Which site provides a building and network equipment but lacks current application data?

The correct answer is the cold site. A cold site is a backup location that has the necessary hardware and infrastructure in place to support operations in the event of a disaster, but it does not contain current application data or the latest live operational data. This means that while the physical space and equipment are ready and operational, actual data must be restored to begin operations, which can lead to longer recovery times.

In contrast, a hot site is fully equipped with up-to-date data and can maintain operations immediately with minimal downtime. A warm site strikes a balance, providing a partially equipped setup that may include some application data, allowing for a faster recovery than a cold site, but not as immediate as a hot site. The term disaster recovery site can refer to any location set up to recover from an incident, but it doesn't specify the state or readiness of the data. Thus, identifying cold sites as lacking current application data effectively describes their characteristics.