Suppose two hosts (Host-A and Host-B) are connected through a shared Ethernet bus of 1 Mbps. The distance between two nodes is 5 meters. The signal propagation speed over physical media is 2.5 x 10^5 meters/second. B Bus Topology a) Compute the propagation delay in this case. b) What will be the propagation delay for a shared bus of 10 Mbps instead? c) Suppose both hosts sense idle channel at the same time and starts transmission. Will it result in collision (yes or no)? Explain. d) If yes, How much time is needed to detect this collision at Host-A? Show working. e) If yes, How much time is needed to detect this collision at Host-B? Show working.

Suppose two hosts (Host-A and Host-B) are connected through a shared Ethernet bus of 1 Mbps. The distance between two nodes is 5 meters. The signal propagation speed over physical media is 2.5 x 10^5 meters/second. B Bus Topology a) Compute the propagation delay in this case. b) What will be the propagation delay for a shared bus of 10 Mbps instead? c) Suppose both hosts sense idle channel at the same time and starts transmission. Will it result in collision (yes or no)? Explain. d) If yes, How much time is needed to detect this collision at Host-A? Show working. e) If yes, How much time is needed to detect this collision at Host-B? Show working.

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

See similar textbooks

Similar questions

Host A and B are directly connected by an 8mps link. The distance between the two host is 4000 kilometers. The propagation speed over the link is 2 x 10^8 m/s, and all packets are 1000 bytes long. What is the propagation delay, in seconds, between the two hots? What is the transmission delay, in seconds, between the two host?
2. In the Ethernet packet, the "Data" part is used to contain data send from source to destination and vice versa. The minimum number of data bytes is 46; what if the data is less by 2 bytes
Consider TDM-based circuit switching with 8000 frames per second and 32 time slots per frame. During each time slot 8 bits are sent. What is the shortest time possible (in seconds) to transmit a 1 Mbyte file over the given link?
A planet located far from Earth is around 9 x 1010 meters away. If a stop-and-wait protocol is employed for frame transmission on a 64 Mbps point-to-point link, what is the channel utilization? Assume that the speed of light is 3 108 m/s and that the frame size is 32 KB.
4
please also provide an explanation
In a broadcast architecture, why is an ARP query being sent? Why is an ARP response sent in a frame with a destination's MAC address?
Consider a full-duplex 256 Kbps satellite link with a 240 millisecond end-to-end delay. The data frames carry a useful payload of size 12,000 bits. Assume that both ACK and data frames have 320 bits of header information, and that ACK frames carry no data. What is the effective data throughput When using Stop and Wait?
Consider a full-duplex 512 kbps link with length 36,000Km connecting two hosts. The data frames carry a useful payload of size 6000 bits. Assume that both ACK and data frames have 400 bits of header information, and that ACK frames carry no data. The propagation speed along this link is 3×108 m/sec. a) What is the RTT on this link? b) What is the effective useful data throughput, in kbps, when using Stop-and-Wait?
Calculate the delay x bandwidth product for the following links. Use one-way delay, measured from first bit sent to first bit received. (a) 100-Mbps Ethernet with a delay of 10 μs. (b) 100-Mbps Ethernet with a single store-and-forward switch like that of Exercise 16(b), packet size of 12,000 bits, and 10 μs per link propagation delay. (c) 1.5-Mbps T1 link, with a transcontinental one-way delay of 50 ms. (d) 1.5-Mbps T1 link between two groundstations communicating via a satellite in geosynchronous orbit, 35,900 km high. The only delay is speed-of-light propagation delay from Earth to the satellite and back.
Assume a 4Kbps link has a one-way latency of 50ms and a frame with 4-bit sequence numbers. Let the minimum frame size that can guarantee a 50% channel utilization assuming the stop-and-wait protocol is X' bits, and the minimum frame size that can guarantee a 50% channel utilization assuming the selective repeat protocol is 'Y' bits. Find the value of X+ Y?
For example, let's say each user needs 500 kbps and is only active 25% of the time. In order to satisfy user needs with a chance of at least 0.9%, how many users can we multiplex on an 8 Mbps link? In this instance, what is the statistical multiplexing advantage that may be achieved via multiplexing?