Your SlideShare is downloading. ×
2151 a 04
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

2151 a 04

138
views

Published on

Published in: Technology, Business

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
138
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
6
Comments
0
Likes
0
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Module 4: Examining the Network
  • 2. Overview  Scope of Networks  Basic Connectivity Components  Network Topologies  Network Technologies  Expanding the Network
  • 3. Scope of Networks Local Area Network Wide Area Network
  • 4. Basic Connectivity Components  Network Adapters  Network Cables  Wireless Communication Devices
  • 5. Network Adapters  Receive data and convert it into electrical signals  Receive electrical signals and convert them into data  Determine if the data received is for a particular computer  Control the flow of data through the cable
  • 6. Network Cables Types of Cables Types of Cables Twisted-Pair 10BaseT Unshielded (UTP) Shielded (STP) Coaxial 10Base2, 10Base5 Fiber-Optic ThinNet ThickNet
  • 7. Wireless Communication Devices Wireless Communication Devices Wireless Communication Devices Infrared Transmission Narrowband Radio Transmission
  • 8.  Network Topologies  Bus Topology  Star Topology  Ring Topology  Mesh Topology  Hybrid Topologies
  • 9. Bus Topology Segment Terminator Terminator
  • 10. Star Topology Hub
  • 11. Ring Topology
  • 12. Mesh Topology
  • 13. Hybrid Topologies Star-Bus Star-Ring Bus
  • 14.  Network Technologies  Ethernet  Token Ring  Asynchronous Transfer Mode (ATM)  Fiber Distributed Data Interface (FDDI)  Frame Relay
  • 15. Ethernet Transmits signal Detects signal Carrier Sense Multiple Access Characteristics Characteristics Collision detected Collision Detection Description Description Access Method Access Method CSMA/CD CSMA/CD Transfer Speed Transfer Speed Standard Ethernet – 10 Mbps Standard Ethernet – 10 Mbps Fast Ethernet – 100 Mbps Fast Ethernet – 100 Mbps Gigabit Ethernet – 1 Gbps (1000 Mbps) Gigabit Ethernet – 1 Gbps (1000 Mbps)
  • 16. Token Ring Physical Ring MSAU Characteristics Characteristics Logical Ring Description Description Access Method Access Method Token passing Token passing Transfer Speed Transfer Speed 4 to 16 Mbps for all cable types 4 to 16 Mbps for all cable types
  • 17. Asynchronous Transfer Mode ATM Switch Cell ATM Switch ATM Switch Characteristics Characteristics Cell Description Description Access Method Access Method Point-to-point. Transfers fixed-sized Point-to-point. Transfers fixed-sized packets from one computer to another packets from one computer to another through ATM switching equipment through ATM switching equipment Transfer Speed Transfer Speed Fiber-optic at 155 Mbps to 622 Mbps Fiber-optic at 155 Mbps to 622 Mbps
  • 18. Fiber Distributed Data Interface Secondary Ring Primary Ring Characteristics Characteristics Description Description Access Method Access Method Token passing Token passing Transfer Speed Transfer Speed Fiber-optic at 155 Mbps to 622 Mbps Fiber-optic at 155 Mbps to 622 Mbps
  • 19. Frame Relay Main Office Frame Relay Network Fram e Branch Offices Frame Characteristics Characteristics Fram Description Description Access Method Access Method Point-to-point Point-to-point Transfer Speed Transfer Speed Dependent upon transmittal Dependent upon transmittal capabilities of digital leased lines capabilities of digital leased lines e
  • 20.  Expanding the Network  Repeaters and Hubs  Bridges  Switches  Routers  Gateways  Remote Access Connectivity Types  Public Switched Telephone Network (PSTN)  Integrated Services Digital Network (ISDN)  X.25  Asymmetric Digital Subscriber Line (ADSL)
  • 21. Repeaters and Hubs Repeater Transmits data to all connected computers Repeater Hub Transmits data to all connected computers in a star topology Hub
  • 22. Bridges Bridge
  • 23. Switches Switch
  • 24. Routers Router Router
  • 25. Gateways Ethernet Gateway Token Ring
  • 26. Remote Access Connectivity Types Dial-up Remote Access Remote Access Client Remote Access Server Virtual Private Network Internet Tunnel Remote Access Client Windows 2000 VPN Server Corporate Intranet
  • 27. Public Switched Telephone Network (PSTN) Telephone Wires Client Analog Modem Analog Modem PSTN Analog Voice Data  Worldwide Availability  Analog Modem  56 Kbps  Server
  • 28. Integrated Services Digital Network (ISDN) Digital Telephone Lines or Telephone Wires ISDN Modem ISDN Modem Client ISDN International Communication Standard  Digital Transmission  Extends over Local Telephone Exchange  ISDN Modem  64 Kbps or Faster  Server
  • 29. X.25 PAD Service Client X.25 Smart Card Modem X.25 Based on Packet Switching  X.25 Packet Assembler/Disassembler (PAD)  Client Configuration  Server Configuration  Server
  • 30. Asymmetric Digital Subscriber Line (ADSL) ADSL Wires LAN Adapter ATM Adapter Client LAN Adapter ATM Adapter ADSL Copper Telephone Lines  Simultaneous Voice and Data Transmission  1.5 to 9 Mbps Downstream Rate  16 to 640 Kbps Upstream Rate  LAN Interface or Dial-up Interface  Server
  • 31. Lab A: Examining the Network Architecture
  • 32. Review  Scope of Networks  Basic Connectivity Components  Network Topologies  Network Technologies  Expanding the Network