© 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ITE PC v4.0 Chapter 1 1 The Internet and Its Uses Working at a Small-to-Medium Business or ISP – Chapter 1

ITE PC v4.0 Chapter 1 2 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Objectives  Describe how the Internet is evolving and the various ways that businesses are using the Internet.  Describe the importance of standards in the continuing growth of the Internet.  Describe the purpose of an ISP and the services that it offers.  Describe the hierarchical structure of the Internet and the purpose of the Point of Presence (POP) and the Internet Exchange Point (IXP).  Identify the types of devices used in by the ISP to provide services and describe the importance of scalability in the ISP network.  Describe the various network support teams that work at an ISP and the roles and responsibilities of each one.

ITE PC v4.0 Chapter 1 3 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Evolution of the Internet and Its Uses  Describe how business has impacted the evolution and growth of the Internet

ITE PC v4.0 Chapter 1 4 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Evolution of the Internet and Its Uses  Describe the importance of standards in the continuing growth of the Internet.

ITE PC v4.0 Chapter 1 5 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Evolution of the Internet and Its Uses  Describe an ISP and the services it can offer.

ITE PC v4.0 Chapter 1 6 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Internet Service Providers  Identify connection options to the Internet

ITE PC v4.0 Chapter 1 7 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Internet Service Providers  Describe Internet hierarchy

ITE PC v4.0 Chapter 1 8 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Internet Service Providers  Describe the structure of the Internet  Utilities that help to visualize how ISP networks interconnect

ITE PC v4.0 Chapter 1 9 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ISP Connectivity  Explain how an ISP connects to all the other service providers making up the Internet

ITE PC v4.0 Chapter 1 10 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ISP Devices  Access Devices  Border Gateway Routers  Servers

ITE PC v4.0 Chapter 1 11 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public ISP Connectivity  Roles and responsibilities within an ISP On-site Installation Customer Service Planning NOC Help Desk

ITE PC v4.0 Chapter 1 12 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public Summary  Businesses use the Internet for e-commerce, communications, collaboration, and training.  Internetworking standards ensure that all devices connecting to the Internet use the same set of rules.  All Internet connections are made through an Internet Service Provider (ISP).  Multiple ISPs join together at an Internet Exchange Point (IXP) to gain access to each other’s networks.  ISPs must provide a reliable and scalable network.  ISP organizations are composed of many teams offering a range of support services.

ITE PC v4.0 Chapter 1 13 © 2007 Cisco Systems, Inc. All rights reserved.Cisco Public