From PHP to Ruby on Rails. Transition from PHP to Ruby by leveraging your existing backend programming knowledge

Bernard Pineda

Are you a PHP developer looking to take your first steps into the world of Ruby development? From PHP to Ruby on Rails will help you leverage your existing knowledge to gain expertise in Ruby on Rails. With a focus on bridging the gap between PHP and Ruby, this guide will help you develop the Ruby mindset, set up your local environment, grasp the syntax, master scripting, explore popular Ruby frameworks, and find out about libraries and gems.This book offers a unique take on Ruby from the perspective of a seasoned PHP developer who initially refused to learn other technologies, but never looked back after taking the leap. As such, it teaches with a language-agnostic approach that will help you feel at home in any programming language without learning everything from scratch. This approach will help you avoid common mistakes such as writing Ruby as if it were PHP and increase your understanding of the programming ecosystem as a whole.By the end of this book, you'll have gained a solid understanding of Ruby, its ecosystem, and how it compares to PHP, enabling you to build robust and scalable applications using Ruby on Rails.

Software Test Design. Write comprehensive test plans to uncover critical bugs in web, desktop, and mobile apps

Simon Amey

Software Test Design details best practices for testing software applications and writing comprehensive test plans. Written by an expert with over twenty years of experience in the high-tech industry, this guide will provide you with training and practical examples to improve your testing skills.Thorough testing requires a thorough understanding of the functionality under test, informed by exploratory testing and described by a detailed functional specification. This audiobook is divided into three sections, the first of which will describe how best to complete those tasks to start testing from a solid foundation.Armed with the feature specification, functional testing verifies the visible behavior of features by identifying equivalence partitions, boundary values, and other key test conditions. This section explores techniques such as black- and white-box testing, trying error cases, finding security weaknesses, improving the user experience, and how to maintain your product in the long term.The final section describes how best to test the limits of your application. How does it behave under failure conditions and can it recover? What is the maximum load it can sustain? And how does it respond when overloaded?By the end of this audiobook, you will know how to write detailed test plans to improve the quality of your software applications.

Getting Started with Docker and AI. Learn Docker from scratch to AI-powered container deployment with clear, practical steps - Third Edition

Nigel Poulton

This hands-on guide is designed to take you from zero to Docker-ready, combining clear explanations with practical examples. You’ll begin by exploring the fundamentals of containers, Docker architecture, and key concepts like images, registries, and the role of containers in microservices and AI. Early chapters lay a strong foundation, demystifying industry jargon and highlighting how containers differ from traditional virtual machines.Once the basics are in place, the book moves into real-world usage. You’ll install Docker, run your first containers, and learn how to manage them with Docker Desktop. You’ll then containerize a simple web app, push images to Docker Hub, and build multi-container microservices applications using Docker Compose. These hands-on labs build both confidence and competency through guided, project-based learning.This newly updated edition adds a dedicated chapter on AI integration using the new Docker Model Runner. You'll deploy local AI models, integrate with Open WebUI, and see how Docker now powers modern AI workflows. This book is ideal for anyone looking to master Docker while also gaining experience in deploying containerized AI solutions.

DevOps Unleashed with Git and GitHub. Automate, collaborate, and innovate to enhance your DevOps workflow and development experience

Yuki Hattori, Isabel Drost-Fromm

Git and GitHub are absolutely crucial for DevOps, playing a multifaceted role in streamlining the software development lifecycle and enabling smoother collaboration between development and operations teams.DevOps Unleashed with Git and GitHub enables you to harness the power of Git and GitHub to streamline workflows, drive collaboration, and fuel innovation. Authored by an expert from GitHub, the book starts by guiding you through Git fundamentals and delving into DevOps and the developer experience. As you progress, you’ll understand how to leverage GitHub's collaboration and automation features, and even use GitHub Copilot for enhanced productivity. You'll also learn how to bridge the DevOps gap, maintain code quality, and implement robust security measures. Additionally, hands-on exercises will equip you to elevate your developer experience, foster teamwork, and drive innovation at the speed of DevOps.By the end of this DevOps book, you’ll have mastered the Git fundamentals, conquered collaboration challenges, and unleashed the power of GitHub as you transform your DevOps workflows.

