100% complete coverage of all objectives for exam RH302 Exam Readiness Checklist at the front of the book--you're ready for the exam when all objectives on the list are checked off Inside the Exam sections in every chapter highlight key exam topics covered Real-world exercises modeled after hands-on exam scenarios Two complete lab-based exams simulate the format, tone, topics, and difficulty of the real exam Bonus content (available for download) includes installation screen review, basic instructions for using VMware and Xen as testbeds, and paper and pencil versions of the lab exams Covers all RH302 exam topics, including: Hardware installation and configuration The boot process Linux filesystem administration Package management and Kickstart User and group administration System administration tools Kernel services and configuration Apache and Squid Network file sharing services (NFS, FTP, and Samba) Domain Name System (DNS) E-mail (servers and clients) Extended Internet Services Daemon (xinetd), the Secure package, and DHCP The X Window System Firewalls, SELinux, and troubleshooting

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    In this book, you’ll learn how many of the most fundamental data science tools and algorithms work by implementing them from scratch. If you have an aptitude for mathematics and some programming skills, author Joel Grus will help you get comfortable with the math and statistics at the core of data science, and with hacking skills you need to get started as a data scientist. Today’s messy glut of data holds answers to questions no one’s even thought to ask. This book provides you with the know-how to dig those answers out. Get a crash course in Python Learn the basics of linear algebra, statistics, and probability—and understand how and when they're used in data science Collect, explore, clean, munge, and manipulate data Dive into the fundamentals of machine learning Implement models such as k-nearest Neighbors, Naive Bayes, linear and logistic regression, decision trees, neural networks, and clustering Explore recommender systems, natural language processing, network analysis, MapReduce, and databases

    It takes into account recent changes such as ubiquitous connectivity, open-source technology, mobile devices, and personalization to dramatically shift how schools have been run and structured for over a century.  Leading in education becomes exponentially powerful when using technology to your advantage.Eric Sheninger—“Principal Twitter”—shares his Pillars of Digital Leadership to help readers Transform school culture by initiating sustainable change Use free social media tools to improve communication, enhance public relations, and create a positive brand presence  Integrate digital tools into the classroom to increase student engagement and achievement Facilitate professional learning and access new opportunities and resources The time is now, whether you are a building level or teacher leader, to boldly move schools forward in the digital age.

    The Passionate Teacher draws on voices, stories, and successes of teachers in urban, suburban, and rural classrooms to help you become, and remain, a passionate teacher despite the obstacles. This edition includes a new chapter for teachers beginning their careers

    More and more frequently, ScrumMasters and project managers are being asked to coach agile teams. But it's a challenging role. It requires new skills--as well as a subtle understanding of when to step in and when to step back. Migrating from "command and control" to agile coaching requires a whole new mind-set. In Coaching Agile Teams, Lyssa Adkins gives agile coaches the insights they need to adopt this new mind-set and to guide teams to extraordinary performance in a re-energized work environment. You'll gain a deep view into the role of the agile coach, discover what works and what doesn't, and learn how to adapt powerful skills from many allied disciplines, including the fields of professional coaching and mentoring. Coverage includes Understanding what it takes to be a great agile coach Mastering all of the agile coach's roles: teacher, mentor, problem solver, conflict navigator, and performance coach Creating an environment where self-organized, high-performance teams can emerge Coaching teams past cooperation and into full collaboration Evolving your leadership style as your team grows and changes Staying actively engaged without dominating your team and stunting its growth Recognizing failure, recovery, and success modes in your coaching Getting the most out of your own personal agile coaching journey Whether you're an agile coach, leader, trainer, mentor, facilitator, ScrumMaster, project manager, product owner, or team member, this book will help you become skilled at helping others become truly great. What could possibly be more rewarding?

    If you're one of them, The Scrum Field Guide will give you skills and confidence to adopt Scrum more rapidly, more successfully, and with far less pain and fear. Long-time Scrum practitioner Mitch Lacey identifies major challenges associated with early-stage Scrum adoption, as well as deeper issues that emerge after companies have adopted Scrum, and describes how other organizations have overcome them. You'll learn how to gain "quick wins" that build support, and then use the flexibility of Scrum to maximize value creation across the entire process. In 30 brief, engaging chapters, Lacey guides you through everything from defining roles to setting priorities to determining team velocity, choosing a sprint length, and conducting customer reviews. Along the way, he explains why Scrum can seem counterintuitive, offers a solid grounding in the core agile concepts that make it work, and shows where it can (and shouldn't) be modified. Coverage includes Getting teams on board, and bringing new team members aboard after you've started Creating a "definition of done" for the team and organization Implementing the strong technical practices that are indispensable for agile success Balancing predictability and adaptability in release planning Keeping defects in check Running productive daily standup meetings Keeping people engaged with pair programming Managing culture clashes on Scrum teams Performing "emergency procedures" to get sprints back on track Establishing a pace your team can truly sustain Accurately costing projects, and measuring the value they deliver Documenting Scrum projects effectively Prioritizing and estimating large backlogs Integrating outsourced and offshored components Packed with real-world examples from Lacey's own experience, this book is invaluable to everyone transitioning to agile: developers, architects, testers, managers, and project owners alike.

