CCNA Cloud And Hybrid Services Questions

MCQhard

When troubleshooting a Hybrid Service, you need to collect 'Diagnostic Logs'. Where do you download these from?

A.The Webex App settings menu.

B.The Expressway-C Maintenance > Diagnostics page.

C.The Cisco CLI using the 'log collect' command.

D.Control Hub under the Troubleshooting tab.

AnswerB

This is the standard location for generating diagnostic log bundles on an Expressway.

Why this answer

The Expressway provides a dedicated 'Maintenance > Diagnostics' section where you can generate and download comprehensive log bundles for support analysis.

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MCQeasy

What is the first step to enable Webex Hybrid Services in a new organization?

A.Register the organization in Control Hub.

B.Purchase a PSTN plan.

C.Install the Expressway-C software.

D.Assign licenses to all users.

AnswerA

Control Hub organization registration is the baseline for all services.

Why this answer

Enabling the Hybrid Services feature in the Control Hub settings is the foundational step before registering any connectors.

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MCQmedium

Which deployment model should be chosen for Cloud Connected PSTN (CCP) if the organization wants to leverage their existing carrier contracts?

A.Local Gateway PSTN

B.Webex Calling PSTN via Cisco

C.Cloud Connected PSTN (CCP)

D.Webex Calling Dedicated Instance

AnswerC

CCP is specifically designed to bring existing carrier trunks into Webex Calling.

Why this answer

CCP allows customers to connect their own carrier SIP trunks directly to the Webex Calling cloud via a certified partner.

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Multi-Selectmedium

Which TWO of the following are valid deployment models for the Webex Calling PSTN connectivity? (Choose two)

Select 2 answers

A.Webex Calling dedicated ISP.

B.Hybrid Cloud PSTN.

C.Local Gateway.

D.Peer-to-Peer PSTN.

E.Cloud Connected PSTN (CCP).

AnswersC, E

This is a core supported PSTN connectivity model.

Why this answer

Customers can choose between Local Gateway (using on-premises hardware) or Cloud Connected PSTN (using a cloud provider partner) for their calling connectivity.

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Multi-Selecthard

Which THREE of the following are required for the successful operation of the Webex Hybrid Calendar service? (Choose three)

Select 3 answers

A.A valid configuration in Control Hub.

B.An Expressway-C node.

C.A Cisco Unified Communications Manager cluster.

D.A public PSTN trunk.

E.A service account in the Exchange/O365 environment.

AnswersA, B, E

The cloud-side configuration ties the connector to the tenant.

Why this answer

The Hybrid Calendar requires a properly configured service account, the connector host (Expressway), and an integration configuration in Control Hub.

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MCQhard

You are troubleshooting a scenario where users in a Hybrid Calendar deployment cannot see free/busy information for their on-premises Exchange resources. Which tool in Control Hub provides the most granular logs for the Hybrid Calendar service?

A.Hybrid Service Connector Status Logs

B.Exchange EWS Connectivity Test

C.Control Hub Analytics Dashboard

D.Webex Calling Provisioning Report

AnswerA

Connector logs are the primary diagnostic tool for hybrid services.

Why this answer

The Hybrid Service logs accessible via the 'Troubleshoot' section within the Hybrid Service connector page provide specific exchange connectivity data.

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MCQhard

An administrator needs to enable Hybrid Calendar Service for a user who uses Microsoft Exchange 2019 on-premises. Which service component must be deployed to facilitate the integration?

A.Expressway-C Calendar Connector

B.Hybrid Media Node

C.Webex Calling Gateway

D.Webex Edge Node

AnswerA

The Calendar Connector resides on the Expressway-C and interacts with Exchange.

Why this answer

The Hybrid Calendar Service requires the Expressway-C connector to communicate with the Exchange Web Services (EWS).

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MCQmedium

What is the primary function of the Cisco Webex Edge Audio service?

A.To allow calling into Webex meetings via the corporate PSTN network.

B.To allow users to join meetings without an internet connection.

C.To encrypt all meeting audio traffic.

D.To provide high-definition video conferencing.

AnswerA

This service routes meeting audio through the company's existing PSTN trunking.

Why this answer

Webex Edge Audio allows users to use their existing PSTN connectivity to join Webex meetings, reducing audio costs.

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MCQmedium

What happens to a user's Webex account if they are removed from the synchronized Active Directory group?

A.The account remains active indefinitely.

