The distance from Earth to Mars is about 90 106 meters in the best case. Assume there is a link between Earth and Mars with a transmission rate of 2Mb/s. We need to send a packet from Earth to Mars over this link, and the packet has a length of 20000 bits. (Recall: light speed is 300,000,000 meters/sec) 1. What's the transmit delay? 2. What's the propagation delay? 3. Ignore queuing and processing delay, what's the end to end delay?

The distance from Earth to Mars is about 90 106 meters in the best case. Assume there is a link between Earth and Mars with a transmission rate of 2Mb/s. We need to send a packet from Earth to Mars over this link, and the packet has a length of 20000 bits. (Recall: light speed is 300,000,000 meters/sec) 1. What's the transmit delay? 2. What's the propagation delay? 3. Ignore queuing and processing delay, what's the end to end delay?

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

Consider a packet that consists of 1000 bytes, including any headers. How long does it take to transmit this packet onto a data link if the transmission speed of the link is 8 Mbps (Megabits per second)? a. 125 seconds O b. .000001 second O c. .001 second O d. .000125 seconds
Host A and Host B are connected by a network with 2 store-and-forward switches. Each link has a bandwidth of 5 megabits/second and is 1,000 kilometers long. The network propagation speed is 200,000 kilometers/second. Host A sends 10,000- bit packets to Host B. Give proper units on each answer. (For these and other nu- merical problems it is required that you give a formula, using numbers from the problem, that can be evaluated to give the numerical answer.) a) What is the round-trip propagation delay between A and B? b) What is the transmission delay of a single packet from A to B? c) What is the bandwidth-delay product between A and B (RTT)?
Suppose we have a reservation system with 50 users, frame transmission time of 0.6 sec, v = 0.3. (a) What is the effective frame transmission time? (b) What is the efficiency/throughput if all stations are transmitting? (c) What is the efficiency/throughput if a minislot can reserve up to 7 frames?
1.3 10 packets are continuously sent over a 1 Mbps link. Each packet is of 1,000 bits long and RTT is 10 ms. What is the throughput of the link (i.e. on average, how many bits transmitted per second)? A. 511.856 bps B. 511.856 Kbps C. 500 bps D. 500 Kbps E. 666.667 Kbps rej res
1.) There is a data that has a file size of 26Mb with an ethernet overhead of 8 Mb. Find the Total amount of data to be transferred and Throughput, if there is an amount of data loss of 15 Mbps due to errors and acknowledgments. 2.) Assume that the distance between the sender and the receiver is 5000 km and that light travels at 1.7 x 108 m/s. What is the propagation time and the transmission time for a 1.44 MB message if the bandwidth of the network is 3 Mbps? 3.) An analog signal has a bit rate of 36000 bps and a baud rate of 1200 baud. How many data elements are carried by each signal element? How many signal elements do we need?
UDP and TCP use one’s complement for the checksum. Suppose you have the flowing four 8-bit data in a datagram: 10011011, 01011100, 11001101. 10101001 a) What is the one’s complement of the sum of the four? Show your work. b) Is it possible that a 1-bit error will go undetected? Is it possible that a 2-bit error will go undetected?
14. The link length is 2000km, the data transmission rate is 1kbit/s, and the data that needs to be sent is 100bit. The data propagation rate on this link is 2x10 m/s. Suppose we can see the bits transmitted on the link, try to draw the bits on the line we see: a) When 100bit is just sent. b) After another 0.05s
Consider a channel where ns = 4, nc = 5, L=5. What will be the value of N? Select one: O a. N=5 and 1 dummy bit will be generated for every 4th message O b. N=6 and no dummy bit will be generated O c. N=6 and 1 dummy bit will be generated for every 4th message O d. N=6 and 2 dummy bit will be generated for every 4th message Jump to
The following frame should be transmitted over a given network (the frame is shown in hexadecimal): 7E DB DD 7E C0 7D DB DC FF C0. a) If the SLIP framing protocol is used; what are the bytes that are sent on the wire (after framing)? Show your work
Que.a) Consider a CSMA/CD network that transmits data at a rate of 400 x 106 bits per second. The maximum signal propagation time from one node to another node is 20 microseconds. The minimum size of a frame in the network is(. bytes).
Consider a packet that consists of 1000 bytes, including any headers. How long does it take to transmit this packet onto a data link if the transmission speed of the link is 8 Mbps (Megabits per second)? а. .000001 second O b. .125 seconds с. .000125 seconds O d. .001 second
In an asenkron transmission a character size is 5 bits. In this transmission, if total overhead amount is 8,05 Kbit and total data size is 19,55 Kbit, which answer is correct? O a. Stop Bit = 1 Parity = "Odd" Amount of transmitted characters = 2700 O b. Stop Bit = 1 Parity = "Even" Amount of transmitted characters = 2400 O c. Stop Bit = 1,5 Parity = "Even" Amount of transmitted characters = 2300 O d. Stop Bit = 1,5 Parity = "No" Amount of transmitted characters = 2000 O e. Stop Bit = 2 Parity = "Even" Amount of transmitted characters = 2200