    On the last day of summer, an ordinary Utah college student named Reggie Shaw fatally struck two rocket scientists while texting and driving along a majestic stretch of highway bordering the Rocky Mountains. Richtel follows Reggie from the moment of the tragedy, through the police investigation, the state's groundbreaking prosecution (at the time there was little precedent to guide the court), and ultimately, Reggie's wrenching admission of responsibility. Richtel parallels Reggie's journey with leading-edge scientific findings regarding human attention and the impact of technology on our brains--showing how these devices, now thoroughly embedded in all aspects of our lives, play to our deepest social instincts and prey on parts of the brain that crave stimulation, creating loops of compulsion, even addiction. A propulsive read filled with fascinating scientific detail, riveting narrative tension, and rare emotional depth, A Deadly Wandering is a book that can change--and save--lives.

    This title identifies the twelve fundamental design principles for building killer apps. It illustrates these principles with classic stories from history and examples from a range of industries that have successfully developed killer apps.

    The widespread adoption of agile methods has brought the need for effective testing into the limelight, and agile projects have transformed the role of testers. Much of a tester's function, however, remains largely misunderstood. What is the true role of a tester? Do agile teams actually need members with QA backgrounds? What does it really mean to be an "agile tester?"Two of the industry's most experienced agile testing practitioners and consultants, Lisa Crispin and Janet Gregory, have teamed up to bring you the definitive answers to these questions and many others. In Agile Testing, Crispin and Gregory define agile testing and illustrate the tester's role with examples from real agile teams. They teach you how to use the agile testing quadrants to identify what testing is needed, who should do it, and what tools might help. The book chronicles an agile software development iteration from the viewpoint of a tester and explains the seven key success factors of agile testing.Readers will come away from this book understanding- How to get testers engaged in agile development- Where testers and QA managers fit on an agile team- What to look for when hiring an agile tester- How to transition from a traditional cycle to agile development- How to complete testing activities in short iterations- How to use tests to successfully guide development- How to overcome barriers to test automationThis book is a must for agile testers, agile teams, their managers, and their customers.

    Beset from all sides by a never-ending barrage of media, how can we ensure that the most accurate information emerges and is heeded? In this book, Cass R. Sunstein develops a deeply optimisticunderstanding of the human potential to pool information, and to use that knowledge to improve our lives.In an age of information overload, it is easy to fall back on our own prejudices and insulate ourselves with comforting opinions that reaffirm our core beliefs. Crowds quickly become mobs. The justification for the Iraq war, the collapse of Enron, the explosion of the space shuttle Columbia--all ofthese resulted from decisions made by leaders and groups trapped in information cocoons, shielded from information at odds with their preconceptions. How can leaders and ordinary people challenge insular decision making and gain access to the sum of human knowledge?Stunning new ways to share and aggregate information, many Internet-based, are helping companies, schools, governments, and individuals not only to acquire, but also to create, ever-growing bodies of accurate knowledge. Through a ceaseless flurry of self-correcting exchanges, wikis, coveringeverything from politics and business plans to sports and science fiction subcultures, amass--and refine--information. Open-source software enables large numbers of people to participate in technological development. Prediction markets aggregate information in a way that allows companies, rangingfrom computer manufacturers to Hollywood studios, to make better decisions about product launches and office openings. Sunstein shows how people can assimilate aggregated information without succumbing to the dangers of the herd mentality--and when and why the new aggregation techniques are soastoundingly accurate.In a world where opinion and anecdote increasingly compete on equal footing with hard evidence, the on-line effort of many minds coming together might well provide the best path to infotopia.

    This book shows how Lean and Six Sigma methods complement each other. It outlines a program for combining the synergies of these initiatives to provide the organization with greater speed, less process variation, and more bottom-line impact.

    Readers discover the energy and excitement found in business today within the engaging and accessible presentation found in BUSN6. Designed specifically for today's learner, BUSN's streamlined, riveting design presents the entire core Introduction to Business topics in only seventeen succinct chapters, including a unique chapter on Business Communication. BUSN6 directly connects readers with what's happening in business today and how it will affect them. The book focuses on business principles most important to the learner's success with less reading, more visuals, and manageable chunks of information. Memorable examples relate business topics to everyday life and career success, while tightly integrated resources, such as CourseMate, an interactive teaching and learning solution, and the latest news feeds, help sharpen business, study, and communication skills. CenageNOW is now offered with BUSN 6e.

    Yet, managing human beings and navigating complex product roadmaps is no easy task, and it's rare to find a product leader who can steward a digital product from concept to launch without a couple of major hiccups. Why do some product leaders succeed while others don't?This insightful book presents interviews with nearly 100 leading product managers from all over the world. Authors Richard Banfield, Martin Eriksson, and Nate Walkingshaw draw on decades of experience in product design and development to capture the approaches, styles, insights, and techniques of successful product managers. If you want to understand what drives good product leaders, this book is an irreplaceable resource.In three parts, Product Leadership helps you explore:Themes and patterns of successful teams and their leaders, and ways to attain those characteristicsThe best approaches for guiding your product team through the startup, emerging, and enterprise stages of a company's evolutionStrategies and tactics for working with customers, agencies, partners, and external stakeholders