B.The account is moved to a guest group.

C.The account becomes a free account.

D.The account is deactivated in Webex.

AnswerD

Synchronization ensures that the cloud status matches the source directory status.

Why this answer

The Directory Connector will detect the removal and trigger the account's deletion or suspension in the Webex cloud based on the configured policy.

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MCQhard

You need to ensure that the Webex App can perform 'Click-to-Call' from a browser. What must be installed on the user's machine?

A.The Hybrid Calendar connector.

B.A local PSTN gateway.

C.Cisco Jabber for Windows.

D.Webex browser extension.

AnswerD

The browser extension handles the protocol mapping for click-to-call.

Why this answer

The 'Webex Extension' for browsers enables the integration of click-to-call functionality from web pages directly into the Webex App.

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Multi-Selectmedium

Which TWO of the following are valid methods for connecting on-premises PSTN to Webex Calling?

Select 2 answers

A.Direct SIP to CUCM

B.H.323 Trunking

C.Webex Edge for Calling

D.Local Gateway

E.Cloud Connected PSTN

AnswersD, E

This is a supported method for PSTN.

Why this answer

The two primary methods are the Local Gateway (via CUBE/Expressway) and Cloud Connected PSTN (CCP).

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MCQeasy

Where in Webex Control Hub do you verify the health status of Hybrid Service connectors?

A.Troubleshooting tab

B.Devices tab

C.Services tab

D.Users tab

AnswerC

This section contains the connector status for Hybrid Services.

Why this answer

The 'Services' tab within Control Hub provides a dashboard for all deployed Hybrid Services and their connector health.

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MCQeasy

Which of the following is a key advantage of utilizing Cloud Connected PSTN (CCP)?

A.It allows for legacy analog phone support without an ATA.

B.It provides free long-distance calling globally.

C.It requires no internet connection.

D.It eliminates the need for on-premises PSTN gateways.

AnswerD

CCP moves the PSTN termination to the cloud, removing the need for local gateway hardware.

Why this answer

CCP allows for a simplified management experience by connecting your existing PSTN provider directly to the Webex Calling cloud.

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MCQmedium

When using Webex Calling with the Local Gateway, which protocol is used for the SIP trunk between the CUBE and the Webex Calling cloud?

A.H.323

B.SCCP

C.MGCP

D.SIP

AnswerD

SIP is the standard protocol for trunking in modern VoIP environments.

Why this answer

Webex Calling uses SIP (Session Initiation Protocol) to establish and manage the media and signaling paths between the gateway and the cloud.

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MCQmedium

You need to ensure that the Webex Hybrid Calendar service can access an Exchange 2019 environment. Which authentication method is recommended by Cisco for this deployment?

A.Digest Authentication

B.OAuth 2.0

C.Basic Authentication

D.Kerberos Constrained Delegation

AnswerB

OAuth is the modern authentication protocol supported by Exchange 2019 and Webex Hybrid Services.

Why this answer

For Exchange 2019, modern authentication (OAuth) is the standard and recommended approach for security and compatibility.

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MCQmedium

Which configuration in Control Hub allows you to define the emergency address for a user in a Webex Calling environment?

A.User Profile Settings.

B.Device Settings.

C.Organization Settings.

D.Location Settings.

AnswerD

Emergency addresses are tied to the physical location/site definition.

Why this answer

Location settings in Control Hub allow for the definition of E911 addresses associated with a specific site or user.

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Multi-Selectmedium

Which TWO features are included in the Webex Control Hub 'Troubleshooting' tool?

Select 2 answers

A.Historical call quality data analysis

B.Real-time call participant monitoring

C.Direct router configuration

D.Automated firmware deployment

E.User password reset

AnswersA, B

Provides historical insights into call trends.

Why this answer

The tool allows for real-time call monitoring and historical report generation for voice/video calls.

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MCQeasy

Which component is required to synchronize users from an on-premises Active Directory to the Webex Cloud?

A.Cisco Directory Connector

B.Webex Calling Admin Console

C.Expressway-C

D.Cisco Webex HDS

AnswerA

Directory Connector manages the sync between local AD and the cloud.

Why this answer

The Cisco Directory Connector is the standard tool for provisioning and synchronizing user identities from LDAP/AD to Webex.

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Multi-Selecteasy

Which TWO of the following are necessary to configure 'Hybrid Call Service' for Cisco Unified Communications Manager? (Choose two)

Select 2 answers

A.Cisco Unified Communications Manager configuration.

