In the queuing system below, Stream 1, Stream 2 and Stream 3 are Poisson arrivals. The packet sizes for Stream 1 and Stream 2 are exponentially distributed with an average of 1000 bits/packet. Stream 3 has fixed size packets with a size of 1000bits. Given information: The average number of packets in System 4 is 4. All queues have infinite capacity. No packets are dropped. Queuel C1-100Kbps Queue3 C3 150Kbps C4-100Kbps Queue2 425p/s Stream 2 2-Sp's Stream 3 C2 50Kbps System EE444 a) What kind of does S have in X/XX notation? State all that you use. b) What is the ility that server is at a time? c) What is the a of in d) What kind of queuing does 4 have in X/X/X notation? e What is the a of a s on Stream 1 in E444