CCNP ONT Official Exam Certification Guide Book/CD Package
Fler böcker inom
Format
Mixed media product
Språk
Engelska
Antal sidor
373
Utgivningsdatum
2007-06-01
Upplaga
1
Förlag
CISCO PRESS
Illustrationer
illustrations
Dimensioner
240 x 192 x 29 mm
Vikt
860 g
Antal komponenter
2
Komponenter
Paperback (1), CD-ROM (1)
ISBN
9781587201769

CCNP ONT Official Exam Certification Guide Book/CD Package

Mixed media product,  Engelska, 2007-06-01

Slutsåld

  • Master all 642-845 exam topics with the official study guide
  • Assess your knowledge with chapter-opening quizzes
  • Review key concepts with foundation summaries
  • Practice with hundreds of exam questions on the CD-ROM
Amir Ranjbar, CCIE No. 8669

CCNP ONT Official Exam Certification Guide is a best of breed Cisco exam study guide that focuses specifically on the objectives for the Optimizing Converged Cisco Networks exam (642-845 ONT). Successfully passing the ONT 642-845 exam certifies that you have the knowledge and skills necessary to optimize and apply effective QoS techniques for converged networks.

CCNP ONT Official Exam Certification Guide follows a logical organization of the CCNP ONT exam objectives. Material is presented in a concise manner, focusing on increasing your retention and recall of exam topics. You can organize your exam preparation through the use of the consistent features in these chapters. Do I Know This Already? quizzes open each chapter and allow you to decide how much time you need to spend on each section. Exam topic lists and concise Foundation Summary information make referencing easy and give you a quick refresher whenever you need it. Challenging chapter-ending review questions help you assess your knowledge and reinforce key concepts.

The companion CD-ROM contains a powerful testing engine that allows you to focus on individual topic areas or take complete, timed exams. The assessment engine also tracks your performance and provides feedback on a topic-by-topic basis, presenting question-by-question remediation to the text. Well regarded for its level of detail, assessment features, and challenging review questions and exercises, this book helps you master the concepts and techniques that can enable you to succeed on the exam the first time.

Amir Ranjbar, CCIE No. 8669, is a certified Cisco instructor and an internetworking consultant. He conducts Cisco official courses such as BCMSN, BSCI, ONT, CVOICE, BGP, and MPLS for Global Knowledge, the largest Cisco training partner. Amir has a bachelors degree in computing and information science and a masters degree in knowledge-based systems from the University of Guelph in Ontario, Canada.

The official study guide helps you master all the topics on the CCNP ONT exam, including
  • Implementing a voice-over-IP (VoIP) network
  • Implementing QoS on converged networks
  • Specific IP QoS mechanisms for implementing the DiffServ QoS model
  • AutoQoS
  • Wireless security
  • Basic wireless management
Companion CD-ROM

The CD-ROM contains an electronic copy of the book and more than 200 practice questions for the ONT exam, which are all available in study mode, test mode, and flash card format.

This volume is part of the Exam Cert...
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Kundrecensioner

Övrig information

Amir Ranjbar CCIE No. 8669, is an instructor and senior network architect for Global Knowledge, Cisco's largest training partner. He is a Certified Cisco Systems Instructor and has a Bachelor's degree in Computing and Information Science and a Master's Degree in Knowledge Based Systems from the University of Guelph in Ontario, Canada. Amir is the author of the first edition of the CCNP Support Exam Certification Guide.

Innehållsförteckning

Part I Voice over IP 3

Chapter 1 Cisco VoIP Implementations 5

Do I Know This Already? Quiz 5

Foundation Topics 10

Introduction to VoIP Networks 10

    Benefits of Packet Telephony Networks 10

    Packet Telephony Components 11

    Analog Interfaces 13

    Digital Interfaces 14

    Stages of a Phone Call 15

    Distributed Versus Centralized Call Control 16

Digitizing and Packetizing Voice 19

    Basic Voice Encoding: Converting Analog to Digital 19

    Basic Voice Encoding: Converting Digital to Analog 20

    The Nyquist Theorem 21

    Quantization 22

    Compression Bandwidth Requirements and Their Comparative Qualities 24

    Digital Signal Processors 25

Encapsulating Voice Packets 27

    End-to-End Delivery of Voice 27

    Protocols Used in Voice Encapsulation 30

    Reducing Header Overhead 32

Bandwidth Calculation 34

    Impact of Voice Samples and Packet Size on Bandwidth 34

    Data Link Overhead 37

    Security and Tunneling Overhead 37

    Calculating the Total Bandwidth for a VoIP Call 39

    Effects of VAD on Bandwidth 41

Implementing VoIP Support in an Enterprise Network 42

    Enterprise Voice Implementations 42

    Voice Gateway Functions on a Cisco Router 44

    Cisco Unified CallManager Functions 45

    Enterprise IP Telephony Deployment Models 46

    Single-Site Model 46

    Multisite with Centralized Call Processing Model 46

    Multisite with Distributed Call Processing Model 47

    Clustering over WAN Model 48

    Identifying Voice Commands in IOS Configurations 48

    Call Admission Control (CAC) 49

 

Part II Quality of Service 55

 

Chapter 2 IP Quality of Service 57

Do I Know This Already? Quiz 57

Foundation Topics 62

Introduction to QoS 62

    Converged Network Issues Related to QoS 62

    Available Bandwidth 63

    End-to-End Delay 64

    Delay Variation 65

    Packet Loss 66

    Definition of QoS and the Three Steps to Implementing It 68

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