300-820 Practice Questions
236 real 300-820 exam questions with expert-verified answers and explanations. Page 3 of 5.
- Question #101Cisco Webex Core Components
What is a requirement when configuring the Cisco Webex Hybrid Message account for accessing the API of the Cisco UCM IM and Presence Service?
Webex Hybrid MessageUCM IM&P IntegrationAXL APIApplication User Configuration - Question #102Cisco Webex Technologies
The Cisco Webex Hybrid Message service is deployed geographically for separate Cisco Unified IM and Presence clusters. What must be configured in the Cisco Webex Control Hub to ach...
Cisco Webex Hybrid Message ServiceWebex Control HubResource GroupsCisco Unified IM and Presence - Question #103Cisco Webex Core Components
What should an engineer use to create users for a Cisco Jabber Cloud Deployment?
User ManagementJabber Cloud DeploymentWebex Administration ToolCloud Collaboration - Question #104Initial Expressway Configurations
Refer to the exhibit. What are "Type" field values for this Expressway servers zone configuration?
ExpresswayTraversal ZoneExpressway-CExpressway-E - Question #105Cisco Expressway for Collaboration
Refer to the exhibit. Call policy rules on an Expressway-E prevent external callers from the internet from calling a VIP whose URI is [email protected]. Which additional configuration...
Expressway Call PoliciesExpressway ZonesAuthentication StatusExternal Call Control - Question #106Mobile and Remote Access
Refer to the exhibit. An administrator troubleshoots Cisco Jabber users experiencing issues when trying to log in and notices errors in the Jabber problem report log. The administr...
Cisco JabberXMPPIM and PresenceTroubleshooting - Question #107Cisco Expressway for Collaboration
Refer to the exhibit. When Expressway-E routes a call with URI [email protected] to a DNS zone, which DNS server does the Expressway query for the SIP SRV records?
Expressway-EDNS ResolutionSIP SRV RecordsCall Routing - Question #108Cisco Expressway for Collaboration
Drag and Drop Question Drag and drop the required SAN field items from the left onto the features within the server categories on the right. Answer:
SAN CertificatesExpresswayCertificate ManagementMobile and Remote Access - Question #109Cisco Webex Technologies
Refer to the exhibit. A Cisco Webex device on an enterprise network has identified the given STUN round-trip delays in milliseconds to the enterprise Video Mesh clusters and two We...
Webex Media Cluster SelectionSTUN LatencyWebex Video MeshWebex Cloud Media Cluster (WCMC) - Question #110Cisco Webex Core Components
Drag and Drop Question Drag and drop the services from the left onto their descriptions on the right. Some services are used more than once. Answer:
Webex Core ComponentsWebex Control HubWebex Hybrid ServicesService Functionality - Question #111Cisco Webex Technologies
Why would a Cisco Jabber contact under Hybrid Messaging Integration be grayed out?
Hybrid MessagingJabber PresenceWebex Teams PresenceUser Inactivity Timeout - Question #112Cisco Expressway for Collaboration
An engineer must fix broken SSH tunnels between Expressway-C (192.168.10.5) and Expressway-E (192.168.20.5). The engineer is advised that the packet capture shows the required pack...
Expressway InterconnectFirewall RulesSSH TunnelsPort 2222 - Question #113Initial Expressway Configurations
Which 16-digit number is unique to a serial number and is used to enable the system?
Release keyExpressway licensingSystem enablement - Question #114Mobile and Remote Access
An administrator is configuring DNS to allow Mobile and Remote Access logins for the domain cisco.com. Where must the _collab-edge_tls.cisco.com DNS SRV record be configured?
Mobile and Remote AccessDNS SRVExpressway-EPublic DNS - Question #115Mobile and Remote Access
Cisco Jabber clients are failing to log in using Mobile and Remote Access. The administrator checked the Jabber problem report logs and saw that connections to the Expressway-E are...
Mobile and Remote Access (MRA)Cisco ExpresswayTCP/IP TroubleshootingFirewall - Question #116Cisco Expressway for Collaboration
An organization wants to be able to call IP addresses and URI addresses. An engineer must configure Cisco Expressways to manage this request from the endpoints in the organization....
