Computer Networks

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The Physical Layer 32 Function: Accept a raw string of bits and deliver it across a link Key issues: Connection establishment & termination Encoding of bits Transmission of bits repeating, or amplification to extend range of transmission
The physical layer is responsible for movements of individual bits from one hop (node) to the next. 33
Page 1 and 2: ICTCO10506 Computer Networks ASANKA
Page 3 and 4: What is a Network? 3 A network con
Page 5 and 6: Use of Network 5 Email Chat W
Page 7 and 8: Transmission Media 7 Two main cate
Page 9 and 10: Where peer-to-peer network is appro
Page 11 and 12: Management: Clients and Servers 11
Page 13 and 14: Network size: Wide Area Network (WA
Page 15 and 16: Network size 15
Page 17 and 18: Topology: 3 basic types 17 Bus Top
Page 19 and 20: Lecture 01 : OSI Model 19
Page 21 and 22: Strategies for coping with complexi
Page 23 and 24: OSI Model 23 By the International
Page 25 and 26: Seven layers of the OSI model 25
Page 27 and 28: The interaction between layers in t
Page 29 and 30: An exchange using the OSI model 29
Page 31: The Physical Layer 31
Page 35 and 36: The Data Link Layer 35 Purpose:
Page 37 and 38: The data link layer is responsible
Page 39 and 40: The Network Layer 39 Purpose: Del
Page 41 and 42: The Network Layer: 41 Source-to-des
Page 43 and 44: The Transport Layer 43 Accept data
Page 45 and 46: The Transport Layer 45 Reliable pro
Page 47 and 48: The transport layer is responsible
Page 49 and 50: The Session Layer 49 Purpose: P
Page 51 and 52: The Presentation Layer 51
Page 53 and 54: The presentation layer is responsib
Page 55 and 56: The Application Layer 55 Purpose
Page 57 and 58: Summary of Layers 57
Page 59 and 60: Any Questions… 59

Computer Networks

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