Why is big bandwidth delay product (BDP) bad for CSMA/CD? Answer: Big BDP means small frames, compared with long links. It implies low link efficiency when other stations keep idle, as a small frame...

Why is big bandwidth delay product (BDP) bad for CSMA/CD?

Answer:

Big BDP means small frames, compared with long links. It implies low link efficiency when other stations keep idle, as a small frame propagates through a long link.

What is the minimum frame length, in meters, when transmitted in Gigabit Ethernet?

Answer: 64 × 8 / 10⁹
× 2 × 10⁸
= 25.6 meters.