Which of the following best describes a policy repository?

Last Updated on August 3, 2021 by Admin 2

Which of the following best describes a policy repository?

  • a controller for distributing, tracking, and updating policies
  • collection of endpoints with identical requirements
  • a collection of rules applied to endpoints, existing or hypothetical
  • a collection of endpoints already known to the Cisco ACI
Explanation:

Of the available choices, a policy repository can be best described as a collection of rules applied to endpoints, existing or hypothetical. A policy repository is the first of two logically coupled components of an endpoint policy; it is typically centralized in the Cisco Application Policy Infrastructure Controller (APIC) or in leaf nodes in the Application Centric Infrastructure (ACI) fabric. The policy repository component of an endpoint policy stores rules that can be applied to existing endpoints, planned endpoints, or deleted endpoints. Endpoint policies are used to define how endpoint groups (EPGs) communicate with each other.
An endpoint registry is a collection of endpoints already known to the Cisco ACI. The endpoint registry is the second of two logically coupled components of an endpoint policy; it stores the operational state of each endpoint. In Cisco ACI, the endpoint registry is stored in a distributed database within the ACI fabric.
An EPG is a collection of endpoints with identical requirements; it is a primary element of a tenant. EPGs are logical groupings of endpoints that provide the same application or components of an application. For example, a collection of Hypertext Transfer Protocol Secure (HTTPS) servers could be logically grouped into an EPG labeled WEB. EPGs are typically collected within application profiles. EPGs can communicate with other EPGs by using contracts.
The Cisco APIC is a controller for distributing, tracking, and updating policies. In other words, it is a central component of a Cisco ACI fabric that is used for both automation and management.

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