urgent 5-The four pairs share a common middle hop with a transmission capacity of R =400 Mbps. The four links from the servers to the shared link have a transmissioncapacity of Rs = 70 Mbps. Each of the four links from the shared middle link to aclient has a transmission capacity of Rc = 80 Mbps.70 Mes00 M20 MbpsR 400 Mbps80 p80 Mp70 Mbps70 Mbps80 PosA. What is the maximum achievableend-end throughput (in Mbps) foreach of four client-to-serverpairs, assuming that the middlelink is fairly shared (divides itstransmission rate equally)?B. Which link is the bottleneck link?Format as Rc, Rs, or R?

Here is the explanation of the above problem.See below steps.

A. What is the maximum achievable end-end throughput (in Mbps) for each of four client-to-server pairs, assuming that the middle link is fairly shared (divides its transmission rate equally)? B. Which link is the bottleneck link? Format as Rc, Rs, or R?

A. What is the maximum achievable end-end throughput (in Mbps) for each of four client-to-server pairs, assuming that the middle link is fairly shared (divides its transmission rate equally)? B. Which link is the bottleneck link? Format as Rc, Rs, or R?

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

What is the total delay (latency) for a frame of size 78 million bits that is being sent on a same link with 9 intermediate devices having a queuing time of 83 us and a processing time of 93 us? The length of the link is 2000 Km. The speed of carrier inside the link is 2.8 × 108 m/s
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?
Qno 9: 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. ⦁ Compute the propagation delay in this case.⦁ What will be the propagation delay for a shared bus of 10 Mbps instead⦁ Suppose both hosts sense idle channel at the same time and starts transmission. Will it result in collision (yes or no)⦁ If yes: How much time is needed to detect this collision at Host-A? ⦁ If yes: How much time is needed to detect this collision at Host-B?
Suppose that we are sending a 30 Mb MP3 file from a source host to a destination host. All links in the path between source and destination have a transmission rate of 10 Mbps. Assume that the propagation speed is 2 × 108 meters/sec, and the distance between source and destination is 10,000 km. 1. Now suppose there is only one link between source and destination, and there are 10 FDM channels in the link. The MP3 file is sent over one of the channels. What is the end-to-end delay?
Assume a 10Mbps Ethernet has two nodes, A and B, connected by a 360m cable with threerepeaters in between, and they each have one frame of 1,024 bits to send to each other. Further assumethat the signal propagation speed across the cable is 2*10^8 m/sec, CSMA/CD uses back-off intervals ofmultiples of 512 bits, and each repeater will insert a store-and-forward delay equivalent to 20-bittransmission time. At time t=0, both A and B attempt to transmit. After the first collision, A draws K = 0and B draws K = 1 in the exponential back-off protocol after sending the 48bits jam signal. a. What is the one-way propagation delay (including all repeater delays) between A and B inseconds? At what time is A's packet completely delivered at B? b. Now suppose that only A has a packet to send and that the repeaters are replaced with switches.Suppose that each switch has an 8-bit processing delay in addition to a store-and-forward delay.At what time, in seconds, is A's packet delivered at B?
Consider the scenario shown below, with four different servers connected to four different clients over four three-hop paths. The four pairs share a common middle hop with a transmission capacity of R = 300 Mbps. The four links from the servers to the shared link have a transmission capacity of RS = 50 Mbps. Each of the four links from the shared middle link to a client has a transmission capacity of RC = 90 Mbps.......Assuming that the servers are all sending at their maximum rate possible, what are the link utilizations for the server links (with transmission capacity RS)? Enter your answer in a decimal form of 1.00 (if the utilization is 1) or 0.xx (if the utilization is less than 1, rounded to the closest xx)?
5-The four pairs share a common middle hop with a transmission capacity of R = 400 Mbps. The four links from the servers to the shared link have a transmission capacity of Rs = 70 Mbps. Each of the four links from the shared middle link to a client has a transmission capacity of Rc = 80 Mbps. 70 Mes 00 M 20 Mbps R 400 Mbps 80 p 80 Mp 70 Mbps 70 Mbps 80 Pos A. What is the maximum achievable end-end throughput (in Mbps) for each of four client-to-server pairs, assuming that the middle link is fairly shared (divides its transmission rate equally)? B. Which link is the bottleneck link? Format as Rc, Rs, or R?
A 1-km-long, 10-Mbps CSMA/CD LAN (not 802.3) has a propagation speed of 200 m/sec. Repeaters are not allowed in this system Data frames are 256 bits long, including 32 bits of header, checksum, and other overhead. The first bit slot after a successful transmission is reserved for the receiver to capture the channel in order to send a 32-bit acknowledgement frame. What is the effective data rate, excluding overhead, assuming that there are no collisions?
A circuit-switched TDM-link uses 1024-bit frames over 16 TDM slots'. a. How many 'circuits’ are supported by this configuration? b. If we allowed the TDM-link to be utilized for "TCP connections", how many simultaneous TCP connections could be supported by the TDM link? (Hint: remember TCP connections is a full-duplex bidirectional stream) If the gross bitrate of this link is 8.192Mbit/s, what is the 'frame rate'? C. d. Given the 'gross bitrate', what would the throughput be (in bits/s, Kbits/s, or Mbits/s, as appropriate) for any ONE 'circuit in this configuration?
Nodes A and B are on the same 10 Mbps Ethernet segment, and the propagation delay between two nodes is 225 bit times. Suppose A and B send frames at t = 0 , the frames collide then at what time they (A or B) finish transmitting a jam signal. Assume a 48 bit jam signal
5-The four pairs share a common middle hop with a transmission capacity of R = 400 Mbps. The four links from the servers to the shared link have a transmission capacity of Rs = 70 Mbps. Each of the four links from the shared middle link to a client has a transmission capacity of Rc = 80 Mbps. 270 M R-400 P 80 70 M 50 s A. What is the maximum achievable end-end throughput (in Mbps) for each of four client-to-server pairs, assuming that the middle link is fairly shared (divides its transmission rate equally)? B. Which link is the bottleneck link? Format as Rc, Rs, or R?
We are sending a 50 Mbit file from a source host to a destination host. All links in the path between source and destination have a transmission rate of 10 Mbps. Assume that the propagation speed is 2 * 10^8 meters/sec, and the distance between source and destination is 20,000 km. question:How much is the end-to-end delay (transmission delay plus propagation delay)