Date Topic Homework
9/4

Introduction:

What is a data network?
What do data networks do?

The Five-layer Network Model

Pre: Chapters 1 & 2
  Unit 1: The Physical Layer  
  Types of data signals Pre: Chapter 3
  Transmitting digital signals Pre: Chapter 4
  Multiplexing: Sharing a physical link Pre: Chapter 6
  Transmission Media Pre: Chapter 7
  Switching and routing at the physical level Pre: Chapter 8
     
  Unit 2: The Data Link Layer  
  Error Detection and correction Pre: Chapter 10
  Framing Pre: Chapter 11
  Allowing multiple devices access to the same medium Pre: Chapter 12
  Ethernet Pre: Chapter 13
  Wireless networks Pre: Chapter 14
  Wide-area connections: Backbones, hubs, and switches Pre: Chapter 15
     
  Unit 3: The Network Layer  
  Logical Addressing Pre: Chapter 19
  IP: The Internet Protocol Pre: Chapter 20
  Address mapping and multicasting Pre: Chapter 21
  Routing and delivery Pre: Chapter 22
     
  Unit 4: The Transport Layer  
  TCP: the Transmission Control Protocol Pre: Chapter 23
  Congestion Control Pre: Chapter 24
     
  Unit 5: The Application Layer  
  DNS: Domain Name System - mapping names to IP addresses Pre: Chapter 25
  Common Applications: Telnet, e-mail, and FTP Pre: Chapter 26
  Common Applications: HTTP and the World Wide Web Pre: Chapter 27
     
  Unit 6: Cross-layer Applications  
  Security - Encryption Pre: Chapter 30
  Network security - protecting messages Pre: Chapter 31
  Network security - protecting networks Pre: Chapter 32
  Compression