300-820 Practice Questions
236 real 300-820 exam questions with expert-verified answers and explanations. Page 2 of 5.
- Question #51Mobile and Remote Access
Which configuration is required when implementing Mobile and Remote Access on Cisco Expressway?
Mobile and Remote Access (MRA)Cisco ExpresswayCisco Unified CMPublisher address - Question #52Mobile and Remote Access
A Jabber user is being prompted to trust the Expressway-E certificate when using Mobile and Remote Access. The administrator has validated that the Expressway-E certificate is bein...
Mobile and Remote Access (MRA)Expressway-EJabberCertificate Trust - Question #53Cisco Expressway for Collaboration
Which two items are configured when deploying a B2B collaboration solution? (Choose two.)
Cisco ExpresswayB2B CollaborationSIP TrunksExpressway Configuration - Question #54Cisco Webex Core Components
Which two statements about Cisco Webex Video Mesh Nodes are true? (Choose two.)
Webex Video Mesh Nodes (VMN)VMN cluster selectionSTUN delayCUCM-VMN integration - Question #55Mobile and Remote Access
While troubleshooting a connectivity issue between Cisco Unified Communications Manager, Expressway-C, and Expressway-E, an engineer sees this output in the Expressway-E logs. Even...
Expressway Traversal ZoneAuthentication FailureMRA TroubleshootingSIP Authentication - Question #56Cisco Expressway for Collaboration
A company has a traversal client that resides in the DMZ in the enterprise network and has a requirement for B2B calling. Which Cisco Collaboration Edge component addresses this re...
Cisco Expressway-EDMZB2B CallingCollaboration Edge - Question #57Cisco Webex Technologies
What is a key configuration requirement for Hybrid Message Service High Availability deployment with multiple IM and Presence clusters?
Hybrid Message ServiceIM and PresenceHigh AvailabilityIntercluster Sync Agent - Question #58Mobile and Remote Access
Which DNS record and port combination must be resolved externally for Mobile and Remote Access to be used?
Mobile and Remote AccessDNS SRV recordExpressway-EPort 8443 - Question #59Mobile and Remote Access
Cisco Collaboration endpoints are exchanging encrypted signaling messages. What is one major complication in implementing NAT ALG for voice and video devices?
NAT ALGEncrypted SignalingNAT TraversalCollaboration Security - Question #60Initial Expressway Configurations
Which step is taken when configuring a Cisco Expressway solution?
Expressway-EStatic NATDMZInitial Setup - Question #61Cisco Webex Technologies
An administrator is configuring a new Cisco Webex Hybrid Message Service deployment, and the Expressway-C Message Connector is successfully registered in the Control Hub. After the...
Webex Hybrid Message ServiceExpressway-CAXL APIIM and Presence Service - Question #62Cisco Expressway for Collaboration
Refer to the exhibit. When configuring a search rule that routes calls to a zone, what occurs when 13358 is dialed?
Cisco ExpresswaySearch RulesCall RoutingTraversal Zone - Question #63Cisco Webex Core Components
Refer to the exhibit. 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?
Webex Video MeshMedia FailoverHybrid ServicesWebex Teams - Question #64Cisco Expressway for Collaboration
Refer to the exhibit. Which description of the transformation is true?
Expressway TransformationsSIP URI NormalizationRegular Expressions - Question #65Mobile and Remote Access
You must install an Expressway Edge server pair to enable mobile and remote access for a customer network. Which two requirements are used to install an MRA solution successfully?...
Expressway EdgeMobile and Remote Access (MRA)CertificatesDNS SRV - Question #66Cisco Expressway for Collaboration
Which two statements about Expressway-C / Expressway-E Firewall Traversal are correct? (Choose two.)
Expressway Firewall TraversalSIP ALGH.323 ALGNAT Configuration - Question #67Cisco Expressway for Collaboration
Which media encryption mode can be configured on an Expressway zone?
Expressway zonesMedia encryptionSecurity configurationCall signaling - Question #68Cisco Expressway for Collaboration
What is the purpose of a transform in the Expressway server?
Expressway TransformsAlias ManipulationSIP AliasesCall Routing - Question #69Cisco Webex Core Components
A Cisco Webex Hybrid Video Mesh Node can be installed in the DMZ and on the internal network. Which statement is true?
Webex Video MeshDMZ NetworkingFirewall RulesHybrid Video Services - Question #70Cisco Expressway for Collaboration
An organization with a domain name of example.com. Which two SRV records are valid for a SIP and H.323 communication? (Choose two.)
DNS SRV RecordsSIPH.323Collaboration Protocols - Question #71Mobile and Remote Access
How does an administrator configure an Expressway to make sure an external caller cannot reach a specific internal address?
Expressway-ECall Policy RulesCall BlockingExternal Access Control - Question #72Mobile and Remote Access
Refer to the exhibit. Which inbound connection should an administrator configure on the outside firewall?
Expressway Firewall PortsXMPPMobile and Remote AccessDMZ Configuration - Question #73Initial Expressway Configurations
Which SIP media encryption mode is applied by default for newly created zones in the Cisco Expressway?
Cisco ExpresswaySIP Media EncryptionZonesDefault Settings - Question #74Cisco Expressway for Collaboration
Which two licenses are required for the Expressway B2B feature to work? (Choose two)
Expressway B2BExpressway LicensingTraversal ServerRich Media Sessions - Question #75Mobile and Remote Access
A MRA deployment is being configured where one of the requirements is for registered Jabber users to pull directory photos from an internal server. What should be configured on the...
Mobile and Remote AccessExpressway-CHTTP Allow ListJabber - Question #76Mobile and Remote Access
An external Jabber device cannot register. While troubleshooting this issue, the engineer discovers that privately signed certificates are being used on Expressway-C and Expressway...
