What practice can assist in managing resource access effectively in cloud environments?

Access control lists (ACLs) are fundamental tools used to manage resource access in cloud environments effectively. They define permissions and dictate which users or systems can interact with specific resources under what conditions. By specifying allowed or denied actions for individual users, groups, or systems, ACLs help maintain a robust security posture by ensuring that only authorized entities have the appropriate level of access to cloud resources.

In cloud environments, where resources can be highly dynamic and distributed, using access control lists allows for precise access management. This granularity is essential for compliance with security policies and regulations, ensuring that sensitive data and critical services are protected from unauthorized access.

While other options, such as group tagging, identification standards, and data retention policies, contribute to an overall resource management strategy, they do not directly focus on the specific control of access to resources. Group tagging is more about organizing resources for management, identification standards provide frameworks for recognizing and authenticating users, and data retention policies govern how long data should be stored. However, AACs specifically address how and who can access resources, making them the most effective practice for managing resource access in cloud environments.