mobile and Remote Access (MRA)Cisco Expressway configurationTraversal zonesMedia encryption - Question #35Cisco Expressway for Collaboration
Refer to the exhibit. You have Cisco Expressway using SIP for external calls. SIP Nat/Alg is configured on the edge firewall. The call fails with one way audio. Which problem with...
Cisco ExpresswaySIP TLSNAT/ALGOne-way audio - Question #36Mobile and Remote Access
Which zone is required between Expressway-E and Expressway-C in Mobile and Remote Access deployments?
Expressway-EExpressway-CMobile and Remote AccessUnified Communications Traversal Zone - Question #37Cisco Expressway for Collaboration
Refer to the exhibit. What is the result of a transformation applied to alias 88514?
Alias TransformationSIP URIDial PlanURI Normalization - Question #38Cisco Webex Core Components
Which part of a hybrid cloud-based deployment with Cisco Webex Messenger Service is used for meeting capabilities?
Webex HybridWebex MeetingsMeeting CapabilitiesCisco Webex Architecture - Question #39Mobile and Remote Access
For a Mobile and Remote Access deployment, which server's certificate must include the Unified registration domain as a Subject Alternate Name?
Mobile and Remote Access (MRA)Expressway-ECertificatesSubject Alternate Name (SAN) - Question #40Cisco Webex Technologies
Which step is required when configuring Cisco Webex Hybrid Message Service?
Webex Hybrid ServicesHybrid Message ServiceExpressway-CWebex Cloud Integration - Question #41Initial Expressway Configurations
When configuring a Cisco Expressway solution and need to design the dial plan with various rules for URIs and numbers coming through the device. To do so, it is important that some...
Cisco ExpresswayDial PlanTransform RulesPriority Range - Question #42Cisco Expressway for Collaboration
Which zone is required on a B2B deployment between Expressway-C and Expressway-E?
Expressway Traversal ZoneB2B deploymentExpressway-CExpressway-E - Question #43Cisco Expressway for Collaboration
Which two options should be used to create a secure traversal zone between the Expressway-C and Expressway-E? (Choose two.)
Expressway Traversal ZoneExpressway SecurityCertificatesH.323 Protocol - Question #44Cisco Expressway for Collaboration
Which two statements about Zones on Cisco Expressways are correct? (Choose two.)
Expressway ZonesExpressway Core-EdgeMobile and Remote Access (MRA)Call Admission Control (CAC) - Question #45Cisco Expressway for Collaboration
Which mode should be used when Call Policy is configured on Expressways?
Cisco ExpresswayCall Policy LanguageCPL modesExpressway configuration - Question #46Cisco Webex Core Components
Which service is available in a cloud-based deployment using Cisco Webex Messenger?
Webex MessengerCloud CollaborationPresence ServiceCollaboration Features - Question #47Cisco Expressway for Collaboration
Which describes what could done on the Expressway-E to successfully route calls from Expressway-C on the internal network to the Internet?
Expressway-EDual-NICCall RoutingNetwork Configuration - Question #48Cisco Expressway for Collaboration
When designing the call control on a Cisco Expressway Core, which is the sequence of dial plan functions?
Expressway Dial PlanCall Processing OrderTransformsCPL - Question #49Cisco Webex Technologies
What should be considered when using the Cisco Webex hybrid service?
Cisco Webex Hybrid ServicesExpressway ConnectorHybrid Calendar ServiceOn-premises Exchange - Question #50Cisco Expressway for Collaboration
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...
Cisco ExpresswayProtocol InterworkingH.323SIP