Jabber RegistrationExpressway CertificatesPrivate CAMRA Trust - Question #77Cisco Expressway for Collaboration
Which connection does the traversal zone configuration define?
Traversal ZoneCisco Expressway-CCisco Expressway-EExpressway Architecture - Question #78Initial Expressway Configurations
Refer to the exhibit. The firewall has been configured from NAT 192.168.108.2 to 100.64.0.1. Which configuration changes are needed for an Expressway-E with dual network interfaces...
Expressway-ENAT configurationDual network interfacesNetwork settings - Question #79Initial Expressway Configurations
An engineer wants to configure a zone on the Expressway-E to receive communications from the Expressway-C in order to allow inbound and outbound calls. How is the peer address conf...
Expressway ZonesExpressway-C Expressway-E CommunicationStatic NATPeer Address Configuration - Question #80Cisco Expressway for Collaboration
Between which two DTMF relay methods does the Expressway support interworking? (Choose two.)
DTMF RelayExpresswayRFC 2833H.245 - Question #81Cisco Expressway for Collaboration
Refer to the exhibit. A new neighbor zone is added for a new Cisco Meeting Server, but the zone is showing a SIP status of failed from the time the zone it was created. What should...
Cisco ExpresswayNeighbor ZonesSIP TroubleshootingDNS - Question #82Mobile and Remote Access
What allows endpoints behind a NAT to discover the paths through which they will pass media?
NAT TraversalICE ProtocolMedia Path DiscoveryCollaboration Endpoints - Question #83Cisco Expressway for Collaboration
Which two types of information does Cisco Expressway back up? (Choose two.)
Cisco ExpresswayBackupCall RecordsSecurity Certificates - Question #84Cisco Webex Core Components
When a Cisco Webex Video Mesh Node is co figured for an organization, which process does the Webex Teams client use to discover the optimal bridging resource?
Webex Video MeshHybrid Media ServicesClient Media FlowMedia Bridging - Question #85Key Concepts
Which protocol should be used to verify the connectivity for different media paths found during a call using ICE?
ICESTUNNAT TraversalMedia Connectivity - Question #86Mobile and Remote Access
Which two considerations must be made when using Expressway media traversal? (Choose two.)
Expressway DeploymentMobile and Remote Access (MRA)DMZTraversal Zones - Question #87Mobile and Remote Access
Refer to the exhibit. Which two outbound connections should an administrator configure on the internal firewall? (Choose two.)
Firewall ConfigurationExpressway MRACollaboration ProtocolsNetwork Ports - Question #88Cisco Expressway for Collaboration
Which complication does a NAT introduce in SDP for a SIP call?
SIPNATSDPMedia Negotiation - Question #89Cisco Expressway for Collaboration
Cisco media traversal technology has enabled a secure environment where internal video endpoints call and receive calls from external video endpoints. How does the Expressway-C and...
Expressway-CExpressway-ETraversal ZoneCommunication Flow - Question #90Cisco Expressway for Collaboration
Which dial plan component is configured in Expressway-C to route a call to the Cisco UCM?
Expressway-CDial PlanSearch RuleCall Routing - Question #91Mobile and Remote Access
Which attribute in the SDP for a call is affected by the static NAT address configuration in an Expressway-E?
Expressway-E NATSDP connection attributeNAT traversalMedia negotiation - Question #92Cisco Expressway for Collaboration
An engineer is deploying an Expressway solution for the SIP domain Cisco.com. Which SRV record should be configured in the public DNS to support inbound B2B calls?
ExpresswayDNS SRVB2B CallingSIP - Question #93Cisco Expressway for Collaboration
A call is sent by Cisco UCM to Expressway with a URI of [email protected]. If (7508...) @expc1a\.pod8\.test\.lab.* is the pattern string, what would be the replacement...
ExpresswayTransformation RulesRegular ExpressionsURI Rewriting - Question #94Cisco Expressway for Collaboration
Refer to the exhibit. Calls to locally registered endpoints are failing. At present, there are two endpoints registered locally to this Expressway. An H.323 endpoint with an alias...
ExpresswayCall RoutingDialplanTransforms - Question #95Mobile and Remote Access
Refer to the exhibit. An engineer is deploying mobile and remote access in an environment that already had functioning Business to Business calling. Mobile and remote access SIP re...
Mobile and Remote Access (MRA)SIP TroubleshootingExpressway-CCUCM SIP Trunk Configuration - Question #96Mobile and Remote Access
Refer to the exhibit. Logins and failing via mobile and remote access. How is this resolved?
Mobile and Remote Access (MRA)Cisco ExpresswayTraversal ClientTroubleshooting - Question #97Mobile and Remote Access
Refer to the exhibit. Mobile and remote access is being added to an existing B2B deployment and is failing. When the administrator looks at the alarms on the Expressway-C, the snip...
Mobile and Remote Access (MRA)Expressway-CCisco UCM SIP TrunkPort Troubleshooting - Question #98Mobile and Remote Access
Refer to the exhibit. The administrator attempted to log in, but Jabber clients cannot log in via mobile and remote access. How is this issue resolved?
Mobile and Remote Access (MRA)DNS SRV recordsExpressway-EJabber connectivity - Question #99Mobile and Remote Access
Refer to the exhibit showing logs from the Expressway-C, a copy of the Expressway-E certificate, and the UC traversal zone configuration for the Expressway-C. An office administrat...
Mobile and Remote AccessCisco ExpresswayTraversal ZoneTLS Negotiation - Question #100Cisco Webex Core Components
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 option...
Webex Hybrid Calendar ServiceCisco Webex Control HubUser ManagementBulk Entitlement