CLCOR Cloud And Hybrid Services Practice Test 3 — 15 Questions

Question 1

A company is deploying Webex Hybrid Message Service to integrate on-premises Cisco Unity Connection with Webex. The administrator has installed the Expressway-C and Expressway-E and configured the Hybrid Message Connector. Which TWO of the following are required for the Hybrid Message Service to function correctly? (Choose two.)

Choose an answer to begin — your selection is scored in the full session.

Accepted Answer

The Expressway-C must be able to reach the Webex cloud over HTTPS (TCP 443).. For Webex Hybrid Message Service, the Expressway-C must have outbound HTTPS connectivity to the Webex cloud to register the connector, and it must be able to reach Cisco Unity Connection over the network to retrieve voicemail messages. These two connectivity requirements are essential for the service to operate. Other options, such as public IP on Expressway-E or domain membership, are not required for this specific service.

Answer

The Expressway-C must be joined to the same Active Directory domain as Cisco Unity Connection.

Answer

Cisco Unity Connection must be configured with a Unified Messaging account that has Application Impersonation rights.

Answer

The Expressway-E must have a public IP address and be reachable from the internet.

Question 2

A company is deploying Webex Hybrid Calendar Service to integrate their on-premises Microsoft Exchange 2019 with Webex. They want to ensure that meetings scheduled in Outlook automatically appear on Webex devices. Which two components are required for this integration? (Choose two.)

Accepted Answer

Microsoft Exchange Web Services (EWS) enabled. The Expressway-C connector and Exchange Web Services (EWS) are required for Webex Hybrid Calendar Service with on-premises Exchange. The Expressway-C provides the secure tunnel to Webex, and EWS allows the connector to access and modify calendar data. Without both, the service cannot function, as the cloud needs to read and write calendar events.

Answer

Cisco Unified Communications Manager IM and Presence Service

Answer

Expressway-E

Answer

Webex Hybrid Data Security

Question 3

A collaboration engineer is deploying Cisco Webex Edge Audio for an enterprise that has an existing Cisco Unified Border Element (CUBE) registered to Cisco Unified Communications Manager. The requirement is to allow Webex meetings to use the on-premises PSTN gateway for dial-in and call-me access. Which configuration step is essential on the CUBE to enable this integration?

Accepted Answer

Configure a SIP trunk on CUCM pointing to the Webex Edge Audio service, and on CUBE create dial peers that route calls to the Webex cloud SIP addresses.. Webex Edge Audio connects Webex meetings to on-premises PSTN via a SIP trunk from CUCM to CUBE and dial peers on CUBE that route calls to Webex cloud SIP addresses. This setup allows Webex to use the enterprise's PSTN gateway for dial-in and call-me. The CUBE must also be configured with the correct SIP profiles and certificates for secure communication.

Answer

Configure CUBE to use MGCP with CUCM, and set the Webex Edge Audio SIP domain as an MGCP endpoint.

Answer

Enable H.323 on CUBE and configure a gatekeeper to resolve Webex Edge Audio SIP URIs.

Answer

Configure SIP TLS and SRTP between CUBE and Webex Edge Audio, and enable the 'Webex Edge Audio' option on the SIP profile.

Question 4

A company has deployed Webex Hybrid Calendar Service with Exchange 2019 on-premises. Users report that their Webex meetings are not appearing on their calendar and that the meeting join links are missing. The administrator has verified that the connector is running and that the service account has impersonation rights. Which additional requirement must be met for the Hybrid Calendar Service to function correctly?

Accepted Answer

The Expressway-C connector must be configured with a valid certificate trusted by Exchange.. The Hybrid Calendar Service connector on Expressway-C must establish a secure HTTPS connection to Exchange Web Services. If Exchange does not trust the certificate presented by Expressway-C, the connection fails, and calendar operations such as creating meetings or adding join links do not occur. Ensuring that the Expressway-C certificate is trusted by Exchange is a critical step in the deployment.

Answer

The Exchange server must have the Webex Hybrid Calendar Service PowerShell module installed.

Answer

The Webex App must be configured to use the Hybrid Calendar Service in Control Hub.

