It's simple. Missing link is the connecting link which had been cut or extinct. The main example are extinct animal species.
An example I believe of relational context is when I was out with my son on the weekend (he has a developmental disability) and we had agree I would buy him a 1/2 sub sandwich the day before but then he said I would like a McFlurry so I said okay and then he said so you mean I can have a McFlurry and a sub and I thought oh oh I stuck my foot in it so I said but it must be only a 1/2 sub so he said no I want a full sub then and no mcflurry so I agreed so from the original 1/2 sub idea the idea evolved to a full sub which was affected by the warm sunny summery weather in the afternoon and seeing people lined up at ice cream shops so the idea developed in relation to the weather, how hungry he was and the social aspect people buying ice cream.
Answer:
a) 500 Kbps b) 64 sec c) 320 sec
Explanation:
a) We define the throughput of a network, as the actual maximum transmission rate that the network is able to deliver, which in this case is equal to the lowest transmission rate of any of the links that the traffic must go through:
R1 =500 kbps
b) If the file size is given in bytes, and we have the throughput in bps, we need to convert to bits first, as follows:
4*10⁶ bytes * (8 bits/byte) = 32*10⁶ bits.
The time needed to transfer the file, will be given by the quotient between the file size and the throughput, as follows:
t = 32*10⁶ bits / 500*10³ bits/sec = 64 sec
c) If the transmission rate R2 is reduced to 100 kbps, R2 becomes the lowest transmission rate in the network, so it becomes the new throughput.
So, the time needed for the same file to be transferred to host B is as follows:
t= 32*10⁶ bits / 100*10³ bits/sec = 320 sec
It should be under lined, when you press it it should have a different colour
