Only a,b,c,d.

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
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Only a,b,c,d.

Consider the following transmission scenario, where Host A is going to send a large file
of size 100,000 bits to Host B. Host A and Host B are 5 km apart and are directly
connected using a dedicated link. The link bandwidth is 500 Mbps (i.e. 5x108 bits-per-
second) and propagation speed is 2x10⁹ m/s.
Host A
IP addr:
Port #: 13579
Large
file
192.168.123.21
Host B
IP addr:
Port #:
192.168.123.48
(a) Do you suggest using TCP or UDP as the transport layer protocol for transmission?
Explain your answer.
(c) What is the transmission delay for sending ONE data packet?
24680
(b) According to your answer in (a), what would be the socket ID at Host A for this
transmission?
(d) What is the propagation delay of the link?
Further consider the settings of the transmission below:
Stop-and-wait operation is adopted, with maximum packet size of 5000 bits
All control packets (e.g. connect setup, ACK, etc.) have a fix size of 500 bits
Overhead due to lower layers (e.g. header) are neglected
Processing delay after receiving a packet / ACK is neglected
(e) Calculate the time required for Host A to send ONE data packet until Host A confirms
that data packet is correctly received by Host B.
(f) The entire process includes (i) connection setup using one round-trip, (ii) data
transmission, and (iii) connection tear-down using one round-trip. What is the total
time needed for the entire process to complete?
Transcribed Image Text:Consider the following transmission scenario, where Host A is going to send a large file of size 100,000 bits to Host B. Host A and Host B are 5 km apart and are directly connected using a dedicated link. The link bandwidth is 500 Mbps (i.e. 5x108 bits-per- second) and propagation speed is 2x10⁹ m/s. Host A IP addr: Port #: 13579 Large file 192.168.123.21 Host B IP addr: Port #: 192.168.123.48 (a) Do you suggest using TCP or UDP as the transport layer protocol for transmission? Explain your answer. (c) What is the transmission delay for sending ONE data packet? 24680 (b) According to your answer in (a), what would be the socket ID at Host A for this transmission? (d) What is the propagation delay of the link? Further consider the settings of the transmission below: Stop-and-wait operation is adopted, with maximum packet size of 5000 bits All control packets (e.g. connect setup, ACK, etc.) have a fix size of 500 bits Overhead due to lower layers (e.g. header) are neglected Processing delay after receiving a packet / ACK is neglected (e) Calculate the time required for Host A to send ONE data packet until Host A confirms that data packet is correctly received by Host B. (f) The entire process includes (i) connection setup using one round-trip, (ii) data transmission, and (iii) connection tear-down using one round-trip. What is the total time needed for the entire process to complete?
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