B.A separate Webex Edge server.

C.An on-premises PSTN gateway.

D.Expressway-C registered to Webex.

E.A dedicated public IP address for the CUCM.

AnswersA, D

CUCM needs to be configured to talk to the Expressway-C.

Why this answer

Hybrid Call Service requires an Expressway-C registered to the cloud and a corresponding configuration on the CUCM side to allow for call routing.

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Multi-Selectmedium

Which TWO of the following describe the purpose of the Webex Edge for Devices service?

Select 2 answers

A.Automatically provisions local gateways

B.Provides a SIP trunking gateway

C.Replaces the need for a web proxy

D.Enables hybrid registration (CUCM + Cloud)

E.Allows cloud-based management of on-premises registered devices

AnswersD, E

Allows devices to utilize both environments.

Why this answer

It allows for a hybrid registration model (cloud and CUCM) and enables cloud-based management features.

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Multi-Selecthard

Which THREE items are required to successfully register a room device to Webex?

Select 3 answers

A.A valid Webex Device license

B.A local SIP trunk

C.An existing CUCM registration

D.A valid activation code from Control Hub

E.An active internet connection

AnswersA, D, E

Required to enable the device in the cloud.

Why this answer

An activation code, network access, and the device license are fundamental requirements.

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MCQmedium

A customer is migrating from CUCM to Webex Calling and requires the same extension numbers to be used across both environments simultaneously. Which feature facilitates this?

A.Hybrid Call Service Aware

B.Dial Plan with PSTN Failover

C.Migration Assistant Tool

D.Directory Sync with CUCM Integration

AnswerD

Syncing ensures the directory reflects the hybrid state required for overlapping extensions.

Why this answer

Directory synchronization and specific routing patterns allow for extension overlapping during a phased migration.

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MCQhard

A company uses Webex Hybrid Calendar Service. Users report that the 'Join' button is missing from their Webex Room devices for scheduled meetings. What is the most likely cause?

A.The Webex site is not integrated with the Control Hub

B.The Room device has not been registered to Webex

C.The Expressway-C does not have a public certificate

D.The user's Exchange mailbox is not assigned to the Hybrid Calendar service

AnswerD

The mailbox must be explicitly enabled for the service to parse the invite.

Why this answer

The Hybrid Calendar Service requires the meeting host to be enabled for the service and the invite to contain specific URI information that the calendar connector parses to generate the join button.

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MCQhard

You are implementing Webex Calling with a Local Gateway. The requirement is to maintain internal dial plan transparency for existing extension-to-extension dialing. What must you configure?

A.Global Dial Plan Replication

B.Directory sync override

C.PSTN overflow routing

D.Location-based routing and dial plan normalization

AnswerD

This ensures extensions map correctly between environments.

Why this answer

To maintain dialing transparency, the dial plan must be synchronized or normalized between the local gateway and the Webex Calling cloud dial plan.

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MCQmedium

You need to migrate users from an on-premises Cisco Unified Communications Manager (CUCM) to Webex Calling. Which tool allows for the bulk onboarding of users while maintaining existing directory synchronization?

A.Webex Edge for Devices

B.CUCM AXL API bulk exporter

C.CSV Template upload in Control Hub

D.Webex Migration Tool

AnswerC

CSV templates in Control Hub provide the bulk onboarding mechanism.

Why this answer

The Webex Directory Connector or SCIM integration is used to sync, but the Webex Control Hub 'Users' management tool is the primary interface for bulk migration assignments.

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MCQmedium

Which protocol does the Webex Hybrid Message service use to communicate with the on-premises IM&P server?

A.SIP

B.SCCP

C.XMPP

D.HTTPS

AnswerC

XMPP is the industry standard for instant messaging and presence exchange.

Why this answer

The Hybrid Message Service uses the Extensible Messaging and Presence Protocol (XMPP) to communicate between the IM&P server and the Webex cloud.

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MCQeasy

Which license type is required to manage Webex Calling services in Control Hub?

A.Webex Meetings License

B.Webex Calling License

C.Webex Room Device License

D.Webex Messaging License

AnswerB

This provides the necessary feature set for cloud calling.

Why this answer

The Webex Calling service license must be assigned to the user or organization to enable PSTN and calling features.

