1. Packet delay and transmission time. a. How long (in seconds) would it take to deliver a 22 TB file (22 x 10¹2 bytes) across a 1 Gb/sec (b= bits) dedicated link? b. Now assume the 1 Gb/sec dedicated link is reduced to a 0.6 Gb/s link, but 65% of the data from part a of this problem are cached locally. How long would this take to be delivered (from both cache and from the network)? c. Suppose 4 packets arrive simultaneously to a link which no packets are currently being transmitted or queued. Each packet is of length 1500 bits and the link has a transmission rate of 1 Mbps. What is the average queuing delay (dqueue)? d. What is the total transmission time for the 4 packets?

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
icon
Related questions
Question

Use 1000 instead of 1024 please

Note: To make calculations easier, you can use 1000 instead of 1024 when calculating kb or multiples
thereof.
1. Packet delay and transmission time.
a. How long (in seconds) would it take to deliver a 22 TB file (22 x 10¹² bytes) across a 1 Gb/sec (b=
bits) dedicated link?
b. Now assume the 1 Gb/sec dedicated link is reduced to a 0.6 Gb/s link, but 65% of the data from
part a of this problem are cached locally. How long would this take to be delivered (from both
cache and from the network)?
c. Suppose 4 packets arrive simultaneously to a link which no packets are currently being
transmitted or queued. Each packet is of length 1500 bits and the link has a transmission rate of
1 Mbps. What is the average queuing delay (dqueue)?
d. What is the total transmission time for the 4 packets?
Transcribed Image Text:Note: To make calculations easier, you can use 1000 instead of 1024 when calculating kb or multiples thereof. 1. Packet delay and transmission time. a. How long (in seconds) would it take to deliver a 22 TB file (22 x 10¹² bytes) across a 1 Gb/sec (b= bits) dedicated link? b. Now assume the 1 Gb/sec dedicated link is reduced to a 0.6 Gb/s link, but 65% of the data from part a of this problem are cached locally. How long would this take to be delivered (from both cache and from the network)? c. Suppose 4 packets arrive simultaneously to a link which no packets are currently being transmitted or queued. Each packet is of length 1500 bits and the link has a transmission rate of 1 Mbps. What is the average queuing delay (dqueue)? d. What is the total transmission time for the 4 packets?
Expert Solution
Step 1 Introduction
Packet delay is the time delay between when a packet of data is sent from one place to another. This is also referred to as latency. Transmission time is the amount of time required to push all the bits of the packet into the transmission medium. Typically, the transmission time is much shorter than the packet delay. For example, a 200-byte packet may have a transmission time of 240 seconds, while the overall packet delay may be 480 seconds.
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Knowledge Booster
Network Transmission Cabling
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Database System Concepts
Database System Concepts
Computer Science
ISBN:
9780078022159
Author:
Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:
McGraw-Hill Education
Starting Out with Python (4th Edition)
Starting Out with Python (4th Edition)
Computer Science
ISBN:
9780134444321
Author:
Tony Gaddis
Publisher:
PEARSON
Digital Fundamentals (11th Edition)
Digital Fundamentals (11th Edition)
Computer Science
ISBN:
9780132737968
Author:
Thomas L. Floyd
Publisher:
PEARSON
C How to Program (8th Edition)
C How to Program (8th Edition)
Computer Science
ISBN:
9780133976892
Author:
Paul J. Deitel, Harvey Deitel
Publisher:
PEARSON
Database Systems: Design, Implementation, & Manag…
Database Systems: Design, Implementation, & Manag…
Computer Science
ISBN:
9781337627900
Author:
Carlos Coronel, Steven Morris
Publisher:
Cengage Learning
Programmable Logic Controllers
Programmable Logic Controllers
Computer Science
ISBN:
9780073373843
Author:
Frank D. Petruzella
Publisher:
McGraw-Hill Education