A modern switching technology that offers an economical way for telecommunications service customers in distant locations.

A modern switching technology that offers an economical way for telecommunications service customers in distant locations.

• A. Stand-alone switch
• B. Selective router
• C. Host/Remote
• D. 911 Direct Trunking

Answer: (C)

The concept tested is using a central switching arrangement that keeps most of the processing core in one place while extending local service to distant locations. In a host/remote setup, there’s a central host switch that handles the heavy lifting—call control, features, and databases—and one or more remote switches placed near customers to handle local call processing and access. The remote switches connect to the host over dedicated links, so distant communities can get full service without installing a complete, feature-rich switch at every location. This is economical because you reduce the number of expensive, high-capacity switches that must be deployed and maintained in far-flung areas. Instead, you deploy smaller remote gear for local access and rely on the central host for the core functions, making upgrades and maintenance more centralized and cost-effective. Other options don’t fit this purpose as well. A stand-alone switch would require a complete, feature-rich switch at each remote site, driving up capital and maintenance costs. A selective router is about routing paths in a network rather than providing a centralized switching economy for distant customers. 911 Direct Trunking pertains to direct trunk connections for emergency calls, not to the general approach of economical switching for distant locations.

The concept tested is using a central switching arrangement that keeps most of the processing core in one place while extending local service to distant locations. In a host/remote setup, there’s a central host switch that handles the heavy lifting—call control, features, and databases—and one or more remote switches placed near customers to handle local call processing and access. The remote switches connect to the host over dedicated links, so distant communities can get full service without installing a complete, feature-rich switch at every location.

This is economical because you reduce the number of expensive, high-capacity switches that must be deployed and maintained in far-flung areas. Instead, you deploy smaller remote gear for local access and rely on the central host for the core functions, making upgrades and maintenance more centralized and cost-effective.

Other options don’t fit this purpose as well. A stand-alone switch would require a complete, feature-rich switch at each remote site, driving up capital and maintenance costs. A selective router is about routing paths in a network rather than providing a centralized switching economy for distant customers. 911 Direct Trunking pertains to direct trunk connections for emergency calls, not to the general approach of economical switching for distant locations.