Ccent Study Guide: Exam 100-101 (Icnd1) (Paperback)

Introduction xxi CCENT Exam Objectives xxxii Assessment Test xxxviii Chapter 1 Internetworking 1 Internetworking Basics 2 Internetworking Models 10 The Layered Approach 11 Advantages of Reference Models 12 The OSI Reference Model 12 The Application Layer 14 The Presentation Layer 15 The Session Layer 15 The Transport Layer 16 The Network Layer 21 The Data Link Layer 23 The Physical Layer 26 Summary 27 Exam Essentials 28 Written Labs 29 Written Lab 1.1: OSI Questions 29 Written Lab 1.2: Defining the OSI Layers and Devices 30 Written Lab 1.3: Identifying Collision and Broadcast Domains 31 Review Questions 32 Chapter 2 Ethernet Networking and Data Encapsulation 39 Ethernet Networks in Review 40 Collision Domain 41 Broadcast Domain 42 CSMA/CD 43 Half- and Full-Duplex Ethernet 45 Ethernet at the Data Link Layer 47 Ethernet at the Physical Layer 53 Ethernet Cabling 57 Straight-Through Cable 58 Crossover Cable 58 Rolled Cable 60 Fiber Optic 62 Data Encapsulation 64 The Cisco Three-Layer Hierarchical Model 68 The Core Layer 68 The Distribution Layer 70 The Access Layer 70 Summary 71 Exam Essentials 71 Written Labs 72 Written Lab 2.1: Binary/Decimal/Hexadecimal Conversion 73 Written Lab 2.2: CSMA/CD Operations 77 Written Lab 2.3: Cabling 77 Written Lab 2.4: Encapsulation 78 Review Questions 79 Chapter 3 Introduction to TCP/IP 85 Introducing TCP/IP 86 A Brief History of TCP/IP 87 TCP/IP and the DoD Model 87 The Process/Application Layer Protocols 89 The Host-to-Host Layer Protocols 99 The Internet Layer Protocols 108 IP Addressing 116 IP Terminology 116 The Hierarchical IP Addressing Scheme 117 Private IP Addresses (RFC 1918) 122 IPv4 Address Types 124 Layer 2 Broadcasts 124 Layer 3 Broadcasts 124 Unicast Address 125 Multicast Address 126 Summary 127 Exam Essentials 128 Written Labs 130 Written Lab 3.1: TCP/IP 130 Written Lab 3.2: Mapping Applications to the DoD Model 130 Review Questions 132 Chapter 4 Easy Subnetting 137 Subnetting Basics 138 How to Create Subnets 140 Subnet Masks 140 Classless Inter-Domain Routing (CIDR) 142 IP Subnet-Zero 144 Subnetting Class C Addresses 144 ...