Chapter 0
Course Overview
Version 4.0
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Assessment
 Exam
70%
 LAB Exam
30%
 Absent
-5%/time
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Course outlines
 Chapter 1 Networking Fundamental and Media
 Chapter 2 Cable-LAN-WAN-Ethernet
 Chapter 3 Ethernet-Switching-TCPIP
 Chapter 4 Routing-Subnet
 Chapter 5 WANs and Routers
 Chapter 6 Configuring Router and IOS
 Chapter 7 Ethernet Technology
 Chapter 8 TCPIP-Control Message
 Chapter 9 Access Control List (ACL)
 Chapter 10 Network Design and Troubleshooting
 + 6 LABs
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Reference
 All Text Books of Cisco CCNA
Instructor Contact :
 Dr.Sukchatri PRASOMSUK
 Building ICT, Room 1332
 skchatri@hotmail.com
 0804509105
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Living in a Network
Centric World
In the present
Version 4.0
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How Networks Impact Daily Life
 Explain the benefits of instantaneous communication
and how it supports and improves our lives
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How Networks Impact Daily Life
 Describe the characteristics and purpose of popular
communication media such as, IM, Wikis , Blogs,
Podcasting, and Collaboration Tools
– Instant messaging
• Real time communication
between 2 or more
people based on typed text
– Weblogs (Blogs)
• Web pages created
by an individual
– Podcasting
• Website that contains
audio files available
for downloading
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How Networks Impact Daily Life
 Explain ways that using information networks to share
and collaborate improves teaching and learning
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How Networks Impact Daily Life
 Describe ways communication over a network changes
the way we work
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How Networks Impact Daily Life
 Describe ways communication over a network supports
the way we play
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Data Networking Role, Components, and Challenges
 Basic characteristics of communication
– Rules or agreements are 1st established
– Important information may need to be repeated
– Various modes of communication may impact the
effectiveness of getting the message across
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Data Networking Role, Components, and Challenges
 Describe the role of data networking in communications
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Data Networking Role, Components, and Challenges
 Describe the various
elements that make up a
network
– Devices
• These are used to
communicate with one
another
– Medium
• This is how the
devices are connected
together
– Messages
• Information that travels
over the medium
– Rules
• Governs how
messages flow across
network
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Data Networking Role, Components, and Challenges
 Describe the role of converged networks in
communications
– Converged network
• A type of network that can carry voice, video & data over
the same network
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Network Architecture Characteristics
 Explain four characteristics that are addressed by
network architecture design
– Fault tolerance
– Scalability
– Quality of service
– Security
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Network Architecture Characteristics
 Describe how packet switching helps improve the
resiliency and fault tolerance of the Internet architecture
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Network Architecture Characteristics
 Describe characteristics of the Internet that help it scale
to meet user demand
– Hierarchical
– Common standards
– Common protocols
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Network Architecture Characteristics
 Explain the factors that necessitate Quality of Service
and the mechanisms necessary to ensure it
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Network Architecture Characteristics
 Describe how QoS (Quaity of Service) mechanisms
work to ensure quality of service for applications that
require it
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Network Architecture Characteristics
 Describe how to select the appropriate QoS strategy for
a given type of traffic
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Network Architecture Characteristics
 Describe why networks must be secure
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Network Architecture Characteristics
 Describe basic measures to secure data networks
– Ensure confidentiality through use of
• User authentication
• Data encryption
– Maintain communication integrity through use of
• Digital signatures
– Ensure availability through use of
• Firewalls
• Redundant network
architecture
• Hardware without a single
point of failure
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Explain How a Hierarchical Network Design
Creates a Stable, Reliable, Scalable Network
Network requirements:
 Ease of management
 Fast recovery
 Application response time
 Fast troubleshooting
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Explain How a Hierarchical Network Design
Creates a Stable, Reliable, Scalable Network
Four fundamental network design goals:
 Scalability
 Availability
 Security
 Manageability
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Explain How a Hierarchical Network Design
Creates a Stable, Reliable, Scalable Network
 Core Layer: connects Distribution Layer devices
 Distribution Layer: interconnects smaller LANs
 Access Layer: provides connections for hosts and end
devices
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Explain How a Hierarchical Network Design
Creates a Stable, Reliable, Scalable Network
Subdividing the three-layer model into modular areas:
 Enterprise campus
 Server farm
 Enterprise edge
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Explain How a Hierarchical Network Design
Creates a Stable, Reliable, Scalable Network
Steps in network design projects:
 Identify the network requirements
 Characterize the existing network
 Design the network topology and solutions
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Utilize the Hierarchical Design Model to
Develop a Cost-Effective Network Design
 Create the logical LAN diagram, including the locations
of servers and services
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Cisco Packet Tracer
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Summary
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Chapter 1
Networking Fundamentals
and Networking Media
Version 4.0
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Objectives
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Requirements for Internet Connection
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PC Basics
PCI Expansion Slots
AGP Expansion Slot
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Network Interface Cards
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NIC and Modem Installation
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High-Speed and Dialup Connectivity
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TCP/IP Description and Configuration
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Testing Connectivity with Ping
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Web Browser and Plug-Ins
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Troubleshooting Internet Connections
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Binary Number System
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Bits and Bytes
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Base 10 Numbers
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Base 2 (Binary) Numbers
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Converting Decimal numbers to 8-bit Binary Numbers