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MCQmedium

You are configuring a Webex Calling environment for a customer that requires integration with an existing on-premises PBX using a Cisco Unified Border Element (CUBE). Which gateway type should you register to Webex Control Hub to enable this connectivity?

A.Cloud Connected PSTN Gateway

B.Local Gateway

C.Webex Edge Connect Gateway

D.Virtual Gateway

AnswerB

Local Gateways allow SIP trunk connectivity between Webex Calling and on-premises equipment.

Why this answer

Local Gateways are used to connect on-premises PSTN or PBX systems to Webex Calling via a CUBE.

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MCQmedium

You are deploying Webex Calling with Local Gateway. Which component must be configured to allow PSTN connectivity for users who have migrated from on-premises CUCM to the cloud?

A.Webex Edge Connect

B.SIP Trunk via Local Gateway

C.Webex Calling Cloud Connected PSTN

D.Unified Border Element (CUBE) API

AnswerB

Local Gateway is the architectural component required for local PSTN access.

Why this answer

The Local Gateway (LGW) uses a SIP trunk to connect the Webex Calling cloud to on-premises PSTN gateways or Session Border Controllers (SBCs).

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MCQmedium

You are configuring a hybrid calling scenario. Which component must be configured to enable inter-cluster dialing between on-premises CUCM and Webex Calling?

A.A SIP Trunk between CUCM and the CUBE.

B.An H.323 Gatekeeper.

C.A secondary Webex app.

D.A PSTN Gateway.

AnswerA

The SIP trunk facilitates the routing of calls between the local environment and the cloud.

Why this answer

A SIP Trunk between the CUCM cluster and the Webex Calling cloud (via a CUBE) is required to route calls between the two environments.

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MCQmedium

Which service allows Webex users to see the presence status of an on-premises Jabber user?

A.Hybrid Presence Service.

B.Hybrid Calendar Service.

C.Webex Calling.

D.Directory Connector.

AnswerA

This is the dedicated service for presence interop.

Why this answer

The Hybrid Presence Service enables the exchange of presence status between the cloud-based Webex platform and the on-premises Cisco Unified Communications Manager IM and Presence (IM&P) service.

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Multi-Selecthard

Which THREE components are involved in the Webex Hybrid Media Service architecture?

Select 3 answers

A.Cloud PSTN Gateway

B.Expressway-C

C.Webex Control Hub

D.CUCM Media Resource Group

E.Webex Media Node

AnswersB, C, E

Used to host the connector.

Why this answer

The architecture relies on Expressway-C, Media nodes, and the cloud-based management platform.

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MCQhard

You are configuring Webex Hybrid Calendar with Microsoft 365. You want to ensure that 'Join' buttons appear on video devices for meetings. What must be configured?

A.Webex Room devices must be registered to the same organization.

B.The Expressway-C must be in the DMZ.

C.Microsoft 365 AutoDiscover must be enabled.

D.The user must have a Webex Calling license.

AnswerA

For OBTP to work, the device must be known to the cloud platform hosting the calendar service.

Why this answer

The 'One Button to Push' (OBTP) feature relies on the Hybrid Calendar service parsing the meeting invite and sending the join info to the device.

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Multi-Selecthard

Which THREE of the following troubleshooting steps should be performed if a Webex Hybrid connector is showing 'Down' in Control Hub? (Choose three)

Select 3 answers

A.Restart the Management Service on the Expressway-C.

B.Verify outbound connectivity to the Webex Cloud on port 443.

C.Re-provision the Active Directory domain controller.

D.Upgrade the CUCM cluster software.

E.Check the local diagnostic logs on the Expressway-C.

AnswersA, B, E

Restarting the service can resolve transient process issues.

Why this answer

When a connector fails, the administrator should verify network connectivity, check the service status on the Expressway, and examine the local logs for errors.

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MCQmedium

When deploying Webex Hybrid Services, what is the purpose of the Expressway-C cluster?

A.To act as a firewall for all enterprise traffic.

B.To store all user messages on-premises.

C.To host the connectors that communicate with the Webex cloud.

D.To manage public DNS records for the organization.

AnswerC

Expressway-C is the host for all hybrid service connectors.

Why this answer

The Expressway-C cluster acts as the secure gateway and connector host that bridges on-premises services to the Webex cloud.

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MCQhard

You are troubleshooting a Webex Hybrid Calendar issue where meetings are missing for a specific user. What tool can you use to check the 'Calendar API' calls?

A.The Cisco Webex App debug logs.

