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© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public ITE PC v4.0 Chapter 1 1 Troubleshootin g Y our Network Networking for Home and Small Businesses – Chapter 9

Discovery Home SB Chapter 9

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8/14/2019 Discovery Home SB Chapter 9

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© 2007 Cisco Systems, Inc. All rights reserved. Cisco PublicITE PC v4.0Chapter 1 1

Troubleshooting Your 

Network

Networking for Home and Small Businesses – Chapter 9

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ITE PC v4.0Chapter 1 2© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Objectives Describe the troubleshooting process.

Describe the utilities used to verify TCP/IPconnectivity.

Identify and describe common hardware andconnection issues in wired and wireless networks.

Utilize the troubleshooting process to documentproblems and interact with a help desk.

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ITE PC v4.0Chapter 1 3© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

The Troubleshooting Process Identify and describe troubleshooting process

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ITE PC v4.0Chapter 1 4© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

The Troubleshooting Process Gathering Information

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ITE PC v4.0Chapter 1 5© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

The Troubleshooting Process Describe approaches to troubleshooting

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ITE PC v4.0Chapter 1 6© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Utilities Used to Verify TCP/IP Connectivity Detecting Physical problems

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Utilities Used to Verify TCP/IP Connectivity

Identify and describe software utilities for troubleshooting connectivity.

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Utilities Used to Verify TCP/IP Connectivity

Describe and use Ipconfig

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Utilities Used to Verify TCP/IP Connectivity

Describe and use ping

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Utilities Used to Verify TCP/IP Connectivity

Describe and use tracert

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Utilities Used to Verify TCP/IP Connectivity

Describe and use netstat

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Utilities Used to Verify TCP/IP Connectivity

Describe and use nslookup

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

Hardware and Connection Issues in Wired &Wireless Networks

Isolating connectivity issues

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ITE PC v4.0Chapter 1 14© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Hardware and Connection Issues in Wired &Wireless Networks

Describe the purpose of LED indicators and their meaning.

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ITE PC v4.0Chapter 1 15© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Hardware and Connection Issues in Wired &Wireless Networks

Describe connection issues with wired networks.

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ITE PC v4.0Chapter 1 16© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Hardware and Connection Issues in Wired &Wireless Networks

Identify and describe radio issues with a wirelessnetwork.

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ITE PC v4.0Chapter 1 17© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Hardware and Connection Issues in Wired &Wireless Networks

Identify and describe association and authenticationissues within a wireless network.

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ITE PC v4.0Chapter 1 18© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Hardware and Connection Issues in Wired &Wireless Networks

DHCP Issues.

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ITE PC v4.0Chapter 1 19© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Hardware and Connection Issues in Wired &Wireless Networks

Troubleshooting Integrated Router to ISP connections.

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ITE PC v4.0Chapter 1 20© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions

Describe the importance of documentation

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ITE PC v4.0Chapter 1 21© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions

Using outside sources of help

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ITE PC v4.0Chapter 1 22© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions

Using the Helpdesk

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ITE PC v4.0Chapter 1 23© 2007 Cisco Systems, Inc. All rights reserved. Cisco Public

Summary

Effective troubleshooting combines instinct, experience, andstructured techniques to identify, locate, and correct network or computer problems.

Documentation is essential in effective troubleshooting, and shouldcontain baseline information about the network.

A large proportion of networking problems relate to physicalcomponents.

Many networking problems can be identified with software utilitiessuch as ping, tracert, and netstat.

In a network containing both wired and wireless connections, it isimportant to isolate the problem to either the wired or wirelessnetwork.

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