Название: Data Modeling with Microsoft Power BI: Self-Service and Enterprise Data Warehouse with Power BI (Final Release)
Автор: Markus Ehrenmueller-Jensen
Издательство: O’Reilly Media, Inc.
Год: 2024
Страниц: 526
Язык: английский
Формат: epub
Размер: 11.9 MB

Data modeling is the single most overlooked feature in Power BI Desktop, yet it's what sets Power BI apart from other tools on the market. This practical book serves as your fast-forward button for data modeling with Power BI, Analysis Services tabular, and SQL databases. It serves as a starting point for data modeling, as well as a handy refresher. Author Markus Ehrenmueller-Jensen, founder of Savory Data, shows you the basic concepts of Power BI's semantic model with hands-on examples in DAX, Power Query, and T-SQL. If you're looking to build a data warehouse layer, chapters with T-SQL examples will get you started. You'll begin with simple steps and gradually solve more complex problems. This book is your companion on your journey to gain a comprehensive understanding about the steps needed to make building reports in Power BI Desktop and Power BI Report Builder, and creating measures in DAX, easier. Power BI supports a wide variety of data sources (covering databases from different vendors, like Microsoft, Oracle or Teradata; flat files, like CSV, text, or Excel; web services like an https link to a web page, etc.). The only way to get data into Power BI is through Power Query. It’s best practice to add calculations as (explicit) measures in DAX (as opposed to calculated columns in DAX or as columns in Power Query or in the data source). Creating calculated tables in DAX should be an exception; depending on your skills and preferences, you will implement transformations to shape the data model either in Power Query (in the user interface or by writing code in the M language) or in the data source.

Название: Архитектурное моделирование автоматизированных систем. Учебник. 2-е изд.
Автор: Соснин П.И.
Издательство: Лань
Год: 2024
Страниц: 179
Язык: русский
Формат: pdf
Размер: 11.5 MB

Учебник предназначен для студентов и аспирантов, обучающихся по направлению «Информатика и вычислительная техника». Может быть также использован студентами других специальностей, профиль которых связан с разработками автоматизированных систем, интенсивно использующих программное обеспечение. Учебный материал книги распределён по четырём главам. В первой главе определяется класс «автоматизированных систем, интенсивно использующих программное обеспечение», с акцентом на специфику архитектуры таких систем. Приводится ряд определений архитектуры с учётом её значимости, раскрываются место и роль архитектуры как формы концептуального существования АС. Представляется ретроспектива исследований и разработок в области архитектуры АС за последние 15 лет. Во второй главе внимание акцентируется на архитектурных образцах, стандартах и архитектурных концептуальных схемах. Раскрывается представление архитектуры АС в форме системы архитектурных видов, согласованных с интересами групп лиц, заинтересованных в разработке АС. Обобщённо демонстрируются архитектурные схемы Дж. Захмана, DoDAF, MoDAF, TOGAF и FEAF. Проводится сопоставление рабочих архитектурных схем, используемых в технологиях разработки АС различными корпорациями. Материал третьей главы связан с вопросами разработки архитектур АС. С позиций разработки предлагается рассматривать архитектуру как специфический вид автоматизированных систем, интенсивно использующих программное обеспечение. Представляются базовые архитектурные парадигмы (объектно-ориентированная, компонентно-ориентированная и сервисно-ориентированная парадигмы), варианты архитектур (в том числе с ориентацией на события, модели и паттерны) и архитектурные стили. Особое внимание уделяется вопросам качества АС, языкам описания архитектур и методам их проектирования, а также вопросам оценки и документирования результатов архитектурного моделирования. Обобщённо представляются идеи аспектно-ориентированного анализа и проектирования АС. Каждая из глав заканчивается списком контрольных вопросов, на каждый из которых приведён ряд потенциальных ответов.

Название: The IT Support Handbook: A How-To Guide to Providing Effective Help and Support to IT Users, 2nd Edition
Автор: Mike Halsey
Издательство: Apress
Год: 2024
Страниц: 248
Язык: английский
Формат: pdf, epub
Размер: 17.5 MB

Become a more effective tech professional by learning how to provide the most useful IT support for your users. You'll learn how to efficiently and effectively deal with any type of problem, including operating systems, software, and hardware. IT support is often complex, time-consuming, and expensive, but it doesn't have to be with the right processes in place. Whether you're an individual, part of an IT support team, or managing staff supporting PC users in their homes, this book will help you understand the right way to approach, troubleshoot, and isolate problems so they can be handled efficiently, with the least disruption and cost to your business. Expanded and revised for this second edition, you'll make yourself popular with your colleagues, and keep your clients and users happy and productive. For IT professionals, IT support (on-site and remote), and system administrators who manage support teams. No prior knowledge is required.

