Which statement is true about Plain Old Telephone Service (POTS)?

Plain Old Telephone Service (POTS) is based on circuit switching technology, which establishes a dedicated communication path between the caller and the receiver for the duration of the call. This means that once a call is initiated, a continuous circuit is maintained until the call is terminated, allowing for real-time voice communication without delays that are typical of packet-switched networks.

POTS traditionally utilizes analog signaling over copper twisted pair lines, which has been the standard for basic telephone service for many years. This technology is distinct from packet switching, where data is broken into packets and transmitted over shared networks, often used in modern digital communications, including VoIP and internet-based services.

The other options do not accurately represent POTS. While fiber optics is a modern transmission medium providing higher-speed internet and phone services, POTS does not require fiber and primarily operates over copper lines. POTS is also not limited to urban areas; it has been widely available in both rural and urban settings for decades, despite varying service quality based on location.