ITE PC v4.0How Networks Impact Daily Life and how it supports and improves our lives... How Networks Impact Daily Lifecommunication media such as, IM, Wikis , Blogs, Podcasting, and Col
Trang 1© 2007 Cisco Systems, Inc All rights reserved Cisco Public
Trang 2network.
converged networks.
fault tolerance, scalability, quality of service and security.
Trang 3ITE PC v4.0
How Networks Impact Daily Life
and how it supports and improves our lives.
Trang 4How Networks Impact Daily Life
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
and collaborate improves teaching and learning
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the way we work
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How Networks Impact Daily Life
the way we play
Trang 8Data Networking Role, Components, and
Challenges
– Rules or agreements are 1 st 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
Trang 10Data Networking Role, Components, and
Challenges
Describe the various
elements that make up a
network
communicate with one another
are connected together
over the medium
flow across network
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Data Networking Role, Components, and
Challenges
communications
– Converged network
• A type of network that can carry voice, video & data over
the same network
Trang 12Network Architecture Characteristics
network architecture design
– Fault tolerance – Scalability
– Quality of service – Security
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Network Architecture Characteristics
resiliency and fault tolerance of the Internet architecture
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to meet user demand
– Hierarchical – Common standards – Common protocols
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Network Architecture Characteristics
and the mechanisms necessary to ensure it
Trang 16Network Architecture Characteristics
of service for applications that require it.
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Network Architecture Characteristics
a given type of traffic
Trang 18Network Architecture Characteristics
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Network Architecture Characteristics
– Ensure confidentiality through use of
• User authentication
• Data encryption – Maintain communication integrity through use of
Trang 20IRC Clients and Wiki Server
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Summary