Multiple choice

A traditional telephone line has a bandwidth of _________.

  1. 2000Hz

  2. 2000MHz

  3. 4000Hz

  4. 4000MHz

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Traditional telephone lines (POTS) use a 4 kHz voice-grade channel. The standard range is approximately 300 Hz to 3.4 kHz, requiring about 4 kHz of bandwidth to transmit voice signals with adequate quality.