B.Control Hub Troubleshooting tool.

C.Active Directory event viewer.

D.Expressway-C Calendar Connector status page.

AnswerD

This page displays real-time logs of the API calls being made to the exchange server.

Why this answer

The 'Calendar Connector' status page in the Expressway provides an interface to view recent API requests and responses to the calendar server, which is essential for troubleshooting synchronization issues.

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MCQhard

You are troubleshooting high latency for Webex media. Which tool in Control Hub provides the best visibility into the path taken by the media packets?

A.Device logs

B.Calling Quality of Service (QoS) Dashboard

C.Packet Capture (PCAP) from the cloud

D.Network Analysis Tool

AnswerB

This dashboard monitors latency, jitter, and packet loss for calls.

Why this answer

The 'Webex Calling Media Quality' dashboard or the 'Troubleshooting' section in Control Hub provides detailed metrics on hop-by-hop latency.

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MCQmedium

You are configuring Webex Hybrid Message Service. What is the primary purpose of this service?

A.To provide external federation for IM users.

B.To enable messaging between on-premises IM&P users and Webex App users.

C.To archive all Webex messages to an on-premises server.

D.To synchronize user passwords with Active Directory.

AnswerB

This service bridges the IM&P environment with the cloud-based Webex messaging environment.

Why this answer

The Hybrid Message Service allows interoperability between on-premises Cisco Unified Communications Manager (IM and Presence) and the Webex App.

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Multi-Selecthard

When troubleshooting Webex Calling, which THREE factors are critical for maintaining call quality over a hybrid network?

Select 3 answers

A.Quality of Service (QoS) tagging

B.Local database replication speed

C.Low round-trip time (latency)

D.Sufficient upload/download bandwidth

E.Hardware firewall bypass

AnswersA, C, D

Essential for prioritizing voice traffic.

Why this answer

QoS, bandwidth, and latency are the three pillars of maintaining high-quality voice in hybrid environments.

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MCQeasy

Which dashboard in Control Hub provides insights into the quality and usage of hybrid services?

A.Device Dashboard

B.Troubleshooting Dashboard

C.Analytics Dashboard

D.Management Dashboard

AnswerC

The Analytics section provides reporting on usage and quality.

Why this answer

The Analytics dashboard in Control Hub is the central location for viewing performance metrics and usage data for various services.

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MCQhard

An administrator is troubleshooting a failed Hybrid Calendar setup. The 'Connector' shows as 'Down' in Control Hub. What is the most likely reason?

A.The calendar integration license is invalid.

B.The Expressway-C host cannot reach the cloud over port 443.

C.The user's password expired.

D.The user is not in the correct group in Active Directory.

AnswerB

The connector requires outbound HTTPS connectivity to communicate with the Webex cloud.

Why this answer

If the service connector is down, it usually indicates a loss of connectivity from the Expressway-C host to the cloud, or an issue with the management service process on the appliance.

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MCQmedium

When a user is off-network, how do they connect to the corporate network resources if you have deployed Hybrid services?

A.The Expressway-E provides direct access.

B.The user must use a VPN client.

C.The Webex App automatically tunnels all traffic to the corporate network.

D.The Hybrid Services connector bridges the traffic.

AnswerB

VPNs provide the necessary secure path for accessing on-premises resources.

Why this answer

The Webex App typically connects directly to the cloud; if internal resources are needed, a VPN or other secure access method is required, as the Webex App does not act as a site-to-site VPN.

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MCQeasy

What is the maximum number of nodes in a standard Expressway-C cluster for Hybrid Services?

A.8

B.4

C.6

D.2

AnswerC

The platform officially supports up to 6 nodes in a cluster.

Why this answer

A standard Expressway-C cluster supports up to six nodes to ensure high availability and scalability.

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MCQeasy

Which command is used on the Expressway CLI to verify the status of the Hybrid Service connector process?

A.netstat -anp

B.utils webex status

C.show services

D.xstatus management services

AnswerD

The xstatus command displays the status of running services including the connector management.

Why this answer

The 'xstatus' command is the primary tool for verifying the status of processes and services running on the Expressway platform.

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Multi-Selecthard

Which TWO steps are required to successfully deploy the Webex Hybrid Calendar service with Microsoft Exchange?

Select 2 answers

A.Create an impersonation role in Exchange

B.Configure an H.323 gatekeeper

C.Enable Webex Meetings on the local CUCM

D.Disable Active Directory integration

E.Deploy the Calendar Connector on a Virtual Machine

AnswersA, E

Impersonation allows the connector to access user calendars.

