Download or read book Implementing Cisco Unified Communications Manager written by Josh Finke and published by Cisco Press. This book was released on 2012 with total page 496 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rev. ed. of: Implementing Cisco Unified Communications Manager: authorized self-study guide / Dennis Hartmann, Chris Olsen. c2008-c2009.

Download or read book Implementing Cisco IP Routing ROUTE Foundation Learning Guide written by Diane Teare and published by Pearson Education. This book was released on 2010 with total page 1066 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implementing Cisco IP Routing (ROUTE) Foundation Learning Guide is ideal for certification candidates who are seeking a tool to learn all the topics covered in the ROUTE 642-902 exam --Book Jacket.

Download or read book Implementing Cisco Unified Communications Manager Part 2 CIPT2 Foundation Learning Guide written by Chris Olsen and published by Cisco Press. This book was released on 2011-08-01 with total page 414 pages. Available in PDF, EPUB and Kindle. Book excerpt: Implementing Cisco Unified Communications Manager, Part 2 (CIPT2), Second Edition is a Cisco®-authorized, self-paced learning tool for CCNP Voice® foundation learning. This book provides you with the knowledge needed to install and configure a Cisco Unified Communications Manager solution in a multisite environment. By reading this book, you will gain a thorough understanding of how to apply a dial plan for a multisite environment, configure survivability for remote sites during WAN failure, and implement solutions to reduce bandwidth requirements in the IP WAN. This book focuses on Cisco Unified Communications Manager (CUCM) Release 8.x, the call routing and signaling component for the Cisco Unified Communications solution. The book has been fully updated and includes new coverage of topics such as Service Advertisement Framework (SAF), and Call Control Discovery (CCD). Whether you are preparing for CCNP Voice certification or simply want to gain a better understanding of deploying Cisco Unified Communications Manager in a multisite environment, you will benefit from the foundation information presented in this book. Implementing Cisco Unified Communications Manager, Part 2 (CIPT2), Second Edition, is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. Chris Olsen, CCVP, and CCNP, along with numerous other Cisco voice specializations, Microsoft, VMware, and Novell certifications, has been an independent IT and telephony consultant, author, and technical editor for more than 15 years. He has been a technical trainer for more than 19 years and has taught more than 60 different courses in Cisco, Microsoft, VMware, and Novell. For the last seven years he has specialized in Cisco, and recently Microsoft Unified Communications along with VMware virtualization and Cisco data center technologies. He has done a wide array of IT and telephony consulting for many different companies. · Identify multisite issues and deployment solutions · Implement multisite connections · Apply dial plans for multisite deployments · Examine remote site redundancy options · Implement Survivable Remote Site Telephony (SRST) and Media Gateway Control Protocol (MGCP) Fallback · Implement CUCM Express in SRST mode · Implement bandwidth management and call admission control (CAC) · Configure device and extension mobility · Apply Service Advertisement Framework (SAF) and Call Control Discovery (CCD) This volume is in the Foundation Learning Guide Series offered by Cisco Press®. These guides are developed together with Cisco as the only authorized, self-paced learning tools that help networking professionals build their understanding of networking concepts and prepare for Cisco certification exams.

Download or read book CCNA Routing and Switching Review Guide written by Todd Lammle and published by John Wiley & Sons. This book was released on 2014-01-13 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Todd Lammle's focused, concise review guide, updated for the latest CCNA exams CCNA is one of the most sought after certifications for IT professionals. If you're preparing for the CCNA Routing and Switching certification, this Sybex review guide offers the best quick review available. Organized by exam objective, it’s the perfect supplement to other learning tools, including the Sybex CCNA Routing and Switching Study Guide (ISBN: 9781118749616). All exam topics from exams 100-101, 200-101, and 200-120 are thoroughly covered, and additional study materials including bonus exams, electronic flashcards, and a searchable glossary of terms are also available. Organized by exam objectives, this Sybex review guide provides a thorough and intensive review of all topics required for the CCNA Routing and Switching certification exams Lead author Todd Lammle is a Cisco networking authority and the bestselling author of numerous Cisco exam-prep books Covers exams 100-101, 200-101, and 200-120, and is a perfect companion to Sybex’s CCNA Routing and Switching Study Guide Additional study materials are available, including bonus practice exams, electronic flashcard questions, and a glossary of terms in searchable PDF form Using the CCNA Routing and Switching Review Guide will boost your confidence as you approach exams 100-101, 200-101, and 200-120.

