Network

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Network

• Tom McLaughlin
• b-admin, mcse, mous, a, net (mct, linux)
• tom_at_tomax7.com
• http//www.tomax7.com

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Networking Benefits
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Roles of Computers in a Network
Mail Server
Database Server
Fax Server
File and Print Server
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Types of Networks
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Scope of Networks
Local Area Network
Wide Area Network
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Bus Topology
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Star Topology
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Ring Topology
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Mesh Topology
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Hybrid Topologies
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Ethernet
Collision Detection
Carrier Sense Multiple Access
Detects signal
Transmits signal
Collision detected
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Token Ring
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Fiber Distributed Data Interface
Secondary Ring
Primary Ring
Characteristics
Description
Access Method
Token passing
Transfer Speed
Fiber-optic at 155 Mbps to 622 Mbps
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Network Cables
Types of Cables
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Wireless Communication Devices
Wireless Communication Devices
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Repeaters and Hubs
Repeater
Hub
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Bridges
Bridge
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Switches
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Routers
Router
Router
Router
Router
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Gateways
Gateway
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Infrared Data Association (IrDA)
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Open Systems Interconnection (OSI) Reference Model
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Types of Data Transmissions
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IP Address Classes
Class A
Network ID
Host ID
Class B
Network ID
Host ID
Class C
Network ID
Host ID
w
x
y
z
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IP Addresses
192.168.2.100
192.168.3.100
192.168.1.0
192.168.3.0
192.168.2.0
Network ID
192.168.1.100
192.168.2.101
Host ID
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Subnets
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Addressing Guidelines
The First Number in the Network ID Cannot Be 127
The Host ID Cannot Be All 255s
The Host ID Cannot Be All Zeros
The Host ID Must Be Unique to the Local Network
ID
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CIDR Notation
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The Internet
Server
Text, Audio, Video, and Graphics Data
Connection Using TCP/IP Protocol
Client
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Internet Services

• Electronic Mail (e-mail)
• World Wide Web (WWW)
• Chat
• Internet News
• File Transfer Protocol (FTP)
• Telnet

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Intranets
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Uniform Resource Locator (URL)

• URL (http//example.microsoft.com/tutorial/default
  .html)
• Protocol used (http//)
• DNS address (example.microsoft.com)
• Path on the server (/tutorial/default.html)

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Domain Naming

• Domain Name (example.microsoft.com)
• Top-level domain (com)
• Second-level domain (microsoft.com)
• Subdomain (example.microsoft.com)

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Domain Organization
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Features of a Domain
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Benefits of a Domain
Organized Objects
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Internet Protocols

• HTTP
• HTTPS
• FTP
• SMTP
• NNTP
• HTML
• DHTML

Server
Data
Connection Using an Internet Protocol
Client
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TCP/IP Layers
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Network Address Translators (NATs)
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Proxy Servers
AuthorizedWeb Site
Proxy Server
Restricted Web Site
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Firewalls
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Questions?
Answers www.tomax7.com