Why this answer

The hybrid calendar requires the creation of an application account in Office 365 and the installation of a Calendar Connector.

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Multi-Selectmedium

Which TWO of the following items can be monitored in the Webex Control Hub under the 'Hybrid' tab? (Choose two)

Select 2 answers

A.Physical desk phone inventory.

B.PSTN usage minutes.

C.Connector status (up/down).

D.Connection health metrics.

E.User password history.

AnswersC, D

Status monitoring is the primary function of the dashboard.

Why this answer

The Hybrid tab provides real-time health monitoring and connectivity status for all deployed service connectors.

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MCQmedium

What is the impact of removing a node from a Hybrid Video Mesh cluster that is currently hosting active meetings?

A.The node remains active until the last call ends

B.Active calls are dropped or experience disruption

C.The cloud takes over the media immediately

D.The meetings are automatically migrated to another node

AnswerB

The abrupt removal of a node hosting live traffic causes session disruption.

Why this answer

Active meetings are disrupted. The system will attempt to re-route, but call quality will drop or the call will drop during the shift.

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MCQmedium

You are deploying a Webex Room device in a hybrid environment. What is the benefit of registering it to Webex instead of on-premises CUCM?

A.It allows the device to function without an internet connection.

B.It enables full access to Webex cloud features like whiteboarding and AI-driven metrics.

C.It reduces the bandwidth required for video calls.

D.It forces the device to use on-premises media routing.

AnswerB

Cloud-registered devices have deeper integration with the Webex platform features.

Why this answer

Registering to the cloud allows the device to receive automatic updates and access Webex-specific features like whiteboard sharing and cloud-based call control.

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MCQmedium

When managing Webex Calling using the 'Webex Calling' app versus the 'Webex' app, what determines the calling capabilities?

A.The user's assigned license in Control Hub.

B.The firmware version of the desk phone.

C.The location of the user's home network.

D.The operating system of the device.

AnswerA

License assignment is the primary driver of feature availability in Webex apps.

Why this answer

The calling capabilities are determined by the license assigned to the user in Control Hub, which dictates the service features available to the client.

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MCQhard

You are deploying Webex Hybrid Data Security (HDS). After deploying the virtual machines for the HDS nodes, you find they are not appearing in Control Hub. What is the first step you should take to troubleshoot the registration?

A.Disable the firewall on the HDS node.

B.Restart the Cisco Webex Hybrid Services host.

C.Check the local log files in the HDS node using the CLI.

D.Re-download the management certificate.

AnswerC

Verifying the registration logs on the node is the standard procedure to identify connectivity or credential issues.

Why this answer

The HDS nodes communicate with the cloud via the activation code generated in Control Hub; if they don't appear, check the local logs on the node to see if the registration request is reaching the cloud.

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MCQmedium

You are configuring a local gateway for Webex Calling. Which mechanism ensures that the Webex Cloud can communicate with your on-premises edge device without requiring inbound firewall ports?

A.Webex Calling Connector via port forwarding

B.Outbound TLS connection from CUBE to Webex Cloud

C.SIP Trunk over VPN

D.H.323 Gatekeeper registration

AnswerB

The CUBE initiates an outbound secure connection to Webex cloud.

Why this answer

Webex Calling Local Gateways use the Expressway-C or CUBE to establish an outbound TLS connection to the Webex cloud, removing the need for inbound port openings.

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MCQhard

You are configuring Webex Hybrid Data Security (HDS). What is the purpose of the 'Key Management Service' (KMS) in this architecture?

A.To authenticate users against local Active Directory

B.To facilitate the storage of encrypted meeting recordings

C.To manage SIP signaling encryption

D.To allow the enterprise to maintain control over encryption keys

AnswerD

This is the core value proposition of HDS.

Why this answer

HDS allows customers to hold their own keys; the HDS nodes in the private cloud handle the key encryption and decryption requests to ensure data privacy.

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MCQhard

A user is unable to receive incoming PSTN calls via a Webex Calling Local Gateway. You observe that the INVITE from the provider reaches the CUBE, but the CUBE sends a 403 Forbidden. What is the most likely cause?

