更新时间：2021-08-27 18:22:47
封面
Title Page
Copyright and credits
CCENT/CCNA: ICND1 100-105 Certification Guide
Dedication
Packt Upsell
Why subscribe?
PacktPub.com
Contributors
About the author
About the reviewer
Packt is searching for authors like you
Preface
Who this book is for
What this book covers
To get the most out of this book
Download the color images
Conventions used
Get in touch
Reviews
Introduction to Computer Networks
From ARPANET to internet
What is a computer network?
Requirements for designing a computer network
Types of computer networks
Personal area network (PAN)
Local area network (LAN)
Metropolitan area network (MAN)
Wide area network (WAN)
Intranet
Extranet
Computer network topologies
Physical topology
Bus
Ring
Star
Extended star
Hierarchical
Mesh
Logical topology
Computer network components
Clients
Servers
Hosts and nodes
Network interface
Peripheral devices
Applications and shared data
Hubs and switches
Routers
Infrastructure components
Firewall
Wireless access point
Wireless access controller
Computer network architectures
Peer-to-peer networking (P2P)
Client/server networking
Network operating system (NOS)
Windows
Linux
macOS X Server
Network medium
Twisted pairs
Coaxial
Fibre optic
Infrared and Bluetooth
Radio waves
Satellite
Converged networks
Growing complexity of networks
Elements of converged networks
Access distribution and core layers
Network trends
Summary
Questions
Communication in Computer Networks
How do computers communicate?
Message encoding
Message formatting and encapsulation
Message size
Message timing
Message delivery types
Unicast transmission
Multicast transmission
Broadcast transmission
Types of communication channels
Simplex
Half-duplex
Full-duplex
Communication protocols
Characteristics of communication protocols
Connection-oriented protocols
Connectionless protocols
Circuit switching versus packet switching
Well-known communication protocols
OSI and TCP/IP model overview
TCP/IP protocol model
OSI reference model
OSI layers and their protocols
Physical layer protocols
Data link layer protocols
