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ZONE STUDY GUIDES FOR CISCO's® CCNA™ and CCIE Security & CSS1™ EXAM

ISDN and DDR for CCNAs

This Tutorial attempts to cover all ISDN/DDR material likely to be on the CCNA exam. As a result of your ISDN studies, you should be able to answer any test questions about ISDN, PPP, and DDR. In addition to helping you pass the exam, learning ISDN well will give you a very important foundation for further progress in your internetworking knowledge and career. It's worth remembering that ATM, ISDN, and Frame Relay were all developed as part of the same standards process, a process that followed and drew from the OSI model development.


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Author: David Wolsefer

Technical Level: CCNA™ and CCIE Security & CSS1™

Date of Issue: 03-01-2023
Rating:     (Not Yet Rated)

 Table of Contents
 Tutorial

 3 Sample Study Questions
 25 Study Questions

 Lab Scenario 1 Abstract
 Lab Scenario 1

 Lab Scenario 2 Abstract
 Lab Scenario 2


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