Chapter 4: Network Access. Introduction to Networks v5.1
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1 Chapter 4: Network Access Introduction to Networks v5.1
2 4.0 Introduction 4.1 Physical Layer Protocols 4.2 Network Media 4.3 Data Link Layer Protocols 4.4 Media Access Control 4.5 Summary 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 2
3 Upon completion of this section, you should be able to: Identify device connectivity options. Describe the purpose and functions of the physical layer in the network. Describe basic principles of the physical layer standards Cisco and/or its affiliates. All rights reserved. Cisco Public 3
4 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 4
5 Home Router Connecting to the Wired LAN 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 5
6 Wired Connection Using an Ethernet NIC Connecting to the Wireless LAN with Range Extender 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 6
7 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 7
8 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 8
9 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 9
10 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 10
11 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 11
12 Manchester Encoding Modulation 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 12
13 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 13
14 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 14
15 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 15
16 Upon completion of this section, you should be able to: Identify the basic characteristics of copper cabling. Build a UTP cable used in Ethernet networks (scope does not include cabling area discussion). Describe fiber-optic cabling and its main advantages over other media. Connect devices using wired and wireless media Cisco and/or its affiliates. All rights reserved. Cisco Public 16
17 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 17
18 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 18
19 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 19
20 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 20
21 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 21
22 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 22
23 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 23
24 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 24
25 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 25
26 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 26
27 RJ-45 UTP Plugs RJ-45 UTP Socket 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 27
28 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 28
29 UTP Testing Parameters: Wire map Cable length Signal loss due to attenuation Crosstalk 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 29
30 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 30
31 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 31
32 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 32
33 Single Mode 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 33
34 Multimode 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 34
35 Fiber Optic Connectors 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 35
36 Common Fiber Patch Cords 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 36
37 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 37
38 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 38
39 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 39
40 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 40
41 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 41
42 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 42
43 Upon completion of this section, you should be able to: Describe the purpose and function of the data link layer in preparing communication for transmission on specific media Cisco and/or its affiliates. All rights reserved. Cisco Public 43
44 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 44
45 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 45
46 Layer 2 Data Link Address 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 46
47 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 47
48 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 48
49 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 49
50 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 50
51 Upon completion of this section, you should be able to: Compare the functions of logical topologies and physical topologies. Describe the basic characteristics of media access control methods on WAN topologies. Describe the basic characteristics of media access control methods on LAN topologies. Describe the characteristics and functions of the data link frame Cisco and/or its affiliates. All rights reserved. Cisco Public 51
52 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 52
53 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 53
54 Physical Topology 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 54
55 Logical Topology 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 55
56 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 56
57 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 57
58 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 58
59 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 59
60 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 60
61 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 61
62 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 62
63 Half-Duplex Communication Full-Duplex Communication 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 63
64 Contention-Based Access 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 64
65 Controlled Access 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 65
66 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 66
67 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 67
68 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 68
69 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 69
70 Frames have three basic parts: Header Data Trailer 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 70
71 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 71
72 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 72
73 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 73
74 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 74
75 Examples of Layer 2 protocols: Wireless Frame PPP Frame HDLC Frame Relay Ethernet Frame 2013 Cisco and/or its affiliates. All rights reserved. Cisco Public 75
76 Chapter Objectives: Explain how physical layer protocols and services support communications across data networks. Build a simple network using the appropriate media. Explain how the Data Link layer supports communications across data networks. Compare media access control techniques and logical topologies used in networks Cisco and/or its affiliates. All rights reserved. Cisco Public 76
77 Thank you.
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