Professional and Applied Computing (R0)

Here is a practical guide for analyzing and troubleshooting SQL Server performance using wait statistics. Learn to identify precisely why your queries are running slowly. Measure the amount of time consumed by each bottleneck so that you can focus attention on making the largest improvements first. This edition is updated to cover analysis of wait statistics inside Query Store, the CXCONSUMER wait event, and to be current with SQL Server 2019. Whether you are new to wait statistics, or already familiar with them, this book provides a deeper understanding on how wait statistics are generated and what they can mean for your SQL Server instance’s performance. 

Pro SQL Server 2019 Wait Statistics goes beyond the most common wait types into the more complex and performance-threatening wait types. You’ll learn about per-query wait statistics and session-based wait statistics, and the types of problems they each can help you solve. The different wait types are categorized by their area of impact, including CPU, IO, Lock, and many more.

The book presents clear examples to help you gain practical knowledge of why and how specific wait times increase or decrease, and how they impact your SQL Server’s performance. After reading this book you won’t want to be without the valuable information that wait statistics provide regarding where you should be spending your limited tuning time to maximize performance and value to your business. 

What You'll Learn

• Identify resource bottlenecks in a running SQL Server instance
  
• Locate wait statistics information inside DMVs and Query Store
  
• Analyze the root cause of sub-optimal performance
  
• Diagnose I/O contention and locking contention
  
• Benchmark SQL Server performance
  
• Lower the wait time of the most popular wait types
  

Who This Book Is For

Database administrators who want to identify and resolve performance bottlenecks, those who want to learn more about how the SQL Server engine accesses and uses resources inside SQL Server, and administrators concerned with achieving—and knowing they have achieved—optimal performance

• Acquire and investigate data from mobile devices using forensically sound, industry-standard tools
  
• Understand the relationship between mobile and desktop devices in criminal and corporate investigations
  
• Analyze backup files and artifacts for forensic evidence

Your framework will be built with Spring-Boot, Gradle, and Junit. And it will support HP QC integration, Allure (TDD, BDD), Extent (BDD), and customized Pdf reporting (TDD, BDD). Extensive utilities are provided, such as HP ALM integration, device management utilities, email reporting, pdf reporting, OCR utility, Log utility, and more! There’s also a special chapter on internationalization/localization testing in multiple languages. After reading this book, you’ll have full confidence in your ability to build new test automation frameworks for yourself. 

What You'll Learn

• Design an enterprise level mobile test automation framework capable of supporting both TDD and BDD 
  
• Work with the latest open source tools and coding best practices 
  
• Build with Spring-Boot, Gradle, and Junit while supporting HP QC integration, Allure, Extent, and customized PDF reporting

Who This Book Is For

Software professionals working in test automation. Recent engineering graduates who have programming knowledge and want to prepare for a role in mobile test automation should also find it helpful.

• Optimize your resume for applications
• Standard tips for interviewing in software engineer positions
• Become a mentor and leader at your job

Examine the working details for real-world Java programs used for system integration with IBM Software, applying various API libraries (as used by Banking and Insurance companies). This book includes the step-by-step procedure to use the IBM FileNet Case Manager 5.3.3 Case Builder solution and the similar IBM System, IBM Business Automation Workflow to create an Audit System. 

You'll learn how to implement the workflow with a client Java Message Service (JMS) java method developed with Workflow Custom Operations System Step components. Using IBM Cognos Analytics Version 11.2, you'll be able to create new views for IBM Case Manager Analytics for custom time dimensions. The book also explains the SQL code and procedures required to create example Online Analytical Processing (OLAP) cubes with multi-level time dimensions for IBM Case Manager analytics.

IBM Software Systems Integration features the most up to date systems software procedures using tested API calls.

