Which option lists the three main elements of a broadband cable network?

Which option lists the three main elements of a broadband cable network?

• A. Headend; Distribution network; Drop at the customer's premise
• B. Headend; Hub; User Terminal
• C. Controller; Backbone; Access Line
• D. Gateway; Distribution Plant; Customer Premises

Answer: (A)

The main idea here is the three-stage layout of a broadband cable network: where signals are generated and managed, how they’re carried to neighborhoods, and how they’re handed off to the customer. The headend is the central facility where signals are originated, modulated, encrypted, and routed for distribution. The distribution network carries those signals from the headend out toward neighborhoods, using coaxial cables, fiber, amplifiers, and nodes. The drop at the customer’s premises is the final link that connects the distribution network to the subscriber’s home or business, delivering the service to the customer’s equipment. This combination—headend, distribution network, and drop to the customer premises—captures the essential structure of a cable broadband system. The other options mix terms that don’t fit this three-part framework and refer to different parts of telecom networks, such as hubs, controllers, backbones, or consumer devices, which aren’t the standard three elements used to describe a broadband cable network.

The main idea here is the three-stage layout of a broadband cable network: where signals are generated and managed, how they’re carried to neighborhoods, and how they’re handed off to the customer. The headend is the central facility where signals are originated, modulated, encrypted, and routed for distribution. The distribution network carries those signals from the headend out toward neighborhoods, using coaxial cables, fiber, amplifiers, and nodes. The drop at the customer’s premises is the final link that connects the distribution network to the subscriber’s home or business, delivering the service to the customer’s equipment.

This combination—headend, distribution network, and drop to the customer premises—captures the essential structure of a cable broadband system. The other options mix terms that don’t fit this three-part framework and refer to different parts of telecom networks, such as hubs, controllers, backbones, or consumer devices, which aren’t the standard three elements used to describe a broadband cable network.