Which component of the Architecture Repository contains approved standards and guidelines for architectures?

The component of the Architecture Repository that contains approved standards and guidelines for architectures is the Standards Information Base. This is a critical part of TOGAF as it provides a central location for all architectural standards, guidelines, and templates that have been agreed upon and approved for use within the organization.

The Standards Information Base serves as a reference point for architects and stakeholders to ensure consistency and alignment with established protocols and best practices. It helps in maintaining the integrity of the architecture by ensuring that all implemented solutions adhere to the organization's standards.

The other components mentioned play different roles within the Architecture Repository. For instance, the Governance Log is used to track decisions and commitments, while the Reference Library serves as a collection of reusable architecture artifacts. The Architecture Landscape provides a view of the various architecture domains and their relationships, but it does not specifically focus on approved standards and guidelines.