Cisco DQOS exam certification guide: IP telephony self-study by Wendell Odom

By Wendell Odom

Organize of the IP Telephony centred Certifications with the professional DQOS/QOS attempt education consultant. * grasp over 20 caliber of carrier (QoS) gains, together with either MQC-enabled and non-MQC beneficial properties * QoS function comparisons convey alterations, merits and similarities, aiding the reader establish the optimum QoS array for his or her community * Use as a connection with QoS applied sciences, and get ready for the DQOS examination with the one Cisco approved examination education bookQuality of provider (QoS) is a vital point to construction a versatile, obtainable, and effective community. Its position in a number of applied sciences underlines the necessity for many networking execs to grasp the gains that enforce QoS. QoS, and particularly the QoS gains that an IT specialist implements on diversified applied sciences, is helping prioritize and advisor site visitors flows in a way that maximizes the buyer event. This prioritization is only one component of QoS, and diverse positive aspects can be utilized to figure out this circulation. As extra advanced applied sciences like Voice over IP are applied on networks, QoS turns into extra very important. this is often very true whilst those applied sciences raise the variety of these having access to and utilizing the community.

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Extra info for Cisco DQOS exam certification guide: IP telephony self-study

Example text

QoS Tools That Affect Delay Several QoS features can help with delay issues. You’ll find more detail about each of these tools in various chapters throughout this book. For now, however, knowing what each class of QoS tool accomplishes will help you sift through some of the details. The best QoS tool for delay issues is . . more bandwidth—again! More bandwidth helps bandwidth-related problems, and it also helps delay-related problems. Faster bandwidth decreases serialization delay. Because packets exit more quickly, queuing delay decreases.

When reading each chapter, use the “Do I Know This Already Quiz” to determine how much time you need to spend on that chapter’s topics. These chapter-beginning quizzes are designed to help you plan how to best use your time when studying for the exam. Make sure that you do not “guess” the answers when using these quizzes, because it is important that you give yourself an accurate score for the purposes of determing how to best spend your time. • Use the test engine on the CD-ROM after you have completed your study.

You should still consider the general advice listed in the section desscribing the study plan for the DQOS exam, but you should also consider the information in Table I-6 for the best use of your study time. Table I-6 Deviations from Just Reading the Book Cover-to-Cover When Preparing for the QOS Exam Book Chapter Suggested Deviation as compared with DQOS study plan 1 None; read and study the entire chapter 2 None; read and study the entire chapter 3 Read and study the entire chapter; then go to Appendix B, and read the section about QoS Policy Propagation with BGP (QPPB).

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