You are designed a link layer protocol for a link with bandwidth of 1 Gbps (109 bits/second) over a fibre link with length of 800 km. Assume the speed of light in this medium is 200000 km/second. What is the propagation delay in this link?
1
1 millisecond
2
2 millisecond
3
3 millisecond
4
4 millisecond