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Published byRichard Eaton Modified over 9 years ago
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Information technology Data creation Data maintenance Data transfer
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Computer Network Network advantages
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Network typs Topology Management method Scale
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Scale LAN MAN WAN
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LAN concept LAN specification High Performance High security High speed Low cost Easy expansion Limited
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MAN Concept WAN Specification Performance Security Speed Cost Expansion limited
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WAN Concept WAN Specification Performance Security Speed Cost Easy Expansion limited
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Bandwidth concept The data transfer capacity of a digital communications system as measured in bits per second (bps).
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Topology Wired topology Wireless topology
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Wired topology BUS STAR RING MESH
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Wire less topology ad-hoc Infrastructure
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BUS
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Collision Terminator Signal bounce
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STAR
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straight & cross cable
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HUB Passive Active Smart (switch)
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RING
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MAU
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MESH
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Ad-hoc
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Infrastructure (access point)
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OSI open system interaction
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TCP/IP
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Application Outlook Yahoo! Messenger Google talk Browser...
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Transport Operation systems Error detection Flow control power flow Idle OUTCOM : segment
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Internet INCOME : segment OUTCOM : packet
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IP 0-255 0-255 0-255 0-255...
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IP Net ID : common in the Network Host ID : exclusive for computers Subnet : All of them have same Net ID
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IP Class A 0 – 127 255.0.0.0 Class B 128 – 191 255.255.0.0 Class C 192 – 223 255.255.255.0 Class D 224 – 239 Class E
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IP Static Dynamic ( DHCP) APIPA
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Subnet & Router
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Network Interface LAN Token Ring (Ring 802.5) Ethernet (Star & Bus 802.3 ) Wireless. OUTCOM : FRAM
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Ethernet Access method Ethernet algorithm is CSMA/CD CS carrier sense MA multiple access CD collision detect Result : CSMA/CD is Demand priority star & bus have Demand priority by HUB
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IEEE 802 IEEE 802.3 Ethernet IEEE 802.5 Token Ring IEEE 802.11 wireless IEEE 802.16 WiMAX
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Network Interface WAN ATM DSL Frame Relay ISDN Dial-up Loadsed lined soNet CATV.
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Network Device Cable TP Stp Utp Ftp UTP : CAT1,CAT2,CAT3,CAT4, CAT5,CAT6,CAT7
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Cable - coaxial
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Reference for more detail CompTIA Network+ MC Graw Hill Fourth edition 2010 CompTIA Network+ Sybex 2009 introduction to information system o’Brein, 14 th Edition, 2010
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Thank You For Your Patience & Attention
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