A.The PSTN provider is using an unsupported codec

B.The incoming dial peer is missing or misconfigured

C.The Webex cloud is unreachable

D.The user's directory number is not in the PSTN white list

AnswerB

A 403 indicates the CUBE denied the request, typically due to lack of a matching dial-peer.

Why this answer

A 403 Forbidden on the CUBE usually indicates that the dial-peer or translation pattern does not match the incoming number or that the caller is not authorized based on the configured dial peer settings.

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MCQmedium

Which option allows a customer to keep their existing PSTN numbers while moving to Webex Calling?

A.Number aliasing.

B.Number forwarding.

C.Number porting.

D.Number provisioning.

AnswerC

Number porting is the industry-standard process for moving numbers between providers.

Why this answer

Number porting allows customers to move their existing numbers from their current carrier to the Webex Calling service provider.

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MCQmedium

When troubleshooting a Hybrid Media Service node, which log file is most critical for determining if the media is being routed correctly to the cloud?

A.Hybrid Media Service logs

B.Cisco Discovery Protocol logs

C.System event logs

D.Call processing logs

AnswerA

These specifically capture the media node interaction.

Why this answer

The Hybrid Media Service logs on the Expressway-C contain the signaling and media path details necessary for troubleshooting pathing issues.

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MCQhard

A company is implementing Webex Edge Connect. They require a dedicated circuit. Who must they coordinate with to set up the physical connection?

A.The local Internet Service Provider only.

B.The Webex Control Hub automated provisioning tool.

C.Cisco Technical Support

D.A certified Cisco Webex Edge Connect partner.

AnswerD

The physical circuit must be managed by a partner authorized to provide the Webex Edge Connect service.

Why this answer

Webex Edge Connect requires a connection through a certified partner or service provider who can provide the MPLS/dedicated access to the Webex cloud.

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MCQeasy

Where in Webex Control Hub do you go to view the health status of all deployed Hybrid Services connectors?

A.Devices > Management

B.Analytics > Reports

C.Services > Hybrid

D.Users > Settings

AnswerC

The Hybrid section is the dedicated management portal for all Hybrid Service connectors.

Why this answer

The 'Hybrid' tab in Control Hub provides a centralized dashboard for all services, including status and alerts for individual connectors.

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Multi-Selecteasy

Which TWO of the following are valid requirements for deploying the Cisco Directory Connector? (Choose two)

Select 2 answers

A.A Windows Server to host the connector software.

B.An on-premises CUCM cluster.

C.A separate Webex Calling license for every user.

D.A dedicated public IP address for the sync server.

E.A direct connection to the Webex cloud API.

AnswersA, E

The connector software runs on a Windows host.

Why this answer

The Directory Connector requires a Windows-based server and network connectivity to both the Active Directory domain controller and the internet (for the Webex cloud).

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MCQeasy

What is the primary benefit of the 'Webex Edge' strategy?

A.It allows you to use your own cloud hosting.

B.It removes the need for user authentication.

C.It optimizes the quality and reliability of Webex traffic.

D.It eliminates the need for internet access.

AnswerC

Edge services are designed to improve performance and quality.

Why this answer

Webex Edge optimizes the user experience by prioritizing Webex traffic and providing a more direct, secure, and reliable connection to the cloud.

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Multi-Selectmedium

Which TWO tasks must be performed when setting up Webex Hybrid Calendar service with Microsoft Exchange?

Select 2 answers

A.Create a dedicated DNS zone for Exchange

B.Configure a SIP trunk between Exchange and Webex

C.Install an H.323 gateway in the DMZ

D.Grant the service account ApplicationImpersonation rights

E.Enable the Hybrid Calendar service in Control Hub

AnswersD, E

This is required for the service to access user calendars.

Why this answer

You must grant service account permissions to the calendar and configure the service in Control Hub.

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MCQmedium

A user in your organization cannot see their on-premises calendar events in the Webex App. You have verified that the Webex Hybrid Calendar Service is registered. What is the most likely cause?

A.The user is not assigned a Webex Calling license.

B.The Webex Hybrid Message Service is not running.

C.The Cisco Directory Connector has not synced the user object.

D.The Hybrid Calendar service account lacks 'Full Access' permissions to the user's mailbox.

AnswerD

The service account must have explicit permissions to impersonate or access the mailbox to read calendar data.

Why this answer

The Hybrid Calendar Service requires the user to be associated with an email address that matches the calendar resource; if the synchronization is failing, the Exchange or O365 integration requires re-authentication via the Connector host.