What You Will Learn

• Review techniques for generating custom IBM JMS code
• Create a new custom view for a multi-level time dimension
  
• See how a java program can provide the IBM FileNet document management API calls for content store folder and document replication
• Configure Java components for content engine events
  

Who This Book Is For

The book is a comprehensive end-to-end guide on creating, building, and distributing .NET MAUI applications. As you walk through each new concept, .NET MAUI expert and Microsoft MVP Shaun Lawrence will show the concept's value and uses, and then have you apply it in a build-along application. You will work with this build-along application right up until you are ready to ship it to the relevant stores (e.g., App Store, etc.).

The underlying theme through the book is to explain a key concept, show how to implement it directly in order to reinforce your understanding, and then show potential simplifications (e.g., alternative libraries) that can help you reduce the complexities of an applications code base.

• Create a .NET MAUI application
• Apply commonly required techniques
• Apply more advanced techniques to make applications stand out
• Know what to consider when distributing applications to the relevant stores
• Take an application from concept through to production

Who This Book Is For

Developers who are new to .NET MAUI and cross-platform development. A basic knowledge of C# is required, but no prior knowledge using .NET MAUI is required. Experienced developers also will find the book useful as it covers topics key to modern day development (such as accessibility, performance, and distribution). Xamarin Forms developers will find the book useful as key features new to .NET MAUI that will aid in the migration from Xamarin Forms to .NET MAUI are explained.

Learn how to use the Processing programming language and environment to create Android applications with ease. This book covers the basics of the Processing language, allowing users to effectively program interactive graphics in 2D, 3D, and Extended Reality (XR). It also details the application of these techniques to different types of Android devices (smartphones, tablets, wearables, and smartwatches). 

This updated edition walks you through the entire process of creating an app, from the initial idea to release of the final app via the Google Play App Store. Over the course of the book, you’ll learn to write engaging apps driven by user interaction and sensor data. A comprehensive series of hands-on projects, ranging from simple sketches to more complex projects involving shaders, VR, and AR will give you the firsthand experience you need to begin developing your own projects.

And once you have your Processing projects completed, you’ll be able to upload them to the Google Play store to be shared with the world!

What You Will Learn

• Write apps and live wallpapers for smartphones and tablets
• Design and implement interactive watch faces
• Create Extended Reality (VR/AR) experiences
• Incorporate GLSL shaders into your Processing apps
• Integrate Processing sketches into larger apps and Android Studio
• Learn how to write your own libraries to share with the community
• Export projects as completed apps ready to distribute through Google Play Store

Who This Book Is For

This book is an essential guide designed to equip you with the vital tools and knowledge needed to excel in data science. Master the end-to-end process of data collection, processing, validation, and imputation using R, and understand fundamental theories to achieve transparency with literate programming, renv, and Git--and much more. Each chapter is concise and focused, rendering complex topics accessible and easy to understand.

Data Insight Foundations caters to a diverse audience, including web developers, mathematicians, data analysts, and economists, and its flexible structure allows enables you to explore chapters in sequence or navigate directly to the topics most relevant to you.

While examples are primarily in R, a basic understanding of the language is advantageous but not essential. Many chapters, especially those focusing on theory, require no programming knowledge at all. Dive in and discover how to manipulate data, ensure reproducibility, conduct thorough literature reviews, collect data effectively, and present your findings with clarity.

What You Will Learn

• Data Management: Master the end-to-end process of data collection, processing, validation, and imputation using R.
• Reproducible Research: Understand fundamental theories and achieve transparency with literate programming, renv, and Git.
• Academic Writing: Conduct scientific literature reviews and write structured papers and reports with Quarto.
• Survey Design: Design well-structured surveys and manage data collection effectively.
• Data Visualization: Understand data visualization theory and create well-designed and captivating graphics using ggplot2.

Who this Book is For

Career professionals such as research and data analysts transitioning from academia to a professional setting where production quality significantly impacts career progression. Some familiarity with data analytics processes and an interest in learning R or Python are ideal. 