Cisco ExpresswayExternal Call RoutingExpressway-C/EDirect/Indirect Routing - Question #117Cisco Webex Technologies
When the network requirements are configured for a new Video Mesh deployment, which firewall ports are required so that Video Mesh cascade signaling succeeds?
Video MeshFirewall PortsCascade SignalingNetwork Requirements - Question #118Mobile and Remote Access
An engineer must configure the zone to connect to an Expressway-E using Single NIC with NAT. The internal IP address is 192.168.10.63, and the NAT address is 203.0.113.5. What must...
Expressway Traversal ZoneExpressway-C ConfigurationExpressway-E NATSingle NIC Deployment - Question #119Cisco Expressway for Collaboration
Cisco Collaboration deployment has video endpoints that can do B2B calls over the internet, but they also can make audio calls through a gateway. This ability means that someone fr...
Search RulesSecurityFraud PreventionExpressway Call Routing - Question #120Cisco Expressway for Collaboration
An engineer reviews the configuration of a pair of Expressway servers for a company with the domain example.com. The company allows toll fraud calls to reach the Cisco UCM only whe...
Expressway-E ConfigurationToll Fraud PreventionCPLCall Routing Logic - Question #121Cisco Expressway for Collaboration
Which two internal SIP endpoints behind a firewall place calls to external devices? (Choose two.)
Expressway-C FunctionSIP Static NATExternal Call RoutingMedia Path Management - Question #122Cisco Expressway for Collaboration
Which mechanism does TLS use to validate identity?
TLSCertificatesIdentity ValidationSecurity Protocols - Question #123Cisco Expressway for Collaboration
An engineer is investigating failing incoming calls that are expected to connect. The engineer notices that the failed calls all have a port number of 5060 at the end of the URI. T...
Expressway TransformsCall RoutingSIP URI ManipulationRegular Expressions - Question #124Mobile and Remote Access
An engineer is deploying Mobile and Remote Access to allow external Cisco Jabber users to sign into a Cisco UCM cluster via Cisco Expressways. The users will sign-in in the format...
Mobile and Remote Access (MRA)Cisco Expressway-CHTTP Allow ListJabber Contact Photos - Question #125Mobile and Remote Access
An engineer configures a Cisco Collaboration environment to use Mobile and Remote Access for external access for company users. The engineer uses OAuth with refresh on the Cisco UC...
Mobile and Remote AccessCisco ExpresswayPort ConflictsTroubleshooting - Question #126Cisco Webex Technologies
What is a benefit of Cisco Webex Messenger Cloud deployment?
Webex CloudInteroperabilityJabberWebex App - Question #127Cisco Expressway for Collaboration
Cisco Collaboration endpoints are exchanging encrypted signaling messages. What is one complication in implementing NAT ALG for voice and video devices?
NAT ALGEncrypted SignalingCollaboration Security - Question #128Cisco Webex Core Components
How are Cisco Webex Video Mesh deployments supported?
Webex Video MeshDeploymentDMZDual NIC - Question #129Mobile and Remote Access
An administrator is deploying Cisco Expressways for Mobile and Remote Access. The registration domain is "example.com", and the Expressway-E FQDN is "expe.example.com". Cisco Jabbe...
Cisco ExpresswayMobile and Remote Access (MRA)DNS SRV RecordsService Discovery - Question #130Cisco Expressway for Collaboration
How is the communication routed in a Hybrid deployment so that people on Cisco Cloud-Based IM are able to communicate with Cisco Jabber users in the on-premises environment?
Hybrid IMExpressway-CWebex Cloud IntegrationJabber - Question #131Cisco Expressway for Collaboration
An engineer learns from an end user that calls from outside the company are not being received. Calls are being made to other businesses outside of the company on video using URL a...
Expressway TroubleshootingInbound Call FlowDiagnostic LoggingExpressway-E - Question #132Cisco Webex Core Components
Which protocol and port are used for signaling between on-premises Cisco Webex Video Mesh Nodes and Cloud Media Services?
Cisco Webex Video MeshCloud Media ServicesSignaling ProtocolsHTTPS - Question #133Mobile and Remote Access
An engineer is supporting an existing Cisco Collaboration deployment that has internal and external home users using the solution without VPN. Business usage also includes B2B call...
