The purpose of this question is to analyze your technical skills as it questions a tool used in enterprise architecture design. You can expect such questions at an advanced TOGAF interview, so be mindful to describe the tools in aspects like why and how they are used. You can start your response by defining the architecture repository, "The architecture repository is a key software tool in EA that stores all the architectural inputs and outputs used in each phase and the architecture itself." Then add the benefits to your answer, "It aids users in the organization, storage, searching, sharing, and security of the strategies and architecture produced during the transformation process." You can also elaborate on the core components of the repository. The essential components of an architecture repository include architecture and solutions landscape, architecture metamodel, reference library, etc.