During the implement phase， systems acceptance testing provides which two of the following services for the customer（）
- AIt installs， configures， and verifies monitoring tools and processes in accordance with the operations implementation.
- BIt verifies that the Cisco Unified Communications solutions is ready for production.
- CIt verifies that the Cisco Unified Communications solution meets their business and technical requirements.
- DIt executes and verifies the migration plan by migrating network services from an existing state to a future state.
- EIt provides automated tools for measuring system performance under load.