What can GPOs be associated with?

Group Policy Objects (GPOs) are a powerful feature used in Windows Server environments to manage user and computer settings across an organization. The correct answer highlights that GPOs can be associated with multiple Active Directory containers, including sites and domains.

This capability allows administrators to apply policies broadly or specifically, depending on the organizational needs. For instance, a GPO can be linked to a domain to apply settings to all users and computers within that domain, or it can be linked to specific Organizational Units (OUs) to target particular groups of users or computers. Additionally, GPOs can even be applied at the site level, which encompasses all OUs within that geographical or logical boundary.

This flexibility is a key advantage of GPOs as it enables tailored policy management across various segments of an organization's IT infrastructure, making it easier to enforce security settings, software installations, and other configurations consistently.

While other options mention specific containers, like individual user accounts or only OUs, they don't capture the broader applicability of GPOs across sites and domains, which is fundamental to their effective use in system administration.