Introduction to Networks Companion Guide (CCNAv7)

About This eBook
Title Page
Copyright Page
About the Contributing Authors
Contents at a Glance
Reader Services
Contents
Command Syntax Conventions
Introduction
	Who Should Read This Book
	Book Features
	How This Book Is Organized
Figure Credits
Chapter 1. Networking Today
	Objectives
	Key Terms
	Introduction (1.0)
	Networks Affect Our Lives (1.1)
	Network Components (1.2)
	Network Representations and Topologies (1.3)
	Common Types of Networks (1.4)
	Internet Connections (1.5)
	Reliable Networks (1.6)
	Network Trends (1.7)
	Network Security (1.8)
	The IT Professional (1.9)
	Summary (1.10)
	Practice
	Check Your Understanding Questions
Chapter 2. Basic Switch and End Device Configuration
	Objectives
	Key Terms
	Introduction (2.0)
	Cisco IOS Access (2.1)
	IOS Navigation (2.2)
	The Command Structure (2.3)
	Basic Device Configuration (2.4)
	Save Configurations (2.5)
	Ports and Addresses (2.6)
	Configure IP Addressing (2.7)
	Verify Connectivity (2.8)
	Summary (2.9)
	Practice
	Check Your Understanding Questions
Chapter 3. Protocols and Models
	Objectives
	Key Terms
	Introduction (3.0)
	The Rules (3.1)
	Protocols
	Protocol Suites (3.3)
	Standards Organizations (3.4)
	Reference Models (3.5)
	Data Encapsulation (3.6)
	Data Access (3.7)
	Summary (3.8)
	Practice
	Check Your Understanding Questions
Chapter 4. Physical Layer
	Objectives
	Key Terms
	Introduction (4.0)
	Purpose of the Physical Layer (4.1)
	Physical Layer Characteristics (4.2)
	Copper Cabling (4.3)
	UTP Cabling (4.4)
	Fiber-Optic Cabling (4.5)
	Wireless Media (4.6)
	Summary (4.7)
	Practice
	Check Your Understanding Questions
Chapter 5. Number Systems
	Objectives
	Key Terms
	Introduction (5.0)
	Binary Number System (5.1)
	Hexadecimal Number System (5.2)
	Summary (5.3)
	Practice
	Check Your Understanding Questions
Chapter 6. Data Link Layer
	Objectives
	Key Terms
	Introduction (6.0)
	Purpose of the Data Link Layer (6.1)
	Topologies (6.2)
	Data Link Frame (6.3)
	Summary (6.4)
	Practice
	Check Your Understanding Questions
Chapter 7. Ethernet Switching
	Objectives
	Key Terms
	Introduction (7.0)
	Ethernet Frames (7.1)
	Ethernet MAC Address (7.2)
	The MAC Address Table (7.3)
	Switch Speeds and Forwarding Methods (7.4)
	Summary (7.5)
	Practice
	Check Your Understanding Questions
Chapter 8. Network Layer
	Objectives
	Key Terms
	Introduction (8.0)
	Network Layer Characteristics (8.1)
	IPv4 Packet (8.2)
	IPv6 Packet (8.3)
	How a Host Routes (8.4)
	Introduction to Routing (8.5)
	Summary (8.6)
	Practice
	Check Your Understanding Questions
Chapter 9. Address Resolution
	Objectives
	Key Terms
	Introduction (9.0)
	MAC and IP (9.1)
	ARP (9.2)
	IPv6 Neighbor Discovery (9.3)
	Summary (9.4)
	Practice
	Check Your Understanding Questions
Chapter 10. Basic Router Configuration
	Objectives
	Introduction (10.0)
	Configure Initial Router Settings (10.1)
	Configure Interfaces (10.2)
	Configure the Default Gateway (10.3)
	Summary (10.4)
	Practice
	Check Your Understanding Questions
Chapter 11. IPv4 Addressing
	Objectives
	Key Terms
	Introduction (11.0)
	IPv4 Address Structure (11.1)
	IPv4 Unicast, Broadcast, and Multicast (11.2)
	Types of IPv4 Addresses (11.3)
	Network Segmentation (11.4)
	Subnet an IPv4 Network (11.5)
	Subnet a Slash 16 and a Slash 8 Prefix (11.6)
	Subnet to Meet Requirements (11.7)
	VLSM (11.8)
	Structured Design (11.9)
	Summary (11.10)
	Practice
	Check Your Understanding Questions
Chapter 12. IPv6 Addressing
	Objectives
	Key Terms
	Introduction (12.0)
	IPv4 Issues (12.1)
	IPv6 Address Representation (12.2)
	IPv6 Address Types (12.3)
	GUA and LLA Static Configuration (12.4)
	Dynamic Addressing for IPv6 GUAs (12.5)
	Dynamic Addressing for IPv6 LLAs (12.6)
	IPv6 Multicast Addresses (12.7)
	Subnet an IPv6 Network (12.8)
	Summary (12.9)
	Practice
	Check Your Understanding Questions
Chapter 13. ICMP
	Objectives
	Introduction (13.0)
	ICMP Messages (13.1)
	Ping and Traceroute Tests (13.2)
	Summary (13.3)
	Practice
	Check Your Understanding Questions
Chapter 14. Transport Layer
	Objectives
	Key Terms
	Introduction (14.0)
	Transportation of Data (14.1)
	TCP Overview (14.2)
	UDP Overview (14.3)
	Port Numbers (14.4)
	TCP Communication Process (14.5)
	Reliability and Flow Control (14.6)
	UDP Communication (14.7)
	Summary (14.8)
	Practice
	Check Your Understanding Questions
Chapter 15. Application Layer
	Objectives
	Key Terms
	Introduction (15.0)
	Application, Presentation, and Session (15.1)
	Peer-to-Peer (15.2)
	Web and Email Protocols (15.3)
	IP Addressing Services (15.4)
	File Sharing Services (15.5)
	Summary
	Practice
	Check Your Understanding Questions
Chapter 16. Network Security Fundamentals
	Objectives
	Key Terms
	Introduction (16.0)
	Security Threats and Vulnerabilities (16.1)
	Network Attacks (16.2)
	Network Attack Mitigations (16.3)
	Device Security (16.4)
	Summary
	Practice
	Check Your Understanding Questions
Chapter 17. Build a Small Network
	Objectives
	Key Terms
	Introduction (17.0)
	Devices in a Small Network (17.1)
	Small Network Applications and Protocols (17.2)
	Scale to Larger Networks (17.3)
	Verify Connectivity (17.4)
	Host and IOS Commands (17.5)
	Troubleshooting Methodologies (17.6)
	Troubleshooting Scenarios (17.7)
	Summary (17.8)
	Practice
	Check Your Understanding Questions
Appendix A. Answers to “Check Your Understanding” Questions
Key Terms Glossary
Index
Code Snippets