Название: Microsoft 365 Administration Inside Out, 3rd Edition
Автор: Aaron Guilmette, Darryl Kegg, Ed Fisher
Издательство: Microsoft Press/Pearson Education
Год: 2023
Страниц: 993
Язык: английский
Формат: pdf (true), epub (true)
Размер: 27.8 MB, 54.1 MB

Conquer Microsoft 365 administration, from the inside out! Dive into Microsoft 365 administration and harness the full power of cloud scaling, automation, and availability in Microsoft 365! This supremely well-organized reference packs hundreds of time-saving solutions, tips, and workarounds; all you need to continually enhance organizational agility, productivity, and security. Three Microsoft insiders help you fully leverage Microsoft Purview, Microsoft Enterprise Mobility + Security (EMS), Azure AD, Exchange Online, Microsoft Teams, SharePoint Online, OneDrive for Business, and more. Discover how experts tackle today’s key tasks and challenge yourself to new levels of mastery. Microsoft 365 is a new suite encompassing the previous Office 365 suite (Exchange Online, SharePoint Online, Office apps, and Skype for Business or Microsoft Teams), the Enterprise Mobility + Security Suite, and Windows 10 or Windows 11. This book covers the expanded suite offering instead of just the core productivity apps.

Название: Защита в операционных системах
Автор: Проскурин В.Г.
Издательство: Горячая линия-Телеком
Год: 2014
Страниц: 192
Формат: PDF
Размер: 11.8 Мб
Язык: русский

Подробно рассмотрены основные средства и методы обеспечения информационной безопасности в современных операционных системах: управление доступом, аутентификация, аудит и обнаружение вторжений. Кроме того, отдельно рассматриваются некоторые специфические вопросы, косвенно связанные с обеспечением безопасности операционных систем: централизованное управление политиками безопасности в доменах Windows, особенности обеспечения безопасности операционных систем мобильных устройств, концепция виртуализации операционных систем и ее влияние на информационную безопасность.

Название: Linux Essentials
Автор: Eric Frick
Издательство: Independently published
Год: 2024
Страниц: 210
Язык: английский
Формат: epub
Размер: 13.4 MB

Unlock the Power of Linux: Master the Essentials and Propel Your IT Career. Dive into the world of Linux with "Linux Essentials," a comprehensive guide designed for beginners and intermediate users alike. Whether you're switching from another operating system or deepening your IT skills, this book provides a solid foundation in the Linux operating system, its philosophy, and the vibrant open-source ecosystem. "Linux Essentials" covers everything from the basics of installation to advanced system administration techniques. Starting with an insightful introduction to Linux's history and the significance of the open-source movement, the book explores a wide array of topics including the Linux filesystem, command-line tools, package management, shell scripting, network fundamentals, and security basics. What You'll Learn: - Navigate the Linux filesystem with confidence; - Manage files and directories using essential command-line tools; - Perform basic system administration tasks such as managing users and groups, setting permissions, and configuring services; - Automate tasks with shell scripting and schedule jobs with cron; - Set up a web server using nginx and secure SSH access for remote management; - Master package management to install, update, and remove software; - Monitor system performance and manage system logs; - Deploy a Linux instance in the cloud using AWS. Whether you're aiming to start a career in IT, seeking to switch to a Linux-based working environment, or looking to expand your existing IT skills, "Linux Essentials" offers the knowledge and tools you need to succeed.

Название: Windows 10 для IT-специалистов
Автор(ы): Ботт Э.
Издательство: М.: Эком Паблишерз
Год: 2016
Страниц: 173 с.; ил.
Формат: DJVU
Размер: 18.4 Мб
Язык: русский

Данное руководство познакомит вас с новыми функциями и возможностями Windows 10. Автор — заслуженный эксперт по операционной системе Windows Эд Ботт (Ed Bott) — составил общий обзор Windows 10 для IT-профессионалов, готовых начать процесс развертывания, с множеством практических советов для эффективной работы. Книга начинается с обзора операционной системы, затем описывается множество изменений в работе пользователей. Там, где это необходимо, детально рассматриваются предлагаемые инструменты развертывания и управления.

