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:

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Explanation

The question requires categorizing Subject Alternative Name (SAN) field items based on their necessity for Cisco Expressway-E, Expressway-C, or both, testing knowledge of Cisco Collaboration certificate requirements.

Approach. The correct interaction involves dragging each SAN field item to the appropriate Expressway requirement category based on the function of Expressway-C (internal, UCM integration) and Expressway-E (external, MRA, federation) and common Cisco certificate best practices.

1. 'Cisco UCM registrations domains' and 'XMPP federation domains' are dragged to 'Required only on Expressway-E': Expressway-E is the edge component that handles Mobile and Remote Access (MRA) registrations with Cisco UCM and XMPP federation with external entities. Therefore, its certificate must include the domains involved in these external-facing services.

2. 'Expressway cluster name' and 'Cisco UCM phone security profile names' are dragged to 'Required only on Expressway-C': Expressway-C is the core component that integrates internally with Cisco Unified Communications Manager (UCM) and IM and Presence Service. The cluster name identifies the internal Expressway-C deployment, and items related to UCM configuration like 'phone security profile names' (likely referring to FQDNs or identifiers associated with UCM services for devices) are essential for its internal UCM interactions.

3. 'IM and Presence chat node aliases' is dragged to 'Required on Cisco Expressways': Both Expressway-C and Expressway-E play roles in facilitating IM and Presence services, with Expressway-C handling internal client connections and Expressway-E providing MRA and federation for IM and Presence. Therefore, aliases for IM and Presence nodes are typically required on certificates used by both components.

Common mistakes.

• common_mistake. A common mistake is confusing the roles and responsibilities of Expressway-C versus Expressway-E. For example, placing 'Cisco UCM registrations domains' under 'Required only on Expressway-C' would be incorrect because MRA registrations, which use these domains, are handled by Expressway-E. Similarly, misplacing 'Expressway cluster name' to Expressway-E would be wrong as it's primarily an internal identifier for the C-series. Another mistake is assuming a requirement is general (for both C and E) when it is specific to one, or vice-versa, indicating a lack of understanding of which services each Expressway component proxies or terminates.

Concept tested. Cisco Expressway certificate requirements, specifically the Subject Alternative Name (SAN) field entries needed for Expressway-C (Core/Connector) and Expressway-E (Edge) roles in a Cisco Collaboration deployment.

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