Which of the following contains properties common to all certificates issued by the Cisco ISE CA service?

The correctness of the answer revolves around the function that certificate templates serve within the context of the Cisco Identity Services Engine (ISE).

A certificate template defines a standardized set of parameters that apply to certificates issued by a Certificate Authority (CA). These parameters include attributes like key length, validity period, and the specifics of the subject name. This ensures consistency across all issued certificates, making it easier to manage and deploy them in a network environment. When the Cisco ISE CA service issues certificates based on a template, it automatically incorporates these common properties, thereby streamlining the process of certificate creation and ensuring compliance with organizational policies.

In contrast, authentication profiles, AD joinpoints, and certificate profiles have distinct purposes. An authentication profile is used for managing authentication methods and settings, making it specific to how users are authenticated. An AD joinpoint is connected to Active Directory, focusing on integrating user authentication information within the ISE environment. A certificate profile, while related to certificates, pertains to defining the attributes and settings for specific types of certificates rather than serving as a unified standard across all certificates issued by the CA service.

Therefore, the choice of certificate template is fundamentally aligned with the requirement of having common properties that govern the characteristics of all certificates issued in this scenario.