Which statement describes the external database requirement for the Cisco IM and Presence permanent group chat feature?
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A. B. C. D. E.D.
When you configure an external database entry on IM and Presence, you assign the external database to a node, or nodes, in your cluster as follows: -> For the Compliance feature, you require at least one external database per cluster.
Depending on your deployment requirements, you can also configure a separate external database per node.
-> For the Permanent Group Chat feature, you require a unique external database per node.
Configure and assign a unique external database for each node in your cluster.
-> If you deploy both the Permanent Group Chat and Compliance features on an IM and Presence node, you can assign the same external database to both features.
The permanent group chat feature in Cisco IM and Presence allows users to create and participate in persistent chat rooms. These chat rooms can be accessed even if the user logs out or the server restarts. An external database is required to store the chat room data in a centralized location.
Answer A states that all nodes in a Cisco IM and Presence cluster can share a physical external database. This is not accurate as sharing a physical database among multiple nodes in a cluster can cause data inconsistencies and other issues. Therefore, Answer A is incorrect.
Answer B states that all nodes in a Cisco IM and Presence cluster can share a logical external database. This is the correct answer as a logical external database allows for centralized data storage while ensuring data consistency and avoiding issues that may arise from sharing a physical database. Therefore, Answer B is the correct answer.
Answer C states that each node in a Cisco IM and Presence cluster must have its own physical external database. This is not accurate as sharing a physical database among multiple nodes in a cluster can cause data inconsistencies and other issues. Therefore, Answer C is incorrect.
Answer D states that each node in a Cisco IM and Presence cluster must have its own logical external database. This is not an efficient solution as it can lead to data duplication and synchronization issues. Therefore, Answer D is incorrect.
Answer E states that an external database is not mandatory. This is not accurate as an external database is required to store the chat room data in a centralized location. Therefore, Answer E is incorrect.
In summary, the correct answer is B. All nodes in a Cisco IM and Presence cluster can share a logical external database.