CLCOR Cloud And Hybrid Services Practice Test 5 — 15 Questions

Question 1

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

Accepted Answer

To host the connectors that communicate with the Webex cloud.. The Expressway-C (Concentrator) cluster sits inside the enterprise network and hosts the various connectors (e.g., Calendar Connector, Call Connector, Management Connector, and the edge traversal pair) that establish secure outbound connections to the Webex cloud. It acts as the trusted on-premises endpoint that brokers hybrid service traffic between internal resources like CUCM, Exchange, and the Webex cloud.

Answer

To act as a firewall for all enterprise traffic.

Answer

To store all user messages on-premises.

Answer

To manage public DNS records for the organization.

Question 2

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?

Accepted Answer

Webex browser extension.. Click-to-Call from a browser requires the Webex browser extension, which registers a URI handler (such as tel: or webex:) so the browser can hand off the click to the Webex App for call initiation. Without the extension, the browser has no mechanism to invoke the Webex App's dialer from a web page. The extension is available for Chrome, Edge, and Firefox and must be installed and enabled per user profile.

Answer

The Hybrid Calendar connector.

Answer

A local PSTN gateway.

Answer

Cisco Jabber for Windows.

Question 3

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

Accepted Answer

Location Settings.. In Webex Calling, emergency addresses are defined at the Location level in Control Hub. Each location has an associated emergency address that is used for emergency calls (e.g., 911). User profiles, device settings, and organization settings do not directly define emergency addresses; they inherit from the location. The correct answer is D.

Answer

User Profile Settings.

Answer

Device Settings.

Answer

Organization Settings.

Question 4

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

Accepted Answer

To read directory objects for synchronization.. The Webex Service account in Active Directory is used by Directory Connector to read (bind and query) directory objects such as users, groups, and attributes for synchronization to Webex. It requires read permissions on the directory partitions being synced. This service account is the identity Directory Connector uses to authenticate to AD and pull the data needed for user provisioning.

Answer

To encrypt the synchronization traffic.

Answer

To manage the user's email password.

Answer

To bypass the firewall.

Question 5

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

Accepted Answer

Hybrid Presence Service.. Hybrid Presence Service (also known as Webex Hybrid Presence) allows Webex users to see the presence status of on-premises Jabber users by connecting the on-premises IM and Presence Service to Webex. The service synchronizes presence between the on-premises Cisco IM and Presence cluster and Webex, so a Webex user can see whether a Jabber user is available, busy, or away. This is the specific service designed for cross-presence visibility.

Answer

Hybrid Calendar Service.

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Webex Calling.

Answer

Directory Connector.

Question 6

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

Accepted Answer

The account is deactivated in Webex.. When Webex Directory Synchronization is configured with Active Directory, the sync engine continuously reconciles Webex Control Hub users against the AD source of truth. If a user is removed from the synchronized AD group, the next sync cycle detects that the user is no longer in scope and deactivates the corresponding Webex account. Deactivation preserves the user's data (messages, files, settings) but blocks sign-in and license consumption until the account is either re-synced or manually reactivated.

Answer

The account remains active indefinitely.

Answer

The account is moved to a guest group.

Answer

The account becomes a free account.

Question 7

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

Accepted Answer

It optimizes the quality and reliability of Webex traffic.. Webex Edge is a set of hybrid options that let enterprises leverage their existing on-premises infrastructure and network to improve the quality, reliability, and manageability of Webex traffic. By peering Webex traffic through the customer's own network or dedicated connections rather than the public internet, latency and jitter are reduced, and the customer gains visibility and control. It does not replace the Webex cloud — it optimizes how traffic reaches it.

Answer

It allows you to use your own cloud hosting.

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It removes the need for user authentication.

Answer

It eliminates the need for internet access.

Question 8

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

Accepted Answer

A Cisco Unified Border Element (CUBE).. In a Cisco Local Gateway (LGW) deployment for Webex Calling, the Local Gateway itself is implemented on a Cisco Unified Border Element (CUBE), which provides the SIP normalization, media handling, and session border control between the enterprise voice network and Webex Calling — so option B is required. The Local Gateway must also be reachable over a SIP trunk that connects it to Webex Calling, since the LGW registers with and routes calls to the Webex Calling cloud via that SIP trunk, making option C required. Option A is not required because the Local Gateway does not depend on an on-premises Active Directory server; identity and user management reside in Webex Control Hub. Option D is not required because any supported internet connection with adequate bandwidth and QoS can carry the SIP trunk, not specifically dedicated fiber. Option E is not required because the Local Gateway connects to Webex Calling for PSTN, not to a separate cloud-based PSTN provider.

Answer

An on-premises Active Directory server.

Answer

A dedicated fiber-optic internet connection.

Answer

A cloud-based PSTN provider.