Embedded computers have become very complex and are now called upon to solve a range of increasingly advanced problems. This added complexity means embedded systems need even more complex operating systems in order to work as required.

The Yocto Project is now the effective standard for most embedded systems around the world due to its robustness and high configuration, availability of software packages and the ability to support several hardware platforms with common mechanisms so that developers can deploy their systems with ease regardless of the machine.

 Yocto Project Customization for Linux is not just another book talking about the Yocto Project, but shows how the Yocto Build system really works. Developers can easily and quickly move from the demo Yocto Project distributions that silicon vendors rely on for their development kits to their final product. This book is a practical guide teaching you everything you need to know about writing new recipes and customizing existing ones by explaining the Build System internals and how to manage them for your ongoing projects.

You Will Learn:

• To understand Yocto Project internals and how Yocto Project tools work
• How to define a new meta layer or a new machine/distro in order to generate a custom Yocto Project image for their embedded system
• To generate a new Yocto Project recipe for your software, or to alter an already existing recipe in order to fit your needs
• How to update one or more packages on their running Yocto Project system
• How to optimize and effectively manage the Yocto Build System

Who is it for: 

This is for embedded developers as well as Linux users who want to know more how to use Yocto

This book is a comprehensive guide designed to introduce newcomers to Go (Golang). It covers the essential topics that you would need to build a solid foundation in Golang, including basic syntax, data types, control structures, functions, and packages. Along with the basics of the language, you will also learn how to set up a development environment, integrate Visual Studio Code, and use Git and GitHub for version control.

Learn the language through practical, hands-on interactive exercises using Go Playground and real-world projects. In the book you can work through detailed, step-by-step instructions from environment setup to project deployment, and easily follow along without prior experience. Each chapter builds progressively, guiding you from writing simple programs to developing a useful CLI tool and a basic web service. By treating each example as a GitHub project, the book ensures you gain experience in project management and collaborative development.

Topics such as error handling, testing, and concurrency are covered in depth, providing you with the skills needed to write efficient and reliable Go code. The appendix includes valuable resources like quick reference guides and best practices for Go programming. 

This book is an indispensable resource for you in Go due to its highly practical, hands-on approach with detailed, step-by-step instructions, comprehensive integration with modern development tools, and real-world project examples.

 What You'll Learn:

• Basic Go Programming Concepts like variables, data types, control structures, functions, and packages
• Setting up a Go development environment and configuring Visual Studio Code for Go projects
• Building, deploying, and maintaining a useful Command-Line Interface (CLI) tool in Go
• Applying Go programming concepts through hands-on projects and real-world examples

Who this book is for:

Software architects and engineers, students, hobbyists, educators and trainers

Supercomputers and High Performance Computing (HPC) clusters are not so exotic as people imagine these days. They give companies the power of computation like no one server can give alone.  They make new drugs and materials discoveries, universe modeling and AI training, crash simulations and market research possible – all thanks to HPC clusters. Building or renting a HPC cluster is not so difficult either as cloud providers can give you resources to build one cheap and performative enough to use yourself, so If you are or want to become HPC cluster Sysadmin or manager, this book is for you.

Supercomputers for Linux SysAdmins delves into the world of modern HPC cluster architecture, hardware, software and resources management using a Linux/UNIX based approach. The number of HPC clusters is growing with an estimated 30 billion by 2030 but there are not enough sysadmins to run and manage them, this book serves to bridge this gap to help more Sysadmins and managers to transition into the exiting world of HPCs. 

This book helps those with a strong foundational knowledge in Linux, to deal with supercomputers and HPC clusters. We start with the basic principles of supercomputer management, fundamentals of Linux and UNIX, Shell Scripting and systemd and well as other open source tools and frameworks, taking you thorough the security, monitoring and hardware requirements for supercomputers and HPC clusters.

You Will Learn:

• How to plan new supercomputers
• The main principles and technologies used in supercomputers and HPC clusters
• How to set up the software environments on new supercomputers 
• To set up supercomputer and HPC cluster resources and jobs management
• To manage accounts, resource sharing and many more.

