CLCOR Cloud And Hybrid Services — 20 Questions

Question 1

When setting up Cloud Connected PSTN (CCP), which TWO configurations must be validated on the Webex Control Hub?

Accepted Answer

PSTN Provider selection. CCP requires selecting a provider and configuring the phone number inventory.

Answer

Identity provider synchronization

Answer

Expressway-E cluster configuration

Answer

Hybrid Media Node assignment

Question 2

A customer wants to migrate their legacy PSTN numbers to Webex Calling. They want to maintain their existing service provider but route calls through the cloud. Which option is best suited for this?

Accepted Answer

Cloud Connected PSTN (CCP). Cloud Connected PSTN (CCP) allows customers to use their existing PSTN provider to provide numbers and connectivity directly to the Webex Calling cloud.

Answer

Webex Calling Local Gateway

Answer

Cisco Unified Communications Manager (CUCM) SIP Trunking

Answer

Webex Edge Audio

Question 3

Which TWO of the following are benefits of using the Webex Hybrid Data Security (HDS) service? (Choose two)

Accepted Answer

It allows the customer to manage their own encryption keys.. HDS provides organizations with control over their encryption keys and ensures that sensitive metadata remains stored on-premises rather than in the public cloud.

Answer

It eliminates the need for user authentication.

Answer

It provides faster internet speeds for users.

Answer

It provides automatic PBX integration.

Question 4

Which service allows a user to access Webex Meeting features from a standards-based SIP video endpoint?

Accepted Answer

Hybrid Video Mesh. Webex Hybrid Video Mesh or the SIP Registration service allows SIP endpoints to join Webex meetings seamlessly.

Answer

Webex Calling

Answer

Hybrid Calendar Service

Answer

Hybrid Directory Service

Question 5

Which of the following is a prerequisite for deploying Webex Hybrid Data Security?

Accepted Answer

A minimum of three HDS nodes for high availability. Hybrid Data Security requires specific network connectivity and security infrastructure to ensure that the HDS nodes can communicate securely with the Webex cloud.

Answer

An on-premises CUCM cluster version 12.5 or higher

Answer

A Webex Calling Pro license

Answer

Direct fiber connection to a Webex data center

Question 6

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

Accepted Answer

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

Answer

Configure an H.323 gatekeeper

Answer

Enable Webex Meetings on the local CUCM

Answer

Disable Active Directory integration

Question 7

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?

Accepted Answer

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

Answer

Exchange EWS Connectivity Test

Answer

Control Hub Analytics Dashboard

Answer

Webex Calling Provisioning Report

Question 8

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?

Accepted Answer

Directory Sync with CUCM Integration. Directory synchronization and specific routing patterns allow for extension overlapping during a phased migration.

Answer

Hybrid Call Service Aware

Answer

Dial Plan with PSTN Failover

Answer

Migration Assistant Tool

Question 9

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?

Accepted Answer

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

Answer

Hybrid Media Node

Answer

Webex Calling Gateway

Answer

Webex Edge Node

Question 10

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

Answer

Cloud Connected PSTN Gateway

Answer

Webex Edge Connect Gateway

Answer

Virtual Gateway

Question 11

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

Answer

Webex Edge Connect

Answer

Webex Calling Cloud Connected PSTN

Answer

Unified Border Element (CUBE) API

Question 12

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?

Accepted Answer

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

Answer

Cloud Connected PSTN Gateway

Answer

Media Termination Point

Answer

H.323 Gatekeeper

Question 13

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.. 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.

Answer

Disable the firewall on the HDS node.

Answer

Restart the Cisco Webex Hybrid Services host.

Answer

Re-download the management certificate.

Question 14

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

Answer

Digest Authentication

Answer

Basic Authentication

Answer

Kerberos Constrained Delegation

Question 15

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

Accepted Answer

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

Answer

Devices > Management

Answer

Analytics > Reports

Answer

Users > Settings

Question 16

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?

Accepted Answer

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

Answer

The user is not assigned a Webex Calling license.

Answer

The Webex Hybrid Message Service is not running.

Answer

The Cisco Directory Connector has not synced the user object.

Question 17

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

Accepted Answer

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

Answer

netstat -anp

Answer

utils webex status

Answer

show services

Question 18

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

Accepted Answer

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

Answer

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

Answer

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

Answer

They must be in the same subnet.

Question 19

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

Accepted Answer

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

Answer

The firmware version of the desk phone.

Answer

The location of the user's home network.

Answer

The operating system of the device.

Question 20

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

Accepted Answer

To allow calling into Webex meetings via the corporate PSTN network.. Webex Edge Audio allows users to use their existing PSTN connectivity to join Webex meetings, reducing audio costs.

Answer

To allow users to join meetings without an internet connection.

Answer

To encrypt all meeting audio traffic.

Answer

To provide high-definition video conferencing.