Download or read book Authorized Self study Guide Building Scalable Cisco Internetworks BSCI written by Diane Teare and published by Cisco Systems. This book was released on 2007-01 with total page 818 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authorized Self-Study Guide: Building Scalable Cisco Internetworks (BSCI), Third Edition, is a Cisco-authorized, self-paced learning tool for learning how to design, configure, maintain, and scale routed networks that are growing in size and complexity. This book also provides complete coverage of the BSCI exam topics, and supplemental online appendixes include helpful aids, background material, supplementary details, and a summary of the Cisco IOS router commands used.

Download or read book The Woman in the Zoot Suit written by Catherine S. Ramírez and published by Duke University Press. This book was released on 2009-01-16 with total page 258 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Mexican American woman zoot suiter, or pachuca, often wore a V-neck sweater or a long, broad-shouldered coat, a knee-length pleated skirt, fishnet stockings or bobby socks, platform heels or saddle shoes, dark lipstick, and a bouffant. Or she donned the same style of zoot suit that her male counterparts wore. With their striking attire, pachucos and pachucas represented a new generation of Mexican American youth, which arrived on the public scene in the 1940s. Yet while pachucos have often been the subject of literature, visual art, and scholarship, The Woman in the Zoot Suit is the first book focused on pachucas. Two events in wartime Los Angeles thrust young Mexican American zoot suiters into the media spotlight. In the Sleepy Lagoon incident, a man was murdered during a mass brawl in August 1942. Twenty-two young men, all but one of Mexican descent, were tried and convicted of the crime. In the Zoot Suit Riots of June 1943, white servicemen attacked young zoot suiters, particularly Mexican Americans, throughout Los Angeles. The Chicano movement of the 1960s–1980s cast these events as key moments in the political awakening of Mexican Americans and pachucos as exemplars of Chicano identity, resistance, and style. While pachucas and other Mexican American women figured in the two incidents, they were barely acknowledged in later Chicano movement narratives. Catherine S. Ramírez draws on interviews she conducted with Mexican American women who came of age in Los Angeles in the late 1930s, 1940s, and 1950s as she recovers the neglected stories of pachucas. Investigating their relative absence in scholarly and artistic works, she argues that both wartime U.S. culture and the Chicano movement rejected pachucas because they threatened traditional gender roles. Ramírez reveals how pachucas challenged dominant notions of Mexican American and Chicano identity, how feminists have reinterpreted la pachuca, and how attention to an overlooked figure can disclose much about history making, nationalism, and resistant identities.

Download or read book CCDA 640 864 Official Cert Guide written by Anthony Bruno and published by Cisco Press. This book was released on 2011-06-09 with total page 859 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the eBook version of the print title. Note that the eBook does not provide access to the practice test software that accompanies the print book. Trust the best selling Official Cert Guide series from Cisco Press to help you learn, prepare, and practice for exam success. They are built with the objective of providing assessment, review, and practice to help ensure you are fully prepared for your certification exam. CCDA 640-864 Official Cert Guide presents you with an organized test preparation routine through the use of proven series elements and techniques. “Do I Know This Already?” quizzes open each chapter and enable you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly. Master Cisco CCDA 640-864 exam topics Assess your knowledge with chapter-opening quizzes Review key concepts with exam preparation tasks CCDA 640-864 Official Cert Guide, focuses specifically on the objectives for the Cisco CCDA DESGN exam. Expert networking consultants Anthony Bruno and Steve Jordan share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. Well-regarded for its level of detail, assessment features, comprehensive design scenarios, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time. The official study guide helps you master all the topics on the CCDA DESGN exam, including: Network design methodology Network structure models Enterprise LAN and data center design Enterprise network virtualization Wireless LAN design WAN technologies and design IPv4 and IPv6 RIP, EIGRP, OSPF, and BGP Route summarization and route filtering Security solutions Voice and video design Network management protocols CCDA 640-864 Official Cert Guide is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining.