Who is it for: 

The main audience of this book are regular UNIX/Linux sysadmins and managers, who should deal with HPC clusters on-prem or in cloud and those who are interested in supercomputers and HPC clusters and how to utilize them in their projects and teams.

In the ever-evolving world of cybersecurity, the need for robust and proactive threat intelligence has never been more critical. This book is designed to arm you with the essential knowledge and tools required to establish a world-class cyber threat intelligence (CTI) capability. Authored by Crawford Thomas, a seasoned expert with over two decades of frontline experience in military intelligence and cyber threat intelligence within the financial sector, this guide is not just theoretical—it's a distillation of hard-earned, practical wisdom.

This book is not a typical consultation manual filled with checkboxes and generic advice. Instead, it draws from the real-world experiences of a practitioner who has navigated the complexities of regulatory pressures and excelled in environments that demand nothing less than excellence. Notably, during a recent CBEST testing, Thomas’s leadership and the performance of his CTI team were described as "formidable." This recognition underscores the level of expertise and effectiveness you can expect to learn from.

You are invited on a comprehensive journey through the critical stages of building a CTI function: from developing a strategic vision, formulating prioritized intelligence requirements, and selecting the right vendors, to mastering the nuances of intelligence reporting. This book is designed to guide you in creating a CTI capability that not only protects your business, but also enhances its efficacy and fosters an environment of reliability and trust—both internally and externally.

The necessity for this book stems from the current cybersecurity landscape where businesses face an increasing barrage of threats. They require impeccable IT security across all platforms, often taking on risks that stretch beyond their risk appetite. Email systems, provided ubiquitously by major vendors, remain a prime target despite advanced security measures. Meanwhile, the rise of Ransomware as a Service has given a new edge to this already formidable threat, turning organizations into unwitting participants in attacks aimed at third-party applications.

What You Will Learn:

• How to build a world leading cyber threat intelligence capability that is threat vector focused.
• Estimate the size of the cyber threat intelligence team you require,
• How to build the prioritized intelligence requirements (PIRs) and collection plan.
• How to select the correct cyber security vendor—in line with the PIRs.
• How to develop ‘pull intelligence’ production and reporting writing.

Who This Book is for:

This book is for all levels of cyber analyst capability. From the beginner, with a hunger to find a definitive answer to ‘what is a cyber threat intelligence capability’? To the expert, who is keen to learn of a better way to do their tradecraft. this book is also for the frustrated and burnt out in-house cyber specialist, who has grown cautious of the vendor market, the costs, the lack of integrations. The 10 year cyber expert who is aware of the changing threat landscape and the need to be more dynamic, responsive and efficient.

Written from the perspective of an experienced IT expert, this book leverages a maturity model framework to guide organizations through each stage of adopting, securing, scaling, and tracking the value of low-code AI responsibly and efficiently. Unlike other works that focus only on AI’s technical aspects, this book boasts a practical roadmap for responsible AI adoption and provides a clear, structured maturity model that guides organizations from foundational steps to advanced, responsible AI practices.

In a world where organizations are under pressure to innovate quickly and responsibly, this book provides a structured approach, addressing essential elements such as data management, governance, ethics and compliance in low-code AI environments. Each chapter represents a maturity level, from foundational to optimized, offering readers insights, practical steps and examples to support their journey.

The Low-Code AI Maturity Model takes a comprehensive look into the transformative potential of low-code and AI.

What You Will Learn

• Identify, assess and mitigate risks to ensure stable and reliable AI deployments
• Implement robust governance, aligning with compliance standards and ethical principles at each maturity stage
• Evaluate the real business value and ROI of AI projects, empowering data-driven decision-making

Who This Book Is For

IT leaders, decision-makers, and technology enthusiasts interested in the transformative potential of low-code and AI