Question 9

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

Accepted Answer

Active Directory service account privileges.. During the Webex Hybrid Service connector installation, the installer validates the Active Directory service account privileges (B) because the connector needs a properly privileged AD account to sync users and groups to the Webex cloud. It also verifies the outbound HTTPS connection to the cloud (D), since the connector must reach Webex services over TCP 443 for registration and ongoing communication. The SSL/TLS certificate trust chain (E) is checked as well, ensuring the connector trusts the cloud endpoint's certificate and can establish secure TLS sessions. The local PBX manufacturer (A) is not verified by the connector installer, as it is irrelevant to connector prerequisites, and the user's home network speed (C) is not tested because the connector is a server-side component whose bandwidth requirements are not validated during installation.

Answer

The local PBX manufacturer.

Answer

User's home network speed.

Question 10

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

Accepted Answer

Local Gateway.. Webex Calling supports two valid PSTN connectivity deployment models: Local Gateway (C) and Cloud Connected PSTN (E). Local Gateway is correct because it uses an on-premises gateway (such as a Cisco IOS XE router or CUBE) registered to Webex Calling via the Local Gateway registration process, allowing the enterprise to connect its own PSTN trunks to the Webex Calling cloud. Cloud Connected PSTN (CCP) is correct because it lets a certified CCP provider deliver PSTN service directly to Webex Calling through the Cisco Cloud Connectivity platform, with no on-premises gateway required. The remaining options are not valid Webex Calling PSTN deployment models: 'Webex Calling dedicated ISP' (A) is not a recognized model, 'Hybrid Cloud PSTN' (B) is not a Webex Calling PSTN option (hybrid refers to other deployment aspects), and 'Peer-to-Peer PSTN' (D) is not a supported architecture for Webex Calling PSTN connectivity.

Answer

Webex Calling dedicated ISP.

Answer

Hybrid Cloud PSTN.

Answer

Peer-to-Peer PSTN.

Question 11

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?

Accepted Answer

CSV Template upload in Control Hub. The CSV template upload in Control Hub is the supported bulk onboarding method for migrating users to Webex Calling while preserving directory synchronization. You export user data (often from Active Directory or CUCM), populate the Webex-provided CSV template with required fields, and upload it to Control Hub, which provisions users and links them to the existing directory sync (e.g., via Microsoft Entra ID or Cisco Directory Connector). This maintains identity consistency across the migration.

Answer

Webex Edge for Devices

Answer

CUCM AXL API bulk exporter

Answer

Webex Migration Tool

Question 12

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?

Accepted Answer

Outbound TLS connection from CUBE to Webex Cloud. Webex Calling uses a persistent outbound TLS connection from the on-premises CUBE (Customer Edge) to the Webex Cloud. This connection is initiated from the enterprise side, typically over TCP port 8934 (or 443 for some services), and is kept alive with keepalives. Because the connection is outbound, no inbound firewall ports need to be opened, and the cloud can send messages back over the established TLS session. This design is fundamental to Webex Calling's cloud-to-edge architecture, ensuring secure and NAT-friendly connectivity.

Answer

Webex Calling Connector via port forwarding

Answer

SIP Trunk over VPN

Answer

H.323 Gatekeeper registration

Question 13

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?

Accepted Answer

The user's Exchange mailbox is not assigned to the Hybrid Calendar service. The 'Join' button on Webex Room devices for scheduled meetings is provided by the Hybrid Calendar Service, which requires the user's Exchange mailbox to be assigned to the service. If the mailbox is not assigned, the device cannot retrieve calendar information, and the Join button will not appear.

Answer

The Webex site is not integrated with the Control Hub

Answer

The Room device has not been registered to Webex

Answer

The Expressway-C does not have a public certificate

Question 14

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

Accepted Answer

Cloud Connected PSTN (CCP). Cloud Connected PSTN (CCP) lets an organization bring its own PSTN carrier into Webex Calling by peering the carrier's network with the Webex Calling cloud, so existing carrier contracts, rates, and DIDs are preserved. This is the deployment model explicitly designed for 'use my existing carrier' scenarios, as opposed to Cisco-provided PSTN or on-premises gateways. The carrier must be a Webex Calling CCP partner.

Answer

Local Gateway PSTN

Answer

Webex Calling PSTN via Cisco

Answer

Webex Calling Dedicated Instance

Question 15

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

Accepted Answer

To allow the enterprise to maintain control over encryption keys. In Webex Hybrid Data Security (HDS), the Key Management Service (KMS) is a customer-deployed component that stores and manages the encryption keys used to encrypt Webex content (messages, files, whiteboards). Its core purpose is to give the enterprise sole control over those keys, so Cisco cannot decrypt the content — this is the 'hybrid' data security promise. Thus, the correct answer is that KMS allows the enterprise to maintain control over encryption keys.

Answer

To authenticate users against local Active Directory

Answer

To facilitate the storage of encrypted meeting recordings

Answer

To manage SIP signaling encryption