Multiple choice technology

What is the data rate for a Single Phone Line.

  1. 56kbps

  2. 64kbps

  3. 80kbps

  4. 144kbps
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A standard single phone line (POTS - Plain Old Telephone Service) uses digital signaling at 64 kbps, which is the standard PCM (Pulse Code Modulation) rate for digitizing voice. This rate comes from sampling 8000 times per second at 8 bits per sample (8000 × 8 = 64000 bps). The 56 kbps option refers to modem speeds over telephone lines, not the line itself.

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