Handbook on Evaluation PDF Download

Author: Reinhard Stockmann
Publisher: Edward Elgar Publishing
ISBN: 1035321483
Category : Social Science
Languages : en
Pages : 421

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Book Description
In this Handbook, Reinhard Stockmann and other esteemed experts in the field provide a systematic and comprehensive exploration into the planning, process, implementation and utilisation of evaluations. Covering the process and individual steps of evaluation in detail, in chronological order and in terms of practical application, it identifies the characteristics and standards that distinguish a professionally and competently conducted evaluation.

Author: Brendan Gregg
Publisher: Pearson Education
ISBN: 0133390098
Category : Business & Economics
Languages : en
Pages : 777

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Book Description
The Complete Guide to Optimizing Systems Performance Written by the winner of the 2013 LISA Award for Outstanding Achievement in System Administration Large-scale enterprise, cloud, and virtualized computing systems have introduced serious performance challenges. Now, internationally renowned performance expert Brendan Gregg has brought together proven methodologies, tools, and metrics for analyzing and tuning even the most complex environments. Systems Performance: Enterprise and the Cloud focuses on Linux(R) and Unix(R) performance, while illuminating performance issues that are relevant to all operating systems. You'll gain deep insight into how systems work and perform, and learn methodologies for analyzing and improving system and application performance. Gregg presents examples from bare-metal systems and virtualized cloud tenants running Linux-based Ubuntu(R), Fedora(R), CentOS, and the illumos-based Joyent(R) SmartOS(TM) and OmniTI OmniOS(R). He systematically covers modern systems performance, including the "traditional" analysis of CPUs, memory, disks, and networks, and new areas including cloud computing and dynamic tracing. This book also helps you identify and fix the "unknown unknowns" of complex performance: bottlenecks that emerge from elements and interactions you were not aware of. The text concludes with a detailed case study, showing how a real cloud customer issue was analyzed from start to finish. Coverage includes - Modern performance analysis and tuning: terminology, concepts, models, methods, and techniques - Dynamic tracing techniques and tools, including examples of DTrace, SystemTap, and perf - Kernel internals: uncovering what the OS is doing - Using system observability tools, interfaces, and frameworks - Understanding and monitoring application performance - Optimizing CPUs: processors, cores, hardware threads, caches, interconnects, and kernel scheduling - Memory optimization: virtual memory, paging, swapping, memory architectures, busses, address spaces, and allocators - File system I/O, including caching - Storage devices/controllers, disk I/O workloads, RAID, and kernel I/O - Network-related performance issues: protocols, sockets, interfaces, and physical connections - Performance implications of OS and hardware-based virtualization, and new issues encountered with cloud computing - Benchmarking: getting accurate results and avoiding common mistakes This guide is indispensable for anyone who operates enterprise or cloud environments: system, network, database, and web admins; developers; and other professionals. For students and others new to optimization, it also provides exercises reflecting Gregg's extensive instructional experience.

Author: Gel Gepsy
Publisher: Webolicus
ISBN:
Category : Computers
Languages : en
Pages : 141

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Book Description
This book was first published in 2015. Since then, the Wi-Fi technology has evolved tremendously. This 2020 edition has important updates about security. Once hackers take control of your Wi-Fi router, they can attack connected devices such as phones, laptops, computers! Fortunately, it is easy to harden the defense of your home network. There are important steps you should take in order to protect your connected devices. An exhaustive catalog of the latest home security devices has been updated in this 2020 edition. Why would you spend a lot of money to have a home security system installed when you can do it yourself! A chapter about health risks has also been added. Are EMF radiations safe? We regularly post updates on our site http://mediastimulus.com such as security alerts and the latest in Wi-Fi technology. Your feedback is always welcome http://mediastimulus.com/contact/

Author: Brendan Gregg
Publisher: Addison-Wesley Professional
ISBN: 0136624588
Category : Computers
Languages : en
Pages : 2525

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Book Description
Use BPF Tools to Optimize Performance, Fix Problems, and See Inside Running Systems BPF-based performance tools give you unprecedented visibility into systems and applications, so you can optimize performance, troubleshoot code, strengthen security, and reduce costs. BPF Performance Tools: Linux System and Application Observability is the definitive guide to using these tools for observability. Pioneering BPF expert Brendan Gregg presents more than 150 ready-to-run analysis and debugging tools, expert guidance on applying them, and step-by-step tutorials on developing your own. You’ll learn how to analyze CPUs, memory, disks, file systems, networking, languages, applications, containers, hypervisors, security, and the kernel. Gregg guides you from basic to advanced tools, helping you generate deeper, more useful technical insights for improving virtually any Linux system or application. • Learn essential tracing concepts and both core BPF front-ends: BCC and bpftrace • Master 150+ powerful BPF tools, including dozens created just for this book, and available for download • Discover practical strategies, tips, and tricks for more effective analysis • Analyze compiled, JIT-compiled, and interpreted code in multiple languages: C, Java, bash shell, and more • Generate metrics, stack traces, and custom latency histograms • Use complementary tools when they offer quick, easy wins • Explore advanced tools built on BPF: PCP and Grafana for remote monitoring, eBPF Exporter, and kubectl-trace for tracing Kubernetes • Foreword by Alexei Starovoitov, creator of the new BPF BPF Performance Tools will be an indispensable resource for all administrators, developers, support staff, and other IT professionals working with any recent Linux distribution in any enterprise or cloud environment.

