1. A pure ALOHA network transmits 400-bit frames on a shared channel of 400 kbps. What is average frame transmission time andvulnerable time for Pure ALOHA? What is the requirement to make this frame collision-free?

2. A network with bandwidth of 30 Mbps can pass only an average of 3000 frames per second with each frame carrying an average of 5000 bits. What is the throughput of this network? Also explain difference between throughput and bandwidth.

*use SM format