MadeEasy test series

Question

The maximum length of the cable (in km) for transmitting data at a rate of 100 Mbps in ethernet LAN with frame size of 1000 bits (take signal speed as 2 × 10) is _______

Comments

is answer 1 km?

(considered speed = 2 x 10^8)

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Use

Tt  >= 2*Tp

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Yes the answer they gave is, Was that the mistake in the question?

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Yes,

At best the signals propagate (radiate) through free space at the speed of light (3 x 10^8 m/s). In contrast, the speed of propagation through twisted pair wire or coax is 2/3 of this value.