Networking - T&T Software WWW Server

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Transcript Networking - T&T Software WWW Server

Networking
Telecommunications, Wireless
Technologies, and Computer
Networks
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Large-scale Media & Devices
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Microwave & Satellite Transmissions
Communications Satellites
T1 & T3 Lines
Multiplexer
Communications Processor
Encryption Devices
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Networking Software
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Network Operating Systems
Network Management Software
Network Device Software
Communication Protocols
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Network Operating System
(NOS)
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Processor management
Memory management
Application program requests
Hardware coordination
Security
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Network Management
Software
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Monitor individuals computers
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Monitor network traffic
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Monitor shared hardware
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Virus scanning
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Program updates system wide
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Network Device Software
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Settings for devices on network
Accessed from a network computer
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Communication Protocols
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Agreed upon format for message
transmissions
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Internet uses TCP/IP
Private networks use Ethernet
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Mobile Technologies
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Cell phones
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Pagers
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Global Positioning Systems
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Wireless Networking
Technology
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Wireless Fidelity (Wi-Fi)
WiMAX
Bluetooth
Infrared
Radio Frequency Identification
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WiFi & WiMAX
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Requires and access point
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Connects a computer to a network
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WiFi access 200 to 1000 feet
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WiMAX access up to 31 miles
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Hotspots
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Bluetooth
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Named after Danish king
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Range of 30 feet
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Connects a device to a device
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Speeds up to 1 Mbps
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Can connect up to 7 devices
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Infrared Transmission
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Light wave signal
Line-of-site connections
Short distances
Secure data transmission
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Radio Frequency Identification
(RFID)
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Very small transponders
Read by magnetic field reader
Merchandise tags
Shipping labels
Tagging pets & wildlife
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Network Architecture
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Nodes
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Every device on the network
Unique identification number/address
Client - Server
Peer - 2 - Peer
Blade Server
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Client - Server
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Centralized machine - Server
Other machines - Clients
Clients connect to Server
Types of Servers
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Web server / E-mail server
Database server
Applications server
File server
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Peer - 2 - Peer
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No centralized machine
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Any machine can be a server
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Any machine can be a client
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Blade Server
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Thin-clients
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Motherboard not part of machine
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Connect to processor as needed
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Much less expensive
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Network Types
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PAN
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LAN
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Metropolitan Area Network
WAN
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Local Area Network
MAN
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Personal Area Network
Wide Area Network
Global Networks
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Wan crossing international border
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Local Area Network (LAN)
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Topologies
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Star
Ring
Bus
Intranet
Extranet
Virtual Private Network (VPN)
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Tunneling
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Home Networks
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Phone-line networking
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Power-line networking
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Wireless networking
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