computer network

computer network

Intemet time is somewhat like the world's GPS system; they're judiciously spread out topologically around the Internet, but in key locations. Fro m among the few good candidates. DEnter Deep, or DBring Home? you pick a couple of close ones. Is this more like: 3. Delays Consider the following diagram: R2 There are four devices, and the timeline for each is shown below the device. Labels are in red. A packet begins transmission at A, travels across a network link shown by the line segment B and once it arrives at RI waits for time C before continuing its Answer the following questions: a. Which type of delay(s) is/are depicted by the slope of the lines such as B, D, and F? Transmission Queueing Processing Propagation b. What type of delay(s) does/do the difference in line thicknesses (e.g. F vs H) signify? Transmission Queueing DProcessing DPropagation Assuming the routers are identical in terms of memory and processors, what would explain the difference between the size of the gaps at C vs E and I vs P?? OTimeout Packet loss Congestion D is a bottleneck c. 02019 Kevin 8 Long Page 3 of 9 The slopes of the lines D, J, and O in relation to all others signify? Based on the assumptions we've followed in class, what could explain it? A change in processing time Greater distance d. Greater transmission delay OMore bandwidth OLess bandwidth aLesser Distance DA change in propagation speed Between the two routers, which seems to have the fuller buffer? ORI e. OR2 f. What is happening in time L? Choose the one most plausible explanation. Waiting on timer to retransmit a packet lost at RI OWaiting on server app to deliver next data to transmit OProcessing/queueing delay at server OSending second part of large packet stream (like a movie) 4. Transmission vs Propagation Delay 0.550 ms Receiver Match the following definitions to the options below. Options may be used more than once or not at all. a. The packet perfectly fills the link; the first bit of a packet is leaving as the last bit enters The first part of the packet arrives before the last is sent There is room for many packets on the link at the same time The last bit of the packet left some time ago as the first bit is arriving __ Each packet in queue in the sending router must wait for dprop for the prior packet to transmit D. D dtrans s dprop Edtrans