Cisco Introduction to Networks Module 1 – Networking Fundamentals Study Guide

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Cisco Introduction to Networks
Module 1 | Networking Fundamentals
Study Guide




Cisco Introduction to Networks Module
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How do intermediary devices determine the path that messages should take through the
network?


Intermediary devices use the destination end device address, in conjunction with
information about the network interconnections, to determine the path that messages
should take through the network.


Name some intermediary devices:


wireless router, LAN switch, router, multilayer switch, firewall appliance




Cisco Introduction to Networks Module 1.pdf Cisco Introduction to Networks Module 1.pdf Cisco Introduction to Networks Module 1

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Intermediary network devices perform some or all of these functions:


Regenerate and retransmit communication signals
Maintain information about what pathways exist through the network and internetwork
Notify other devices of errors and communication failures
Direct data along alternate pathways when there is a link failure
Classify and direct messages according to priorities
Permit or deny the flow of data, based on security settings




Cisco Introduction to Networks Module 1.pdf Cisco Introduction to Networks Module 1.pdf Cisco Introduction to Networks Module 1