The network's performance can be measured in terms of latency (delay), throughput, and packet loss. Explain how each one of them can be used to measure the performance and elaborate with examples?

How does error detection and correction work in data transmission, and what protocols are commonly used for this purpose?

How would you write a system of linear equations based on the given scenario and directions? Scenario You are employed as a network engineer and have been asked to analyze a communication network to determine the current data rates and ensure that the links aren’t at risk of “reaching capacity.” In the following figure of the network, the sender is transmitting data at a total rate of 100+50 = 150 megabits per second (Mbps). The data is transmitted from the sender to the receiver over a network of five different routers. These routers are labeled A, B, C, D, and E. The connections and data rates between the routers are labeled as x1,x2, x3, x4, and x5 . Directions For this assignment, you will analyze the communication network and solve for the unknown data rates using a variety of techniques. The system can be modeled mathematically as a system of linear equations by writing an equation for each node/router in the network. Each of these equations can be written by noting that the sum…

To what extent does adding more redundancy to a communication improve its reliability, and what are its drawbacks?

Consider a point to point link 50 km in length. At what bandwidth (Kilo Bytes/second), would propagation delay (at a speed 2 x 108  meters/second) equal transmit delay for 100 byte packets?

Assume that an end-to-end communications system is made up of three networks with date rate in Mbps ρ1, ρ2, and ρ3, respectively. Ignoring the other delay components, what is the total end-to-end delay to transmit a packet size of λ?

Draw a space-time diagram similar to Figure 3.22 of textbook for the following problem: Sender is sending 10 packets to receiver. Stop after 7 packets are accepted by receiver. Protocol Used: Go-Back-N Sliding Window size = 6 Timeout interval =1RTT Assume transmission time of a packet = 1/4 RTT Assume Packet 1 is lost, then ACK 2 is lost, and then ACK 6 is lost Note: The sender starts a timer when base = nextseqnum, i.e. at beginning of your example. Then when an ACK is received, if base is not nextseqnum, the timer is started.