Living in a Network Centric World Ti sao

Living in a Network Centric World - Tại sao phải biết về mạng ?

How Networks Impact Daily Life § Network supports the way we live © 2007

How Networks Impact Daily Life § Network supports the way we learn © 2007

How Networks Impact Daily Life § Network supports the way we work © 2007

How Networks Impact Daily Life § Network supports the way we play © 2007

Data Networking Role, Components, and Challenges § Describe the various elements that make up

Data Networking Role, Components, and Challenges § Describe the role of converged networks in

Network Structure § Học mạng là học những gì? © 2007 Cisco Systems, Inc.

Network Structure § the components of a network • Devices • Media • Services

Networking Career opportunities § Cơ hội nghề nghiệp © 2007 Cisco Systems, Inc. All

Networking Career opportunities § Traditional IT: programmers, software engineers, data base administrators and network

Network Architecture Characteristics § Describe basic measures to secure data networks – Ensure confidentiality

© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 13

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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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 6

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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 7

Networking Career opportunities § Traditional IT: programmers, software engineers, data base administrators and network technicians. Now joined by new titles: § Network architect (Kiến trúc mạng) § e-Commerce site designer (Thiết kế Website thương mại điện tử) § Information security officer (Chuyên viên an toàn thông tin) § And home integration specialist (chuyên gia tích hợp hệ thống gia dụng). © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 11

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 © 2007 Cisco Systems, Inc. All rights reserved. Cisco Public 12