Ben Piper - CCNP Enterprise Certification Study Guide - Implementing and Operating Cisco Enterprise Network Core Technologies

Ben Piper

Copyright © 2020 by John Wiley & Sons, Inc., Indianapolis, Indiana

ISBN: 978-1-119-65875-7

ISBN: 978-1-119-65882-5 (ebk.)

ISBN: 978-1-119-65880-1 (ebk.)

Manufactured in the United States of America

No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic, mechanical, photocopying, recording, scanning or otherwise, except as permitted under Sections 107 or 108 of the 1976 United States Copyright Act, without either the prior written permission of the Publisher, or authorization through payment of the appropriate per-copy fee to the Copyright Clearance Center, 222 Rosewood Drive, Danvers, MA 01923, (978) 750-8400, fax (978) 6468600. Requests to the Publisher for permission should be addressed to the Permissions Department, John Wiley & Sons, Inc., 111 River Street, Hoboken, NJ 07030, (201) 748-6011, fax (201) 748-6008, or online at http://www.wiley.com/go/permissions.

Limit of Liability/Disclaimer of Warranty: The publisher and the author make no representations or warranties with respect to the accuracy or completeness of the contents of this work and specifically disclaim all warranties, including without limitation warranties of fitness for a particular purpose. No warranty may be created or extended by sales or promotional materials. The advice and strategies contained herein may not be suitable for every situation. This work is sold with the understanding that the publisher is not engaged in rendering legal, accounting, or other professional services. If professional assistance is required, the services of a competent professional person should be sought. Neither the publisher nor the author shall be liable for damages arising herefrom. The fact that an organization or Web site is referred to in this work as a citation and/or a potential source of further information does not mean that the author or the publisher endorses the information the organization or Web site may provide or recommendations it may make. Further, readers should be aware that Internet Web sites listed in this work may have changed or disappeared between when this work was written and when it is read.

For general information on our other products and services or to obtain technical support, please contact our Customer Care Department within the U.S. at (877) 762-2974, outside the U.S. at (317) 572-3993 or fax (317) 572-4002.

Wiley publishes in a variety of print and electronic formats and by print-on-demand. Some material included with standard print versions of this book may not be included in e-books or in print-on-demand. If this book refers to media such as a CD or DVD that is not included in the version you purchased, you may download this material at http://booksupport.wiley.com. For more information about Wiley products, visit www.wiley.com.

Library of Congress Control Number: 2020935632

TRADEMARKS: Wiley, the Wiley logo, and the Sybex logo are trademarks or registered trademarks of John Wiley & Sons, Inc. and/or its affiliates, in the United States and other countries, and may not be used without written permission. CCNP is a registered trademark of Cisco Technology, Inc. All other trademarks are the property of their respective owners. John Wiley & Sons, Inc. is not associated with any product or vendor mentioned in this book.

I dedicate this book to the Lord Jesus Christ through Whom all things were created and in Whom all things hold together

I’d like to thank the following people who helped create this CCNP Enterprise Certification Study Guide : Exam 350-401 . A special thanks to Kenyon Brown, senior acquisitions editor, for the opportunity to write this book. Thanks to John Sleeva, project editor, for pushing me to meet my deadlines. His suggestions and edits helped make this book more user friendly. Thanks also go to Christine O’Connor, production editor; Pete Gaughan, content enablement manager; and Louise Watson at Word One, proofreader. Jon Buhagiar reviewed the chapters and questions for technical accuracy. His comments guided by his expertise helped make this book more practical, accurate, and well rounded.

Ben Piper is a networking and cloud consultant who has authored multiple books including the AWS Certified Solutions Architect Study Guide: Associate SAA-C01 Exam, Second Edition (Sybex, 2019), AWS Certified Cloud Practitioner Study Guide: Foundational CLF-C01 Exam (Sybex, 2019), and Learn Cisco Network Administration in a Month of Lunches (Manning, 2017). You can contact Ben by visiting his website https://benpiper.com.

1 Cover

2 Acknowledgments Acknowledgments I’d like to thank the following people who helped create this CCNP Enterprise Certification Study Guide : Exam 350-401 . A special thanks to Kenyon Brown, senior acquisitions editor, for the opportunity to write this book. Thanks to John Sleeva, project editor, for pushing me to meet my deadlines. His suggestions and edits helped make this book more user friendly. Thanks also go to Christine O’Connor, production editor; Pete Gaughan, content enablement manager; and Louise Watson at Word One, proofreader. Jon Buhagiar reviewed the chapters and questions for technical accuracy. His comments guided by his expertise helped make this book more practical, accurate, and well rounded.

3 About the Author About the Author Ben Piper is a networking and cloud consultant who has authored multiple books including the AWS Certified Solutions Architect Study Guide: Associate SAA-C01 Exam, Second Edition (Sybex, 2019), AWS Certified Cloud Practitioner Study Guide: Foundational CLF-C01 Exam (Sybex, 2019), and Learn Cisco Network Administration in a Month of Lunches (Manning, 2017). You can contact Ben by visiting his website https://benpiper.com .

4 Introduction Introduction Networking is uniquely challenging in that it's not a single technology, but a collection of interdependent technologies that every other aspect of IT depends on. Without networking, there are no connected applications and that means there are no IT employees. Even if you're not sure that you want networking to become your permanent career, becoming an expert at networking will open the doors for other in-demand areas of IT, including security, software development, and cloud computing. What Does This Book Cover? Interactive Online Learning Environment and Test Bank Exam Objectives Objective Map Assessment Test Answers to Assessment Test

5 Chapter 1: Networking Fundamentals The OSI Model Layer 1: The Physical Layer Layer 2: The Data Link Layer Layer 3: The Network Layer Layer 4: The Transport Layer Summary Exam Essentials Review Questions

6 Chapter 2: Spanning Tree Protocols The Need for Spanning Tree VLANs and Trunking Rapid Per-VLAN Spanning Tree Multiple Spanning Tree Spanning Tree Extensions Summary Exam Essentials Exercises Review Questions