Which deployment method involves servers installed in a closet?

The correct deployment method that involves servers installed in a closet is tower deployment. This approach typically uses standalone server units that resemble traditional desktop computers and can be configured and stacked in various ways, making them suitable for small business environments or limited IT spaces, such as closets or small rooms. Tower servers are often used for specific applications or workloads that do not require extensive server resources or where space is limited.

In contrast, rack deployment involves servers mounted in standardized racks or cabinets, which allows for higher density and easier management of multiple servers but is not suited for closet installations unless the closet is appropriately outfitted for racks. Blade deployment focuses on high-density server setups that share resources and space in a blade chassis, which is typically housed in larger server rooms or data centers, not in small closets. Lastly, virtual deployment refers to the use of virtualization technology to run multiple virtual machines on a single physical server, which does not pertain to the physical installation of servers in a closet.