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Converting 8-bit Binary Numbers to Decimal Numbers
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Four-Octet Dotted-decimal Representation of
32-Bit Binary Numbers
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Hexadecimal
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Boolean or Binary Logic
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IP Addresses and Network Masks
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Summary
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Networking Fundamentals
Version 4.0
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Objectives
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Data Networks
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Network History
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Network History continued
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Networking Devices
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Network Topology
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Network Protocols
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Local-area Networks (LANs)
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Wide-area Networks (WANs)
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Metropolitan-Area Network (MANs)
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Storage-Area Networks (SANS)
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Virtual Private Networks (VPNs)
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Benefits of VPNs
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Intranet and Extranet VPN
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Importance of Bandwidth
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Bandwidth Pipe Analogy
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Bandwidth Highway Analogy
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Bandwidth Measurements
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Bandwidth Limitations
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Bandwidth Throughput
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Digital Transfer Calculation
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Digital versus Analog
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Using Layers to Analyze Problems
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Using Layers to Describe Data Communication
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OSI Model
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OSI Layers
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OSI Layers
•Provides connectivity and path selection between two host
•Provides Logical address
•No error correction, best effort delivery.
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OSI Layers
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OSI Layers
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OSI Layers
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OSI Layers
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OSI Layers
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Peer-to-Peer Communication
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TCP/IP Model
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Encapsulation
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Names for Data at Each Layer
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Summary
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Networking Media
Version 4.0
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Objectives
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Atoms and Electrons
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Atoms and Electrons
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Atoms and Electrons
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Atoms and Electrons
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Voltage
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Resistance and Impedance
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Current Flow
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Circuits
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Circuits
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Cable Specifications
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Coaxial Cable
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Shielded Twisted-Pair Cable
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Unshielded Twisted Pair (UTP)
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Unshielded Twisted Pair (UTP)
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Unshielded Twisted Pair (UTP)
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Unshielded Twisted Pair (UTP)
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Unshielded Twisted Pair (UTP)
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Unshielded Twisted Pair (UTP)
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Unshielded Twisted Pair (UTP)
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The Electromagnetic Spectrum
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Ray Model of Light
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Ray Model of Light
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Reflection
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Reflection
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Refraction
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Total Internal Reflection
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Total Internal Reflection
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Total Internal Reflection
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Multimode Fiber
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Multimode Fiber
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Multimode Fiber
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Multimode Fiber
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Multimode Fiber
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Multimode Fiber
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Single-mode Fiber
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Optical Media
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Signals and Noise in Optical Fibers
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Scattering
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Bending
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Fiber End Face Finishes
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Fiber End Face Polishing Techniques
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Splicing
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Calibrated Light Sources and Light Meter
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Wireless LAN Standards
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Internal Wireless NIC for Desktop or Server
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PCMCIA NIC for Laptop
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External USB Wireless NIC
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Access Point
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Wireless LAN
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Roaming
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IEEE 802.3 Wireless Frame Types
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Adaptive Frame Types
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Authentication and Association Types
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Radio Wave
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Modulation
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Omni Directional Antenna
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Wireless Security
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Question/Answer
 Thank you
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