CCNA1 Version 3 Module 2
Objectives
Original Microcomputers Had No Way to Share Data
SneakerNet Using Floppy Disks to Exchange Data
LAN Allows Sharing Within A Local Area
LANs Are Not Capable of Handling Large Businesses
MANs and WANs Became Necessary
Relative Size of LANs and WANs
History of Telecommunications and the Internet
Networking Devices Workstations
Networking Devices NIC Cards
Networking Devices PCMCIA Interfaces for Notebooks
Networking Devices End User Device Icons
Networking Devices Device Icons
Networking Devices Repeater
Networking Devices Bridges
Networking Devices Switches
Networking Devices Switches
Physical Topologies
Teaching Topology
Computer Communication Protocols
LANs and LAN Devices
WANs and WAN Devices
MANs
Storage Area Network
Virtual Private Network (VPN) Connections
VPN Technologies
Intranets and Extranets
Intranet and Extranet VPNs
Why is bandwidth Important?
Pipe Analogy for Bandwidth
Highway Analogy for Bandwidth
Units of Bandwidth
Maximum Bandwidths and Length Limitations
WAN Services and Bandwidths
Variables that Might Affect Performance
Transfer Time Calculations
Data Transfer Calculations
Audio Analogy for Bandwidth
Analyzing Network in Layers
Layer Communications
Benefits of the OSI Model
OSI Model
OSI Model
OSI Model
OSI Model
OSI Model
OSI Model
OSI Model
Peer-to-Peer Communications
Peer-to-Peer Communications
TCP Model
Common TCP/IP Protocols
Comparing OSI and TCP Models
Data Encapsulation