Download or read book CCNP Security IPS 642 627 Official Cert Guide written by David Burns and published by Cisco Press. This book was released on 2012 with total page 737 pages. Available in PDF, EPUB and Kindle. Book excerpt: CCNP Security IPS 642-627 Official Cert Guide David Burns Odunayo Adesina, CCIE� No. 26695 Keith Barker, CCIE No. 6783 . Master CCNP Security IPS 642-627 exam topics . Assess your knowledge with chapter-opening quizzes . Review key concepts with exam preparation tasks . Practice with realistic exam questions on the CD-ROM Learn, prepare, and practice for exam success CCNP Security IPS 642-627 Official Cert Guide is a best-of-breed Cisco exam study guide that focuses specifically on the objectives for the CCNP Security IPS exam. Senior security engineers David Burns, Odunayo Adesina, and Keith Barker share preparation hints and test-taking tips, helping you identify areas of weakness and improve both your conceptual knowledge and hands-on skills. Material is presented in a concise manner, focusing on increasing your understanding and retention of exam topics. CCNP Security IPS 642-627 Official Cert Guide presents you with an organized test-preparation routine through the use of proven series elements and techniques. "Do I Know This Already?" quizzes open each chapter and enable you to decide how much time you need to spend on each section. Exam topic lists make referencing easy. Chapter-ending Exam Preparation Tasks help you drill on key concepts you must know thoroughly. The companion CD-ROM contains the powerful Pearson IT Certification Practice Test engine that enables you to focus on individual topic areas or take a complete, timed exam. The assessment engine also tracks your performance and provides feedback on a module-by-module basis, laying out a complete assessment of your knowledge to help you focus your study where it is needed most. Well-regarded for its level of detail, assessment features, and challenging review questions and exercises, this official study guide helps you master the concepts and techniques that will enable you to succeed on the exam the first time. CCNP Security IPS 642-627 Official Cert Guide is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. The official study guide helps you master all the topics on the CCNP Security IPS exam, including Cisco IPS software, hardware, and supporting applications Network IPS and IDS deployment architecture Installing and maintaining Cisco IPS physical and virtual sensors Traffic analysis IPS signatures and responses Anomaly-based operations Improving alarm response and quality Managing and analyzing events High availability and performance IPS modules for ASAs, routers, and switches Companion CD-ROM The CD-ROM contains a free, complete practice exam. Includes Exclusive Offer for 70% Off Premium Edition eBook and Practice Test Pearson IT Certification Practice Test minimum system requirements: Windows XP (SP3), Windows Vista (SP2), or Windows 7; Microsoft .NET Framework 4.0 Client; Microsoft SQL Server Compact 4.0; Pentium class 1GHz processor (or equivalent); 512 MB RAM; 650 MB disc space plus 50 MB for each downloaded practice exam CCNP Security Category: Cisco Press-Cisco Certification Covers: CCNP Security IPS 642-627

Download or read book Advanced Wireless LAN written by Song Guo and published by BoD – Books on Demand. This book was released on 2012-06-05 with total page 150 pages. Available in PDF, EPUB and Kindle. Book excerpt: The past two decades have witnessed starling advances in wireless LAN technologies that were stimulated by its increasing popularity in the home due to ease of installation, and in commercial complexes offering wireless access to their customers. This book presents some of the latest development status of wireless LAN, covering the topics on physical layer, MAC layer, QoS and systems. It provides an opportunity for both practitioners and researchers to explore the problems that arise in the rapidly developed technologies in wireless LAN.

Download or read book From Out of the Shadows written by Vicki Ruíz and published by OUP USA. This book was released on 2008-11-05 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt: An anniversary edition of the first full study of Mexican American women in the twentieth century, with new preface

Download or read book Exam 70 411 Administering Windows Server 2012 written by Microsoft Official Academic Course and published by John Wiley & Sons. This book was released on 2013-04-02 with total page 720 pages. Available in PDF, EPUB and Kindle. Book excerpt: This 70-411 Administering Windows Server 2012 textbook covers the second of three exams required for Microsoft Certified Solutions Associate (MCSA): Windows Server 2012 certification. This course will help validate the skills and knowledge necessary to administer a Windows Server 2012 Infrastructure in an enterprise environment. The three MCSA exams collectively validate the skills and knowledge necessary for implementing, managing, maintaining, and provisioning services and infrastructure in a Windows Server 2012 environment. This Microsoft Official Academic Course is mapped to the 70-411 Administering Windows Server 2012 exam objectives. This textbook focuses on real skills for real jobs and prepares students to prove mastery of core services such as user and group management, network access, and data security. In addition, this book also covers such valuable skills as: • Implementing a Group Policy Infrastructure • Managing User and Service Accounts • Maintaining Active Directory Domain Services • Configuring and Troubleshooting DNS • Configuring and Troubleshooting Remote Access • Installing, Configuring, and Troubleshooting the Network Policy Server Role • Optimizing File Services • Increasing File System Security • Implementing Update Management The MOAC IT Professional series is the Official from Microsoft, turn-key Workforce training program that leads to professional certification and was authored for college instructors and college students. MOAC gets instructors ready to teach and students ready for work by delivering essential resources in 5 key areas: Instructor readiness, student software, student assessment, instruction resources, and learning validation. With the Microsoft Official Academic course program, you are getting instructional support from Microsoft; materials that are accurate and make course delivery easy. Request your sample materials today.

