Which authentication methods does Splunk support?

Splunk supports multiple authentication methods to provide flexibility in user management and integration with existing systems. Among these methods, LDAP (Lightweight Directory Access Protocol) and Active Directory (AD) enable organizations to authenticate users against their directory services, which simplifies user management and enhances security. The option of local accounts allows for user authentication directly within Splunk itself, making it versatile for environments where directory services are not available.

Using LDAP and Active Directory facilitates better integration for organizations that have an existing user directory, allowing for centralized management of user credentials and roles. This supports scalability as organizations grow and need to manage more users securely. The inclusion of local accounts provides an alternative for smaller setups or instances where external directory integration is not feasible, ensuring that users can still be managed effectively.

Overall, option A accurately reflects the range of authentication methods that Splunk supports, making it the correct answer. Other options suggest limited authentication methods, which do not represent the comprehensive capabilities that Splunk provides for managing user access.