An automatic telephone switch has which of the following?

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Multiple Choice

An automatic telephone switch has which of the following?

An automatic telephone switch relies on three interconnected parts to process calls: memory, service logic, and a controller. Memory stores the data and programs the switch uses, such as digit maps, subscriber data, and routing tables. Service logic defines how calls are handled—the rules for setup, routing, features, billing, and tear-down. The controller runs the service logic and directly drives the hardware that actually connects or disconnects call paths, controls signaling, and manages timing and control of switching fabrics. Together, these components enable the switch to interpret dialing, decide where to route the call, and physically establish the path through the switching network. A switch wouldn’t function with only one of these parts; memory provides the data and instructions, service logic provides the operational rules, and the controller executes those rules and manages the hardware. That’s why all of the above is the correct choice.

An automatic telephone switch relies on three interconnected parts to process calls: memory, service logic, and a controller. Memory stores the data and programs the switch uses, such as digit maps, subscriber data, and routing tables. Service logic defines how calls are handled—the rules for setup, routing, features, billing, and tear-down. The controller runs the service logic and directly drives the hardware that actually connects or disconnects call paths, controls signaling, and manages timing and control of switching fabrics.

Together, these components enable the switch to interpret dialing, decide where to route the call, and physically establish the path through the switching network. A switch wouldn’t function with only one of these parts; memory provides the data and instructions, service logic provides the operational rules, and the controller executes those rules and manages the hardware. That’s why all of the above is the correct choice.

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