Answer

The connector must be configured with the credentials of a user who has full mailbox access to all users.

Question 5

A collaboration engineer is planning to deploy Webex Hybrid Media Service to allow Webex meetings to use on-premises media resources for recording and transcoding. The engineer must ensure that all required components are in place and properly configured. Which two of the following are necessary components for the Hybrid Media Service architecture? (Choose two.)

Accepted Answer

Expressway-C and Expressway-E pair. Hybrid Media Service requires an Expressway-C and Expressway-E pair to provide secure connectivity between the Webex cloud and the on-premises network, and it requires at least one on-premises Hybrid Media Service node to perform media processing such as recording and transcoding. These two components together enable Webex meetings to use on-premises media resources.

Answer

Cisco Unified Communications Manager IM and Presence Service

Answer

Cisco TelePresence Content Server (TCS)

Answer

Cisco Meeting Server (CMS) with recorder and transcoder capabilities

Question 6

A collaboration engineer is deploying Webex Hybrid Message Service with on-premises Cisco Unified Communications Manager IM and Presence Service. The engineer needs to ensure that messages are stored on-premises for compliance. Which component is responsible for storing the messages?

Accepted Answer

Cisco Unified Communications Manager IM and Presence Service. The Cisco Unified Communications Manager IM and Presence Service is the component that stores messages in a Hybrid Message Service deployment. It archives messages on-premises, which is essential for compliance. The Expressway-C provides connectivity, but storage is handled by the IM and Presence database.

Answer

Expressway-C connector

Answer

Webex Control Hub

Answer

Webex Hybrid Data Security

Question 7

A company has deployed Cisco Webex Hybrid Video Mesh with two nodes in a cluster. During a meeting, some participants experience poor video quality, and the administrator notices that the media is not being routed through the Video Mesh nodes. Which troubleshooting step should be performed first?

Accepted Answer

Check the Webex site configuration to ensure that Video Mesh is enabled for the meeting type being used.. For Video Mesh to handle media, the Webex site must have Video Mesh enabled for the meeting type. If this setting is off, meetings will use the cloud instead of on-premises nodes. Verifying this configuration ensures that the service is active and media can be routed locally.

Answer

Verify that the Video Mesh nodes are registered and showing as 'Up' in Control Hub.

Answer

Increase the bandwidth of the internet connection at the site with the Video Mesh nodes.

Answer

Restart the Expressway-C to force media to route through the Video Mesh nodes.

Question 8

A collaboration engineer is deploying Webex Hybrid Call Service Connect to integrate an on-premises Cisco Unified Communications Manager environment with Webex. Users need to make calls from the Webex App that are anchored on-premises. Which component must be deployed in the enterprise network to enable this functionality?

Accepted Answer

Webex Hybrid Call Service Connect call anchor. Webex Hybrid Call Service Connect requires a call anchor component deployed on-premises to anchor calls between the Webex cloud and Unified CM. This call anchor registers with Unified CM and handles call signaling and media anchoring, allowing Webex App users to make and receive calls using the on-premises dial plan and PSTN gateways. Without the call anchor, calls cannot be anchored on-premises.

Answer

Webex Hybrid Call Service Connect connector

Answer

Cisco Unified Border Element (CUBE) with SIP trunk to Webex

Answer

Cisco Expressway-C and Expressway-E pair configured for Mobile and Remote Access

Question 9

An administrator is configuring Webex Hybrid Message Service to integrate on-premises Cisco Unity Connection with Webex for voicemail. Users need to access voicemail messages from the Webex App. Which component must be deployed and configured to enable this integration?

Accepted Answer

Webex Hybrid Message Service connector for Unity Connection. To integrate on-premises Cisco Unity Connection voicemail with Webex, the Webex Hybrid Message Service connector for Unity Connection must be deployed. This connector synchronizes voicemail messages from Unity Connection to the Webex App, enabling users to access voicemail from the app. It is a distinct component from the IM&P connector and requires specific configuration including Unity Connection server details and credentials.