Download or read book Enterprise Networking Security and Automation Companion Guide CCNAv7 written by Cisco Networking Academy and published by Cisco Press. This book was released on 2020-07-08 with total page 1502 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enterprise Networking, Security, and Automation Companion Guide is the official supplemental textbook for the Enterprise Networking, Security, and Automation v7 course in the Cisco Networking Academy CCNA curriculum. This course describes the architectures and considerations related to designing, securing, operating, and troubleshooting enterprise networks. You will implement the OSPF dynamic routing protocol, identify and protect against cybersecurity threats, configure access control lists (ACLs), implement Network Address Translation (NAT), and learn about WANs and IPsec VPNs. You will also learn about QoS mechanisms, network management tools, network virtualization, and network automation. The Companion Guide is designed as a portable desk reference to use anytime, anywhere to reinforce the material from the course and organize your time. The book's features help you focus on important concepts to succeed in this course: * Chapter objectives: Review core concepts by answering the focus questions listed at the beginning of each chapter. * Key terms: Refer to the lists of networking vocabulary introduced and highlighted in context in each chapter. * Glossary: Consult the comprehensive Glossary with more than 500 terms. * Summary of Activities and Labs: Maximize your study time with this complete list of all associated practice exercises at the end of each chapter. * Check Your Understanding: Evaluate your readiness with the end-of-chapter questions that match the style of questions you see in the online course quizzes. The answer key explains each answer. How To: Look for this icon to study the steps you need to learn to perform certain tasks. Interactive Activities: Reinforce your understanding of topics with dozens of exercises from the online course identified throughout the book with this icon. Videos: Watch the videos embedded within the online course. Packet Tracer Activities: Explore and visualize networking concepts using Packet Tracer exercises interspersed throughout the chapters and provided in the accompanying Labs & Study Guide book. Hands-on Labs: Work through all the course labs and additional Class Activities that are included in the course and published in the separate Labs & Study Guide. This book is offered exclusively for students enrolled in Cisco Networking Academy courses. It is not designed for independent study or professional certification preparation. Visit netacad.com to learn more about program options and requirements. Related titles: CCNA 200-301 Portable Command Guide Book: 9780135937822 eBook: 9780135937709 31 Days Before Your CCNA Exam Book: 9780135964088 eBook: 9780135964231 CCNA 200-301 Official Cert Guide, Volume 1 Book: 9780135792735 Premium Edition: 9780135792728 CCNA 200-301 Official Cert Guide, Volume 2 Book: 9781587147135 Premium Edition: 9780135262719

Download or read book General Physics written by Sternheim and published by Wiley. This book was released on 1991-08-21 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Routing Video Mentor written by Kevin Wallace and published by . This book was released on 2009 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Routing Video Mentor More than six hours of personal, visual instruction Covers CCNP routing exam topics Kevin Wallace, CCIE No. 7945 Routing Video Mentoris a unique video product that provides you with more than six hours of personal, visual instruction from bestselling author and senior instructor Kevin Wallace. In the 15 videos presented on the DVD, Kevin walks you through common Cisco router configuration and troubleshooting tasks. Designed to develop and enhance hands-on skills, each 15 to 40 minute video guides you through essential configuration tasks on Cisco routers and shows you how to verify that your network is working correctly. Lab Layout: Each video lab presents detailed objectives, lab diagrams, command tables, and video captures. Audio instruction throughout offers tips and shortcuts that truly make learning easy. Network Animation: Animated network diagrams show you lab setup, device addressing, and how traffic flows through the network. Command-Line Interface (CLI) Video: Video screencasts of router CLI demonstrate command entry, configuration techniques, and device response. “Routing Video Mentor is an excellent approach to learning how to configure Cisco routers. These videos take you from the simplest protocols to the most complex in an easy-to-follow format. This is a great product for both beginners and advanced network engineers looking to learn or to update their skills.†– Michelle Plumb, Technical Instructor, SkillSoft System Requirements: – Microsoft Windows XP, 2000, or Vista – Apple OS 9 or later – Linux operating systems that have a web browser with Flash 7 or later plug-in – Speakers or headphones – Color display with a minimum 1024x768 resolution – 1 GHz or faster CPU recommended – DVD drive This video product is part of the Cisco Press Video Mentor Series. The video products in this series present expert training from industry-leading instructors and technologists. This dynamic learning environment combines animations, screencasts, and audio instruction to help users bridge the gap between conceptual knowledge and hands on application. Category: Routing and Switching Covers: Router Configuration and Troubleshooting $69.99 USA / $83.99 CAN