Author: Mikhailo Klymash
Publisher: Springer Nature
ISBN: 3030924351
Category : Technology & Engineering
Languages : en
Pages : 531

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Book Description
So-called Intent-Based Networking (IBN) is founded on well-known SDN (Software-Defined Networking) and represents one of the most important emerging network infrastructure opportunities. The IBN is the beginning of a new era in the history of networking, where the network itself translates business intentions into appropriate network configurations for all devices. This minimizes manual effort, provides an additional layer of network monitoring, and provides the ability to perform network analytics and take full advantage of machine learning. The centralized, software-defined solution provides process automation and proactive problem solving as well as centralized management of the network infrastructure. With software-based network management, many operations can be performed automatically using intelligent control algorithms (artificial intelligence and machine learning). As a result, network operation costs, application response times and energy consumption are reduced, network reliability and performance are improved, network security and flexibility are enhanced. This will be a benefit for existing networks as well as evolved LTE-based mobile networks, emerging Internet of Things (IoT), Cloud systems, and soon for the future 5G/6G networks. The future networks will reach a whole new level of self-awareness, self-configuration, self-optimization, self-recovery and self-protection. This volume consists of 28 chapters, based on recent research on IBN.The volume is a collection of the most important research for the future intent-based networking deployment provided by different groups of researchers from Ukraine, Germany, Slovak Republic, Switzerland, South Korea, China, Czech Republic, Poland, Brazil, Belarus and Israel. The authors of the chapters from this collection present in depth extended research results in their scientific fields.The presented contents are highly interesting while still being rather practically oriented and straightforward to understand. Herewith we would like to wish all our readers a lot of inspiration by studying of the volume!

Author: Aditya Pratap Bhuyan
Publisher: Aditya Pratap Bhuyan
ISBN:
Category : Computers
Languages : en
Pages : 96

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Book Description
"The Power and Future of Networks": A Book Exploring Connectivity and its Impact "The Power and Future of Networks" dives into the fascinating world of networks, exploring their history, impact, and the exciting possibilities they hold for the future. It delves beyond the technical aspects, examining how networks have revolutionized various sectors and shaped our social and economic landscape. The book unpacks the concept of the network effect, explaining how interconnectedness amplifies the value of networks as the number of users or devices grows. It showcases real-world examples of how networks have transformed communication, education, healthcare, and entertainment. Looking ahead, the book explores emerging network technologies like the Internet of Things (IoT), Artificial Intelligence (AI), and cloud computing. It discusses the challenges and opportunities associated with these advancements, emphasizing the need for responsible network management, robust security solutions, and a focus on user experience. The book doesn't shy away from the ethical considerations of a hyper-connected world. It explores issues like data privacy, algorithmic bias, and the potential for misuse of technology. It advocates for a collaborative and responsible approach to network development, ensuring ethical considerations, digital citizenship, and network neutrality are prioritized. "The Power and Future of Networks" is a comprehensive resource for anyone interested in understanding the power of networks and their impact on our lives. It provides a compelling narrative for both tech enthusiasts and those curious about the future of technology. This book serves as a springboard for further exploration, offering a rich bibliography and appendix brimming with practical resources, case studies, and hands-on activities to solidify your network knowledge. By understanding the power of networks, we can become active participants in shaping their future, ensuring they continue to connect, empower, and unlock a world of limitless possibilities.

Author: Kiran Ahuja
Publisher: Academic Press
ISBN: 0323905366
Category : Technology & Engineering
Languages : en
Pages : 338

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Book Description
Comprehensive Guide to Heterogeneous Networks discusses the fundamental motivations behind this cutting-edge development, along with a brief discussion on the diverse definitions of HNs. The future of heterogeneous wireless networks (HWNs) is covered, including test cases, cost configuration, economic benefits and basic challenges. Other sections cover the topology management method in context of heterogeneous sensor nodes with diverse communication and sensing range. In addition, an outline of the pros and cons of the clustering criteria in HWSNs and taxonomy are summarized and provide futuristic research directions. Final sections discuss the future evolution of HNs and their implementations in diverse applications. This is an essential reference book for advanced students on courses in wireless communications, clinical engineering and networking. It will also be of interest to researchers, network planners, technical mangers and other professionals in these fields. - Discusses the most important problems, challenges and issues which arise when designing real-time heterogeneous networks for diverse scenarios - Represents the unique features of heterogeneous sensor networks, giving the end-user a better understanding of the environment - Provides an overview of real-time performance issues in heterogeneous networks, specifically multi-tasking, multi-level scheduling, localization and security issues - Includes applications of heterogeneous networks in diverse fields and focuses on the convergence of heterogeneous wireless networks for 5G

Author: Joseph Migga Kizza
Publisher: Springer Nature
ISBN: 3030381412
Category : Computers
Languages : en
Pages : 599