Название: Modern Data Analytics in Excel: Using Power Query, Power Pivot, and More for Enhanced Data Analytics
Автор: George Mount
Издательство: O’Reilly Media, Inc.
Год: 2024
Страниц: 244
Язык: английский
Формат: pdf (true), epub (true)
Размер: 19.3 MB, 15.9 MB

If you haven't modernized your data cleaning and reporting processes in Microsoft Excel, you're missing out on big productivity gains. And if you're looking to conduct rigorous data analysis, more can be done in Excel than you think. This practical book serves as an introduction to the modern Excel suite of features along with other powerful tools for analytics. George Mount of Stringfest Analytics shows business analysts, data analysts, and business intelligence specialists how to make bigger gains right from your spreadsheets by using Excel's latest features. You'll learn how to build repeatable data cleaning workflows with Power Query, and design relational data models straight from your workbook with Power Pivot. You'll also explore other exciting new features for analytics, such as dynamic array functions, AI-powered insights, and Python integration. Learn how to build reports and analyses that were previously difficult or impossible to do in Excel.

Название: CompTIA Linux+ Certification Companion: Hands-on Preparation to Master Linux Administration
Автор: Ahmed F. Sheikh
Издательство: Apress
Год: 2024
Страниц: 315
Язык: английский
Формат: pdf, epub
Размер: 10.1 MB

"The CompTIA Linux+ Certification" book – the ultimate guide to mastering Linux system administration in preparation for the CompTIA Linux+ Certification. Whether you're a beginner or an experienced professional, this comprehensive resource is designed to equip you with the knowledge and skills needed to excel in the world of Linux. With its comprehensive coverage, this book delves into essential Linux concepts, commands, and techniques, providing you with a complete reference guide. You'll review how to customize and navigate the shell environment, write powerful scripts, configure user interfaces, perform administrative tasks, configure system services, establish network connections, and secure your system. No stone is left unturned in this in-depth exploration of Linux administration. What sets this book apart is its practical approach. Real-world scenarios and practical applications take center stage, ensuring that you not only understand the theory but also know how to apply it effectively. Troubleshooting common issues becomes second nature as you gain the skills to diagnose and resolve system problems with ease. Scripts can be a great tool for sysadmins! Many routine tasks can be completed quickly and more efficiently using scripts. A Bash script is nothing more than a collection of commands listed in the order you would do them if you executed them one at the time. Some scripts are complex as they perform multiple commands using multithreading. This book serves as an excellent resource for individuals who are new to Linux administration and wish to develop a strong foundation in this field. They may have basic knowledge of Linux concepts or come from related IT roles and seek to expand their skills to include Linux system management. Professionals already working in the IT industry, such as system administrators or network engineers, who want to enhance their skill set and broaden their knowledge by incorporating Linux administration into their repertoire. They may have experience with other operating systems and are seeking to acquire Linux-specific skills.

Название: Linux Basics for SysAdmin: Learn core Linux concepts and command-line skills to kickstart your system administration career
Автор: Ryan Juan
Издательство: GitforGits
Год: 2024
Страниц: 455
Язык: английский
Формат: pdf, azw3, epub, mobi
Размер: 10.1 MB

For students, aspiring IT specialists, and working professionals, "Linux Basics for SysAdmin" is a great starting point for learning the fundamentals of Linux, including the command line and all the tools and commands needed to manage enterprise systems. At first, you are introduced to the Linux environment, with a focus on browsing the filesystem, using basic commands, managing files and directories, and becoming acquainted with the shell. You'll also learn about package management and how to handle system startup and shutdown efficiently. After that, you'll learn all about system configuration files, 'systemd' for managing system services, crontab for job scheduling, and 'at' and 'batch' for automating processes. You will also learn about system performance monitoring, log files, backup and restore procedures, disk partitioning, and remote management via SSH. Afterwards, the book delves into topics such as dependency management, system hardware configuration, kernel upgrades, and device driver management, as well as package management with 'apt' and 'yum'. You'll also learn how to create and manage repositories, and install and setup virtual machines with VirtualBox. In the end, the book covers a wide range of topics, including creating and managing user accounts, editing user profiles, setting ownership and permissions for files, using ACLs, managing user sessions, configuring sudo for administrative tasks, implementing password policies, working with PAM, and managing group memberships. An understanding of the basics of Linux system administration will be yours by the time you finish this book.