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MCQeasy

Which protocol is required for the Webex Hybrid Directory Connector to communicate with on-premises Active Directory?

A.LDAP

B.XML

C.SIP

D.SNMP

AnswerA

LDAP is the industry standard for querying directory services.

Why this answer

The Directory Connector uses LDAP to query and sync users from the local AD to the Webex Cloud.

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MCQhard

You notice high latency on calls placed through a Local Gateway. Which metric should you inspect in the Webex Control Hub to confirm the issue is with the network path?

A.Network latency and jitter.

B.Calling license usage.

C.User status.

D.Device firmware version.

AnswerA

These metrics directly identify network congestion or path quality issues.

Why this answer

The 'Quality of Service' (QoS) and 'Network Metrics' within the Webex Control Hub Troubleshooting section provide data on jitter, packet loss, and latency.

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MCQeasy

What is the purpose of the 'Webex Service' account in Active Directory when using Directory Connector?

A.To encrypt the synchronization traffic.

B.To read directory objects for synchronization.

C.To manage the user's email password.

D.To bypass the firewall.

AnswerB

Read permissions allow the connector to pull the necessary user data.

Why this answer

The service account requires specific permissions to read directory objects from the domain controller to synchronize them to the Webex cloud.

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Multi-Selectmedium

Which TWO of the following features are supported by the Webex Hybrid Message Service? (Choose two)

Select 2 answers

A.Voicemail transcription.

B.Instant message exchange.

C.Email synchronization.

D.Presence status synchronization.

E.Web-based meeting recording.

AnswersB, D

Message exchange is the primary purpose of the service.

Why this answer

The Hybrid Message service facilitates presence updates and message exchange between on-premises IM&P users and the Webex App.

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MCQmedium

You are configuring a Webex Calling environment and need to integrate an on-premises PBX via a Local Gateway. Which component must be configured on the CUBE to ensure signaling reachability to the Webex Cloud?

A.Cloud Connected PSTN Gateway

B.Media Termination Point

C.H.323 Gatekeeper

D.SIP Trunk Group

AnswerD

The SIP trunk is the essential component for connecting the Local Gateway to the Webex Calling cloud.

Why this answer

A SIP Trunk must be established between the CUBE and the Webex Calling cloud using the specific Webex signaling IP addresses.

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Multi-Selecteasy

Which TWO of the following are required components of a Cisco Local Gateway deployment? (Choose two)

Select 2 answers

A.An on-premises Active Directory server.

B.A Cisco Unified Border Element (CUBE).

C.A SIP trunk connecting to Webex Calling.

D.A dedicated fiber-optic internet connection.

E.A cloud-based PSTN provider.

AnswersB, C

CUBE is the mandatory gateway component.

Why this answer

A Local Gateway requires a CUBE (Cisco Unified Border Element) and a SIP trunk to the Webex Calling cloud.

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Multi-Selecthard

Which THREE of the following items are verified during the Webex Hybrid Service connector installation? (Choose three)

Select 3 answers

A.The local PBX manufacturer.

B.Active Directory service account privileges.

C.User's home network speed.

D.Outbound HTTPS connection to the cloud.

E.SSL/TLS certificate trust chain.

AnswersB, D, E

Permissions must be verified for the service to function.

Why this answer

The installation process validates that the Expressway-C can communicate with the cloud, that the certificates are trusted, and that the service account has the necessary permissions.

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MCQhard

When configuring Hybrid Call Service for Cisco Unified Communications Manager, which specific requirement must be met for the Expressway-C and Expressway-E pair?

A.They must be configured with a Unified Communications traversal zone.

B.They must use the same certificate authority as the CUCM nodes.

C.They must use a public IP address on the Expressway-C.

D.They must be in the same subnet.

AnswerA

The 'Unified Communications' traversal zone is mandatory for Hybrid Call Service interworking.

Why this answer

The Expressway pair must be registered with the Webex cloud to enable the connector, and specific traversal zones must be configured to pass the signaling traffic.

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MCQmedium

In a Webex hybrid environment, what is the primary role of the Expressway-C?

A.To manage public DNS records

B.To act as a SIP proxy for internal phones

C.To provide a secure connector for Hybrid Services

D.To replace the CUCM server

AnswerC

It facilitates the connection between internal services and the cloud.

Why this answer

The Expressway-C acts as the secure on-premises gateway that connects to the Webex cloud, handling signaling and media traversal.

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