a$.$ Now assume weighted fair queuing $($WFQ$)$ service. Assume that odd numbered packets are from class $1,$ and even$-$numbered packets are from class $2.$ Class $1$ has a WFQ weight of $2,$ while class $2$ has a WFQ weight of $1.$ Note that it may not be possible to achieve an idealized WFQ schedule as described in the text, so indicate why you have chosen the particular packet to go into service at each time slot. For each packet what is the delay between its arrival and its departure? What is the average delay over all $12$ packets?