Government agencies currently operate their own websites, each with its own directory services. There is a mandate to minimize IT administration. Which of the following should the cloud services archi

Establishing VPN tunnels between sites improves network connectivity but does not consolidate or reduce the administrative burden of managing separate directory services at each agency.

Upgrading systems to mobile technologies is unrelated to the administration of identity directories and does not address the mandate to minimize IT management overhead.

Upgrading web server operating systems is a routine maintenance activity that has no impact on the number of separate directory services requiring ongoing IT administration.

Reengineering the identification and authorization process - for example by implementing federated identity management or a centralized SSO solution - replaces the redundant per-agency directory services with a unified identity framework. This directly addresses the mandate to minimize IT administration by reducing the number of separate directories, user accounts, and access control policies that administrators must maintain across all government websites.