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CCNA Discovery 1 - Chapter 3
- 1. Connecting to the
Network
Networking for Home and Small Businesses – Chapter
3
Version 4.0 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 1
- 2. Objectives
Explain the concept of networking and the benefits of
networks.
Explain the concept of communication protocols.
Explain how communication occurs across a local
Ethernet network.
Describe Access layer devices and communication
methods on a local Ethernet network.
Describe Distribution layer devices and
communication methods across networks.
Plan, implement, and verify a local network.
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 2
- 3. Networking and Its Benefits
Define the term network and identify various types of
networks
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 3
- 4. Networking and Its Benefits
Describe the benefits of computer networking and list
examples of small, medium and large networks
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 4
- 5. Networking and Its Benefits
Define the components of an Information network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 5
- 6. Networking and Its Benefits
Describe the Roles of computers on a network
Clients and servers
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6
- 7. Networking and Its Benefits
Build computer peer-to-peer network and verify
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7
- 8. Network Topologies
Differentiate between logical and physical topologies,
and explain how networks are represented graphically
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 8
- 9. Communication Protocols
Explain the concept of communication in terms of
source, destination and channel
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 9
- 10. Communication Protocols
Explain the need for rules and protocols in order for
communication to occur
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 10
- 13. Communication Protocols
Explain that messages have size restrictions depending
on the channel used
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13
- 14. Communication Protocols
Explain the concept of timing and access methods in
relation to human communication
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 14
- 15. Communication Protocols
Explain standard message patterns in relation to human
communication
Unicast
Multicast
Broadcast
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 15
- 16. Communication Protocols
Relate human communications concepts of messages,
unit sizes, timing, encapsulation, encoding and
standard message patterns to the term “protocol” .
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 16
- 17. Communication Across a Local Ethernet
Network
Explain that Devices on a local network must share
common protocols to communicate (Communicating by
the Rules)
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 17
- 18. Communication Across a Local Ethernet
Network
Identify the importance of standardization in computer
communication protocols
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 18
- 19. Communication Across a Local Ethernet
Network
Physical addressing identifies Source, Destination and
Channel on an Ethernet Network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 19
- 20. Communication Across a Local Ethernet
Network
Describe some of the basic characteristics of Ethernet
for communicating across the channel
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 20
- 21. Communication Across a Local Ethernet
Network
Describe the need for a hierarchical design in an
Ethernet Network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 21
- 22. Communication Across a Local Ethernet
Network
Explain the purpose of a logical network address as the
location of a host on a Network (source and destination)
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 22
- 23. Access Layer Devices and Communication
Methods
Describe the Purpose of the Access Layer and how it
is used within an Ethernet Network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 23
- 24. Access Layer Devices and Communication
Methods
Describe the function of a Hub and how it operates
within an Ethernet Network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 24
- 25. Access Layer Devices and Communication
Methods
Describe the function of switches and how they are
used in an Ethernet network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 25
- 26. Access Layer Devices and Communication
Methods
Broadcast Domains and broadcasts using hubs and
switches
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 26
- 27. Distribution Layer Devices and
Communication Methods
Describe the reasons for expanding your network with a
distribution layer
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 27
- 28. Distribution Layer Devices and
Communication Methods
Describe the function of routers and how they are used
in the network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 28
- 29. Distribution Layer Devices and
Communication Methods
Explain the concept of the default gateway
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 29
- 30. Distribution Layer Devices and
Communication Methods
Describe how the router keeps tract of multiple
networks using routing and ARP tables
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 30
- 31. Distribution Layer Devices and
Communication Methods
Define the term “local area network (LAN)”
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 31
- 32. Distribution Layer Devices and
Communication Methods
Differentiate between implications of adding hosts to
“My local network” vs. adding to a “remote network”
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 32
- 33. Distribution Layer Devices and
Communication Methods
Learn to Use Packet Tracer
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 33
- 34. Plan, Implement and Verify a Local Network
Plan and document the building of a small home or
small business Ethernet network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 34
- 35. Plan, Implement and Verify a Local Network
Build a virtual model of their small home or small
business network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 35
- 36. Plan, Implement and Verify a Local Network
Describe the features of multifunction devices and how
they are used in the network
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 36
- 37. Plan, Implement and Verify a Local Network
Connect and properly document the network installation
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 37
- 38. Plan, Implement and Verify a Local Network
Perform simple workgroup tasks in order to share
resources
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 38
- 39. Summary
Information networks carry data using hosts as clients,
servers, or both.
All computer communication involves a source,
destination, and channel.
Rules called protocols govern computer
communications.
Larger networks are divided into smaller, more
manageable ones using a layered hierarchical design.
Each network host needs both a physical MAC address
and a logical IP address.
Good network design requires a network plan.
© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 39
- 40. © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 40