Andrew S. Tanenbaum, Nick Feamster, David Wetherall
ISBN #9780136764052
6th Edition
436 Questions
Homework Questions
Computer Networks: Global Edition is a detailed yet accessible textbook that explores the layered architecture of modern network communications. It begins by establishing foundational concepts and learning objectives before systematically delving into each network layer—from the physical transmission media and data link protocols to routing strategies at the network layer and application-level services like DNS and email. The book highlights the evolution of critical technologies, such as Ethernet and Wireless LANs, while also emphasizing the importance of error management, efficient data transmission, and robust security measures. Concluding with a curated reading list and bibliography, the text equips both students and professionals with comprehensive insights into designing, managing, and securing complex network infrastructures.
Chapter 1
Introduction
Chapter 2
The Physical Layer
Chapter 3
The Data Link Layer
Chapter 4
The Medium Access Control Sublayer
Chapter 5
The Network Layer
Chapter 6
The Transport Layer
Chapter 7
The Application Layer
Chapter 8
Network Security
Problem 1
Is an oil pipeline a simplex system, a half-duplex system, a full-duplex system, or none of the above? What about a river or a walkie-talkie-style communication?
Narayan Hari Numerade Educator
Problem 2
A group of $\mathrm{N}$ stations share a $56-\mathrm{kbp}$ s pure ALOHA channel. Each station outputs a 1000 -bit frame on average ance every $100 \mathrm{sec}$, even if the previous one has not yet been sent (e.g., the stations can buffer outgoing frames). What is the maximum value of N?
Problem 3
It is desired to send a sequence of computer screen images over an optical fiber. The screen is $3840 \times 2160$ pixels, each pixel being 24 bits. There are 50 screen images per second. What data rate is needed is needed?
Problem 4
A client-server system uses a satellite network, with the satellite at a height of 40,000 $\mathrm{km}$. What is the best-case delay in response to a request?
William Mead Numerade Educator
Problem 5
A noiseless $10-\mathrm{kHz}$ channel is sampled every $1 \mathrm{msec}$. What is the maximum data rate?
Rashmi Sinha Numerade Educator
Problem 6
Ten signals, each requiring $4000 \mathrm{~Hz}$, are multiplexed onto a single channel using FDM. What is the minimum bandwidth required for the multiplexed channel? Assume that the guard bands are $400 \mathrm{~Hz}$ wide.
WHAT OUR STUDENTS SAY
“I finally understand my textbook questions. Before Numerade, I’d skip hard problems. Now I get instant help with videos that explain everything simply.”
Edwin V. Penn State Freshman