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Book Description
This timely textbook presents a comprehensive guide to the core topics in cybersecurity, covering issues of security that extend beyond traditional computer networks to the ubiquitous mobile communications and online social networks that have become part of our daily lives. In the context of our growing dependence on an ever-changing digital ecosystem, this book stresses the importance of security awareness, whether in our homes, our businesses, or our public spaces. This fully updated new edition features new material on the security issues raised by blockchain technology, and its use in logistics, digital ledgers, payments systems, and digital contracts. Topics and features: Explores the full range of security risks and vulnerabilities in all connected digital systems Inspires debate over future developments and improvements necessary to enhance the security of personal, public, and private enterprise systems Raises thought-provoking questions regarding legislative, legal, social, technical, and ethical challenges, such as the tension between privacy and security Describes the fundamentals of traditional computer network security, and common threats to security Reviews the current landscape of tools, algorithms, and professional best practices in use to maintain security of digital systems Discusses the security issues introduced by the latest generation of network technologies, including mobile systems, cloud computing, and blockchain Presents exercises of varying levels of difficulty at the end of each chapter, and concludes with a diverse selection of practical projects Offers supplementary material for students and instructors at an associated website, including slides, additional projects, and syllabus suggestions This important textbook/reference is an invaluable resource for students of computer science, engineering, and information management, as well as for practitioners working in data- and information-intensive industries.

Author: Jason Gooley
Publisher: Cisco Press
ISBN: 0136533167
Category : Computers
Languages : en
Pages : 1034

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Book Description
This is the eBook edition of Cisco Software-Defined Wide-Area Networks. This eBook does not include access to the companion website with practice exam that comes with the print edition. Access to the video mentoring is available through product registration at Cisco Press; or see the instructions in the back pages of your eBook. This study guide from Cisco Press will help you learn, prepare, and practice for exam success. This guide is built with the objective of providing assessment, review, and practice to help ensure you are prepared for your certification exam. Master Cisco Implementing Cisco SD-WAN Solutions (ENSDWI 300-415) exam topics Assess your knowledge with chapter-opening quizzes Review key concepts with exam preparation tasks Cisco Software-Defined Wide-Area Networks presents you with an organized test preparation routine using proven series elements and techniques. Key Topic tables help you drill on key concepts you must know thoroughly. Chapter-ending Review Questions help you to review what you learned in the chapter. Cisco Software-Defined Wide-Area Networks focuses specifically on the objectives for the Implementing Cisco SD-WAN Solutions (ENSDWI 300-415) exam. Four leading Cisco technology experts share preparation hints and test-taking tips, helping you 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, this 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 Implementing Cisco SD-WAN Solutions (ENSDWI 300-415) exam, including: Architecture Controller Deployment Router Deployment Policies Security and Quality of Service Management and Operations Cisco Software-Defined Wide-Area Networks 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 http://www.cisco.com/web/learning/index.html

Author: Marek Chmel
Publisher: Packt Publishing Ltd
ISBN: 1789950333
Category : Computers
Languages : en
Pages : 522

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Book Description
Use Microsoft SQL Server 2019 to implement, administer, and secure a robust database solution that is disaster-proof and highly available Key FeaturesExplore new features of SQL Server 2019 to set up, administer, and maintain your database solution successfullyDevelop a dynamic SQL Server environment and streamline big data pipelinesDiscover best practices for fixing performance issues, database access management, replication, and securityBook Description SQL Server is one of the most popular relational database management systems developed by Microsoft. This second edition of the SQL Server Administrator's Guide will not only teach you how to administer an enterprise database, but also help you become proficient at managing and keeping the database available, secure, and stable. You’ll start by learning how to set up your SQL Server and configure new and existing environments for optimal use. The book then takes you through designing aspects and delves into performance tuning by showing you how to use indexes effectively. You’ll understand certain choices that need to be made about backups, implement security policy, and discover how to keep your environment healthy. Tools available for monitoring and managing a SQL Server database, including automating health reviews, performance checks, and much more, will also be discussed in detail. As you advance, the book covers essential topics such as migration, upgrading, and consolidation, along with the techniques that will help you when things go wrong. Once you’ve got to grips with integration with Azure and streamlining big data pipelines, you’ll learn best practices from industry experts for maintaining a highly reliable database solution. Whether you are an administrator or are looking to get started with database administration, this SQL Server book will help you develop the skills you need to successfully create, design, and deploy database solutions. What you will learnDiscover SQL Server 2019’s new features and how to implement themFix performance issues by optimizing queries and making use of indexesDesign and use an optimal database management strategyCombine SQL Server 2019 with Azure and manage your solution using various automation techniquesImplement efficient backup and recovery techniques in line with security policiesGet to grips with migrating, upgrading, and consolidating with SQL ServerSet up an AlwaysOn-enabled stable and fast SQL Server 2019 environmentUnderstand how to work with Big Data on SQL Server environmentsWho this book is for This book is for database administrators, database developers, and anyone who wants to administer large and multiple databases single-handedly using Microsoft's SQL Server 2019. Basic awareness of database concepts and experience with previous SQL Server versions is required.