Mobile and Remote Access (MRA)Jabber ClientTroubleshootingExpressway Alarms - Question #134Initial Expressway Configurations
Which interworking option must be used on the Expressway for it to act as a SIP/H.323 gateway when no endpoint is registered?
Cisco ExpresswaySIP/H.323 InterworkingGateway ConfigurationCall Routing - Question #135Mobile and Remote Access
An employee has recently left an organization and a manager suspects that this employee may have made changes to the system that no one is aware of. Mobile and Remote Access regist...
Cisco ExpresswayTraversal ZonesMobile and Remote Access (MRA)External Calling - Question #136Cisco Expressway for Collaboration
An administrator configures a secure SIP trunk in Cisco UCM to Expressway-C. The SIP trunk fails to become active, and an examination of a packet capture finds that the TLS handsha...
Cisco UCMExpresswaySIP Trunk TLSCertificate Trust Store - Question #137Mobile and Remote Access
An administrator is enabling Mobile and Remote Access login for the Cisco UCM registration domain cisco.com. Phones are registered with a Cisco UCM phone security profile name of s...
Mobile and Remote AccessExpressway CertificatesSubject Alternative NamesCisco Unified Communications Manager - Question #138Mobile and Remote Access
Cisco Expressways are being deployed for Mobile and Remote Access. The Expressway-E internal interface (LAN1) IP is 192.168.100.10/24, and the external interface (LAN2) IP is 172.1...
Expressway-EMobile and Remote Access (MRA)RoutingStatic Routes - Question #139Mobile and Remote Access
An administrator installs a new webserver (server1.example.com - 10.1.1.90) for storing Cisco Jabber update files to the network, but all Mobile and Remote Access registered client...
Mobile and Remote Access (MRA)Jabber Client UpdatesExpressway ConfigurationWeb Server Access - Question #140Cisco Expressway for Collaboration
What is the first step to restoring an Expressway cluster from a backup?
ExpresswayClusteringBackup and RestoreSystem Management - Question #141Mobile and Remote Access
An engineer must configure Mobile and Remote Access. One of the requirements is to expect Cisco Jabber users to enter [email protected] as the login userid. Which DNS record must...
Mobile and Remote Access (MRA)DNS SRV RecordsCisco JabberExpressway Discovery - Question #142Mobile and Remote Access
Which commands disable SIP Inspection on the Cisco ASA FirePOWER firewall?
SIP InspectionCisco ASAFirewall ConfigurationExpressway - Question #143Cisco Expressway for Collaboration
Which dial plan settings can be used to set up different regulations according to the protocol (SIP or H.323) or the source of the query?
Dial PlanSearch RulesProtocol-based RoutingCisco Expressway - Question #144Cisco Expressway for Collaboration
When external video endpoints are called via a DNS zone, which dialing method requires DNS to be configured in the Expressway server?
ExpresswayURI DialingDNSExternal Calling - Question #145Cisco Expressway for Collaboration
A company has a single Expressway-E that exhibits high resource utilization. An engineer checks the logs and finds numerous fraudulent attempts from sip:[email protected]. Where must t...
Expressway-ECall PolicyURI BlockingSecurity - Question #146Cisco Expressway for Collaboration
How do the Cisco Expressway-C and Expressway-E servers transmit media to each other?
Expressway-CExpressway-ERTP/RTCP MultiplexingMedia Transmission - Question #147Cisco Expressway for Collaboration
An engineer must enable the communication between two separate Expressway-C servers to allow inbound and outbound calling between different endpoints registered on each server. Whi...
Expressway-CNeighbor ZoneCall RoutingInter-Expressway Communication - Question #148Cisco Expressway for Collaboration
A video device registered with Cisco UCM failed to make an outbound B2B call. From Expressway-C diagnostic logs, an engineer found that the destination pattern is "[email protected]...
Expressway-CCall RoutingTransformsSIP URI Manipulation - Question #149Mobile and Remote Access
Which type of interface is required when the Cisco Expressway-E is located in a DMZ between two separate firewalls on separate network segments?
Cisco Expressway-EDMZ deploymentDual network interfaceMobile and Remote Access (MRA) - Question #150Cisco Expressway for Collaboration
What is a description of an Interactive Connectivity Establishment?
ICEInteractive Connectivity EstablishmentMedia TraversalFirewall Traversal