Hack the Cybersecurity Interview. Navigate Cybersecurity Interviews with Confidence, from Entry-level to Expert roles - Second Edition

Christophe Foulon, Ken Underhill, Tia Hopkins

The cybersecurity field is evolving fast, and so are its job interviews. Hack the Cybersecurity Interview, Second Edition is your go-to guide for landing your dream cybersecurity job—whether you're breaking in or aiming for a senior role.This expanded edition builds on reader feedback, refines career paths, and updates strategies for success. With a real-world approach, it preps you for key technical and behavioral questions, covering roles like Cybersecurity Engineer, SOC Analyst, and CISO. You'll learn best practices for answering with confidence and standing out in a competitive market.The book helps you showcase problem-solving skills, highlight transferable experience, and navigate personal branding, job offers, and interview stress. Using the HACK method, it provides a structured approach to adapt to different roles and employer expectations.Whether you're switching careers, advancing in cybersecurity, or preparing for your first role, this book equips you with the insights, strategies, and confidence to secure your ideal cybersecurity job.

Transforming Healthcare with DevOps. A practical DevOps4Care guide to embracing the complexity of digital transformation

Jeroen Mulder, Henry Mulder

Healthcare today faces a multitude of challenges, which can be summed up as the barriers architects and consultants face in transforming the healthcare system into a more sustainable one. This book helps you to guide that transformation step by step.You’ll begin by understanding the need for this transformation, exploring related challenges, the possibilities of technology, and how human factors can be involved in digital transformation. The book will enable you to overcome inhibitions and plan various transformation steps using the Transformation into Sustainable Healthcare (TiSH) model and DevOps4Care. Next, you’ll use the observe, orient, decide, and act (OODA) loop as an iterative approach to address all stakeholders and adapt swiftly when situations change. Further, you’ll be able to build shared platforms that enable interaction between various stakeholders, including the technology-enabled care service teams. The final chapters will help you execute the transformation to sustainable healthcare using the knowledge you’ve gained while getting familiar with common pitfalls and learning how to avoid or mitigate them.By the end of this DevOps book, you will have an overview of the challenges, opportunities, and directions of solutions and be on your way toward starting the transformation into sustainable healthcare.

CompTIA Data+: DAO-001 Certification Guide. Complete coverage of the new CompTIA Data+ (DAO-001) exam to help you pass on the first attempt

Cameron Dodd

The CompTIA Data+ certification exam not only helps validate a skill set required to enter one of the fastest-growing fields in the world, but also is starting to standardize the language and concepts within the field. However, there’s a lot of conflicting information and a lack of existing resources about the topics covered in this exam, and even professionals working in data analytics may need a study guide to help them pass on their first attempt.The CompTIA Data + (DAO-001) Certification Guide will give you a solid understanding of how to prepare, analyze, and report data for better insights.You’ll get an introduction to Data+ certification exam format to begin with, and then quickly dive into preparing data. You'll learn about collecting, cleaning, and processing data along with data wrangling and manipulation. As you progress, you’ll cover data analysis topics such as types of analysis, common techniques, hypothesis techniques, and statistical analysis, before tackling data reporting, common visualizations, and data governance. All the knowledge you've gained throughout the audiobook will be tested with the mock tests that appear in the final chapters.By the end of this audiobook, you’ll be ready to pass the Data+ exam with confidence and take the next step in your career.

Salesforce Data Architect Certification Guide. Comprehensive coverage of the Salesforce Data Architect exam content to help you pass on the first attempt

Aaron Allport

The Salesforce Data Architect is a prerequisite exam for the Application Architect half of the Salesforce Certified Technical Architect credential. This book offers complete, up-to-date coverage of the Salesforce Data Architect exam so you can take it with confidence.The book is written in a clear, succinct way with self-assessment and practice exam questions, covering all the topics necessary to help you pass the exam with ease. You’ll understand the theory around Salesforce data modeling, database design, master data management (MDM), Salesforce data management (SDM), and data governance. Additionally, performance considerations associated with large data volumes will be covered. You’ll also get to grips with data migration and understand the supporting theory needed to achieve Salesforce Data Architect certification.By the end of this Salesforce book, you'll have covered everything you need to know to pass the Salesforce Data Architect certification exam and have a handy, on-the-job desktop reference guide to re-visit the concepts.