Answer

Cisco Expressway-C with IM&P integration

Answer

Webex Hybrid Message Service connector

Answer

Cisco Unity Connection Webex Hybrid Message Service connector

Question 10

An administrator is deploying Webex Hybrid Message Service to integrate an on-premises Cisco IM and Presence server with Webex. The organization uses a single domain and wants to ensure that presence information is synchronized bidirectionally. Which component must be installed on-premises to enable this integration?

Accepted Answer

Webex Hybrid Message Service connector. The Webex Hybrid Message Service connector is the on-premises software that links Cisco IM and Presence with Webex. It enables presence synchronization and bidirectional messaging between on-premises users and Webex App users. The connector is installed on a Windows server and communicates with the Webex cloud, while the IM&P server itself remains on-premises. Without the connector, the integration cannot function.

Answer

Cisco Webex Meetings Server

Answer

Expressway-C and Expressway-E pair

Answer

Cisco Unified Communications Manager IM and Presence Service

Question 11

A company has deployed Webex Hybrid Calendar Service with an on-premises Microsoft Exchange 2019 environment. Users report that meetings created in Outlook do not show a 'Join' button on their Webex Room devices. The administrator has verified that the connector is up and the service is enabled. Which additional configuration is required to ensure that 'Join' buttons appear on the video devices?

Accepted Answer

Configure the video devices to use the Webex Hybrid Calendar Service by adding the device to a workspace and enabling the calendar service in Control Hub.. To display 'Join' buttons on Webex Room devices, the devices must be associated with a workspace in Control Hub, and the Hybrid Calendar Service must be enabled for that workspace. This allows the devices to receive meeting notifications and display the join option. While the connector and user enablement are necessary, the device-specific configuration is what completes the integration for video endpoints.

Answer

Publish the Exchange autodiscover service externally.

Answer

Enable Cisco Webex Hybrid Calendar Service for each user in Control Hub.

Answer

Install the Webex Hybrid Calendar Service connector on the Expressway-E server.

Question 12

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?

Accepted Answer

Local Gateway. Local Gateway is the correct answer because in Webex Calling, a Local Gateway is an on-premises CUBE (Cisco Unified Border Element) registered to Webex Control Hub that provides connectivity between Webex Calling and an existing on-premises PBX or PSTN. It is the specific gateway type designed for premises-based PSTN or PBX integration via CUBE. Registering the CUBE as a Local Gateway in Control Hub enables call routing between Webex Calling users and the on-premises PBX.

Answer

Cloud Connected PSTN Gateway

Answer

Webex Edge Connect Gateway

Answer

Virtual Gateway

Question 13

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?

Accepted Answer

SIP Trunk via Local Gateway. A SIP Trunk via Local Gateway must be configured because the Local Gateway (LGW) is the on-premises component that connects Webex Calling to the PSTN through a local SIP trunk, allowing migrated users to make and receive external calls. The LGW registers with Webex Calling and bridges cloud-registered endpoints to the on-premises PSTN provider. This is the required component for PSTN connectivity when using Local Gateway.

Answer

Webex Edge Connect

Answer

Webex Calling Cloud Connected PSTN

Answer

Unified Border Element (CUBE) API

Question 14

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?

Accepted Answer

Check the local log files in the HDS node using the CLI.. When HDS nodes do not appear in Control Hub, the first troubleshooting step is to check the local log files on the HDS node via the CLI. The logs will show whether the node successfully reached the Webex cloud, whether the registration token was accepted, and whether there are certificate or connectivity errors. This is the fastest way to identify the root cause before making configuration changes.

Answer

Disable the firewall on the HDS node.

Answer

Restart the Cisco Webex Hybrid Services host.

Answer

Re-download the management certificate.

Question 15

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?

Accepted Answer

OAuth 2.0. Cisco recommends OAuth 2.0 for Hybrid Calendar with Exchange 2019 because Microsoft has deprecated Basic Authentication for EWS and modern security baselines require token-based auth. OAuth 2.0 allows the Calendar Connector to authenticate via Microsoft Entra ID app registration without storing user credentials. This is the supported and future-proof method for Exchange 2019 deployments.

Answer

Digest Authentication

Answer

Basic Authentication

Answer

Kerberos Constrained Delegation