Download or read book Implementing Cisco IP Telephony and Video Part 1 CIPTV1 Foundation Learning Guide CCNP Collaboration Exam 300 070 CIPTV1 written by Akhil Behl and published by Cisco Press. This book was released on 2016-09-29 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Now fully updated for Cisco’s new CIPTV1 300-070 exam Implementing Cisco IP Telephony and Video, Part 1(CIPTV1) Foundation Learning Guide is your Cisco® authorized learning tool for CCNP® Collaboration preparation. Part of the Cisco Press Foundation Learning Series, it teaches essential knowledge and skills for building and maintaining a robust and scalable Cisco Collaboration solution. The authors focus on deploying the Cisco Unified Communications Manager (CUCM), CUCM features, CUCM based call routing, Cisco IOS Voice Gateways, Cisco Unified Border Element (CUBE), and Quality of Service (QoS). They introduce each key challenge associated with configuring CUCM, implementing gateways and CUBE, and building dial plans to place on-net and off-net calls using traditional numbered dial plans and Uniform Resource Identifiers (URIs). They show how to implement conferencing and other media resources, and prepare you to apply QoS features for voice and video. Each chapter opens with a topic list that clearly identifies its focus, ends with a quick-study summary of key concepts, and presents review questions to assess and reinforce your understanding. The authors present Cisco best practices, and illustrate operations and problem solving via realistic examples. This guide is ideal for all certification candidates who want to master all the topics covered on the CIPTV1 300-070 exam. The official book for Cisco Networking Academy’s new CCNP CIPTV1 course includes all new Learning@ Cisco CIPTV1 e-Learning course content: Covers CUCM architecture, deployment models, and tradeoffs Walks through bringing CUCM online, deploying endpoints, and setting up users Explains how to create a solid IP Phone foundation for advanced services Covers dial plan elements, design, and implementation Reviews key call routing elements Explains digit manipulation Shows how to control user access Discusses audio/video resources and videoconferencing Covers QoS tools and preferential call handling Explains external connections via Cisco IOS Voice Gateways and CUBE Streamlines review with clear summaries, assessment questions, and objectives

Download or read book Implementing Cisco Unified Communications Manager Part 2 CIPT2 Authorized Self Study Guide written by Chris Olsen and published by Pearson Education. This book was released on 2008-10-09 with total page 649 pages. Available in PDF, EPUB and Kindle. Book excerpt: Authorized Self-Study Guide Implementing Cisco Unified Communications Manager Part 2 (CIPT2) Foundation learning for CIPT2 exam 642-456 Chris Olsen Implementing Cisco Unified Communications Manager, Part 2 (CIPT2), is a Cisco®-authorized, self-paced learning tool for CCVP® foundation learning. This book provides you with the knowledge needed to install and configure a Cisco Unified Communications Manager solution in a multisite environment. By reading this book, you will gain a thorough understanding of how to apply a dial plan for a multisite environment, configure survivability for remote sites during WAN failure, implement solutions to reduce bandwidth requirements in the IP WAN, enable Call Admission Control (CAC) and automated alternate routing (AAR), and implement device mobility, extension mobility, Cisco Unified Mobility, and voice security. This book focuses on Cisco Unified CallManager Release 6.0, the call routing and signaling component for the Cisco Unified Communications solution. It also includes H.323 and Media Gateway Control Protocol (MGCP) gateway implementation, the use of a Cisco Unified Border Element, and configuration of Survivable Remote Site Telephony (SRST), different mobility features, and voice security. Whether you are preparing for CCVP certification or simply want to gain a better understanding of deploying Cisco Unified Communications Manager in a multisite environment, you will benefit from the foundation information presented in this book. Implementing Cisco Unified Communications Manager, Part 2 (CIPT2), is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit www.cisco.com/go/authorizedtraining. Chris Olsen is the president and founder of System Architects, Inc., a training and consulting firm specializing in Cisco, Microsoft, and Novell networking; IP telephony; and information technologies. Chris has been teaching and consulting in the networking arena for more than 15 years. He currently holds his CCNA®, CCDA®, CCNP®, and CCVP certifications, as well as various Microsoft certifications. Identify multisite issues and deployment solutions Implement multisite connections Apply dial plans for multisite deployments Examine remote site redundancy options Deploy Cisco Unified Communications Manager Expressin SRST mode Implement bandwidth management, call admission control (CAC), and call applications on Cisco IOS® gateways Configure device, extension mobility, and Cisco unified mobility Understand cryptographic fundamentals and PKI Implement security in Cisco Unified Communications Manager This volume is in the Certification Self-Study Series offered by Cisco Press®. Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations. Category: Cisco Unified Communications Manager 6.0 Covers: CIPT2 Exam 642-456

Download or read book Implementing Cisco Unified Communications Manager written by Chris Olsen and published by . This book was released on 2011 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: