Tech Recs

Getting started with a programming language can be tricky, knowing where to start and what to use and how to actually begin coding. This is where The Python Manual comes in.Regardless of whether you?re a student, computer enthusiast or just curious as to how programming works, our tutorials will help you discover how Python works and how it can be used to interact with you and other users. What?s more, you?ll learn how to think like a computer programmer. 100% Unofficial.

The definitive study guide for the new CCNA and CCNP certifications CCNA Certification Practice Test: Exam 200-301 is the definitive practice guide for professionals preparing for the new CCNA or CCNP certifications, and for those looking to master the latest technologies in Cisco networking fundamentals. The practice exams, written by 17-year industry professional Jon Buhagiar, explore a broad range of exam objectives essential for passing the certification exam. The CCNA exam provides the certification needed to grow your IT career. Each practice exam in this book is designed to prepare you to pass the CCNA by imparting the skills, knowledge, and practical coursework needed to master all exam topics. This book includes access to six practice tests featuring 1,200 exam questions, as well as two full practice exams. Most importantly, the six practice tests featured in Certification Practice Tests Exam 200-301 cover a variety of topics, including: Security fundamentals Automation and programmability IP services IP connectivity Network success Network fundamentals In addition to a plethora of exam topics and plenty of sample questions to prepare you for the CCNA exam, readers will also have access to online test tools featuring additional practice questions and study tools to assist in reinforcing the knowledge you’ve gained with the book. Learn the foundational knowledge you need to pass the CCNA or CCNP and take your career to the next level by preparing with CCNA Certification Practice Tests .

Develop proficiency in AWS technologies and validate your skills by becoming an AWS Certified Cloud Practitioner Key Features Develop the skills to design highly available and fault-tolerant solutions in the cloud Learn how to adopt best-practice security measures in your cloud applications Achieve credibility through industry-recognized AWS Cloud Practitioner certification Book Description Amazon Web Services is the largest cloud computing service provider in the world. Its foundational certification, AWS Certified Cloud Practitioner (CLF-C01), is the first step to fast-tracking your career in cloud computing. This certification will add value even to those in non-IT roles, including professionals from sales, legal, and finance who may be working with cloud computing or AWS projects. If you are a seasoned IT professional, this certification will make it easier for you to prepare for more technical certifications to progress up the AWS ladder and improve your career prospects. The book is divided into four parts. The first part focuses on the fundamentals of cloud computing and the AWS global infrastructure. The second part examines key AWS technology services, including compute, network, storage, and database services. The third part covers AWS security, the shared responsibility model, and several security tools. In the final part, you'll study the fundamentals of cloud economics and AWS pricing models and billing practices. Complete with exercises that highlight best practices for designing solutions, detailed use cases for each of the AWS services, quizzes, and two complete practice tests, this CLF-C01 exam study guide will help you gain the knowledge and hands-on experience necessary to ace the AWS Certified Cloud Practitioner exam. What you will learn Create an AWS account to access AWS cloud services in a secure and isolated environment Understand identity and access management (IAM), encryption, and multifactor authentication (MFA) protection Configure multifactor authentication for your IAM accounts Configure AWS services such as EC2, ECS, Lambda, VPCs, and Route53 Explore various storage and database services such as S3, EBS, and Amazon RDS Study the fundamentals of modern application design to shift from a monolithic to microservices architecture Design highly available solutions with decoupling ingrained in your design architecture Who this book is for If you're looking to advance your career and gain expertise in cloud computing, with particular focus on the AWS platform, this book is for you. This guide will help you ace the AWS Certified Cloud Practitioner Certification exam, enabling you to embark on a rewarding career in cloud computing. No previous IT experience is essential to get started with this book, since it covers core IT fundamentals from the ground up.

This new All-in-One Exam Guide covers every topic on the current version of Cisco's CCT and CCNA exams Take the 2020 versions of the Cisco Certified Technician (CCT) and Cisco Certified Network Associate (CCNA) exams with complete confidence using the detailed information contained in this highly effective self-study system. Written by a pair of Cisco networking professionals and training experts, CCT®/CCNA® Routing and Switching All-in-One Exam Guide (Exams 100-490 & 200-301) fully explains all subjects covered on both exams and contains practice questions that mirror those on the live test in tone, format, and content. Beyond fully preparing you for the challenging exam, the book also serves as a valuable on-the-job reference. Covers all topics on both exams, including: Network fundamentals OSI model TCP/IP protocol suite Subnetting and VLSM Cisco device and IOS basics Cisco device management Switching Static and dynamic routing IP services and IPv6 Wireless Security fundamentals Implementing security on Cisco devices Automation and programmability

Analyze data like a pro, even if you?re a beginner. Practical SQL is an approachable and fast-paced guide to SQL (Structured Query Language), the standard programming language for defining, organizing, and exploring data in relational databases. Anthony DeBarros, a journalist and data analyst, focuses on using SQL to find the story within your data. The examples and code use the open-source database PostgreSQL and its companion pgAdmin interface, and the concepts you learn will apply to most database management systems, including MySQL, Oracle, SQLite, and others.* You?ll first cover the fundamentals of databases and the SQL language, then build skills by analyzing data from real-world datasets such as US Census demographics, New York City taxi rides, and earthquakes from US Geological Survey. Each chapter includes exercises and examples that teach even those who have never programmed before all the tools necessary to build powerful databases and access information quickly and efficiently. You?ll learn how to: Create databases and related tables using your own data Aggregate, sort, and filter data to find patterns Use functions for basic math and advanced statistical operations Identify errors in data and clean them up Analyze spatial data with a geographic information system (PostGIS) Create advanced queries and automate tasks This updated second edition has been thoroughly revised to reflect the latest in SQL features, including additional advanced query techniques for wrangling data. This edition also has two new chapters: an expanded set of instructions on for setting up your system plus a chapter on using PostgreSQL with the popular JSON data interchange format.? Learning SQL doesn?t have to be dry and complicated. Practical SQL delivers clear examples with an easy-to-follow approach to teach you the tools you need to build and manage your own databases. * Microsoft SQL Server employs a variant of the language called T-SQL, which is not covered by Practical SQL .

100% coverage of every objective for the EC-Council's Certified Chief Information Security Officer exam Take the challenging CCISO exam with confidence using the comprehensive information contained in this effective study guide. CCISO Certified Chief Information Security Officer All-in-One Exam Guide provides 100% coverage of all five CCISO domains. Each domain is presented with information mapped to the 2019 CCISO Blueprint containing the exam objectives as defined by the CCISO governing body, the EC-Council. For each domain, the information presented includes: background information; technical information explaining the core concepts; peripheral information intended to support a broader understating of the domain; stories, discussions, anecdotes, and examples providing real-world context to the information. Online content includes 300 practice questions in the customizable Total Tester exam engine Covers all exam objectives in the 2019 EC-Council CCISO Blueprint Written by information security experts and experienced CISOs

CISSP Study Guide - fully updated for the 2021 CISSP?Body of Knowledge? (ISC)2?Certified Information Systems Security Professional?(CISSP)?Official Study Guide,?9th?Edition has been completely updated?based on?the latest?2021?CISSP?Exam Outline. This bestselling?Sybex?Study?Guide covers 100% of?the?exam objectives.?You'll?prepare for the exam smarter and faster with?Sybex?thanks to expert content,?knowledge from our?real-world?experience, advice on?mastering this adaptive?exam, access to the?Sybex?online interactive learning environment, and much more. Reinforce what?you've?learned with key topic exam essentials and chapter review questions.? The three co-authors of this book bring decades of experience as cybersecurity practitioners and educators, integrating real-world expertise with the practical knowledge?you'll?need to successfully pass the CISSP exam. Combined,?they've?taught cybersecurity concepts to millions of students through their books, video courses, and live training programs.? Along with the book, you also get access to?Sybex's?superior online interactive learning environment that includes:? Over?900?new and improved?practice test questions?with complete answer explanations. This includes?all of the questions?from the book?plus?four?additional?online-only?practice exams, each with?125?unique?questions. You can use the online-only practice exams as full exam simulations. Our questions will?help you identify where you need to study more. Get more than 90 percent of the answers correct, and?you're?ready to take the certification exam.? More than?700?Electronic Flashcards to reinforce your learning and give you last-minute test prep before the exam? A searchable glossary in PDF to give you instant access to the key terms you need to know for the exam? New for the 9th edition: Audio Review.? Author Mike Chapple reads the Exam Essentials for each chapter providing you with 2 hours and 50 minutes of new audio review for yet another way to reinforce your knowledge as you prepare. Coverage of all of the exam topics in the book means?you'll?be ready for:? Security and Risk Management? Asset Security? Security?Architecture and?Engineering? Communication and Network Security? Identity and Access Management?(IAM)? Security Assessment and Testing? Security Operations? Software Development Security

What will you learn from this book? Dive into C# and create apps, user interfaces, games, and more using this fun and highly visual introduction to C#, .NET Core, and Visual Studio. With this completely updated guide, which covers C# 8.0 and Visual Studio 2019, beginning programmers like you will build a fully functional game in the opening chapter. Then you'll learn how to use classes and object-oriented programming, create 3D games in Unity, and query data with LINQ. And you'll do it all by solving puzzles, doing hands-on exercises, and building real-world applications. By the time you're done, you'll be a solid C# programmer—and you'll have a great time along the way! What's so special about this book? Based on the latest research in cognitive science and learning theory, Head First C# uses a visually rich format to engage your mind rather than a text-heavy approach that puts you to sleep. Why waste your time struggling with new concepts? This multisensory learning experience is designed for the way your brain really works.

"Coding for Beginners in easy steps, 2nd edition will appeal to anyone, of any age, who wants to begin coding computer programs. Use this guide to help you quickly create a programming environment on your computer, then, in easy steps, learn how to: write Python code to create your programs, store information in data structures, control program flow using control structures, create re-usable blocks of program code, [and] code powerful algorithms and classes for Object Oriented Programming (OOP),"-- Publisher marketing.

Quickly start programming with Linux while learning the Raspberry Pi OS--the Linux distribution designed specifically for low-cost Raspberry Pis. This short guide reviews Linux commands, GUI, and shell scripting in a holistic manner by diving into both advanced and day-to-day tasks using the Raspberry Pi OS. You'll comfortably work with the Linux command prompt, and explore the RPi OS GUI and all its base applications. Then move into writing your own programs with shell-programming and using high-level languages such as C, C++, and Python 3. You'll also study hardware and GPIO programming. Use Python 3 for GPIO programming to drive LEDs and pushbuttons. Examples are written in Shell, C, C++, and Python 3. Graphical output is displayed in helpful screenshots that capture just what you'll see when working in this environment. All code examples are well tested on actual Raspberry Pi boards. After reading this book and following the examples, you'll be able to write programs for demonstration in your academic/industrial research work, business environment, or just your circle of friends for fun! You will: Navigate the core aspects of Linux and programming on a Linux platform Install Raspberry Pi OS on a Raspberry Pi Program in Shell, C, C++, and Python Redirect Io and work with the crontab.

Improve your understanding of all Core 1 and Core 2 A+ exam objectives and prepare for a new career as a computer technician The Third Edition of the CompTIA A+ Complete Practice Tests: Core 1 Exam 220-1101 and Core 2 Exam 220-1102 offers aspiring and practicing computer technicians essential and practical exam prep material for the industry favorite A+ certification. The hundreds of domain-by-domain practice questions cover all of the A+ exam objectives tested on the Core 1 and Core 2 exams, helping you prepare for success on the tests and in the real world. Just like the real exams, the practice questions contained within this resource cover mobile devices, networking, hardware, virtualization and cloud computing, hardware and network troubleshooting, operating systems, security, software troubleshooting, and operational procedures. These rigorous and realistic practice questions will get you ready for your first role as a computer technician and let you hit the ground running. This comprehensive set includes: Challenging questions designed to advance your understanding and comprehension of all covered exam domains Questions similar to those found on the real Core 1 and Core 2 A+ exams Access to the Sybex online test bank, with hundreds of questions and full-length practice exams Perfect for anyone prepping for the Core 1 and Core 2 A+ exams, CompTIA A+ Complete Practice Tests: Core 1 Exam 220-1101 and Core 2 Exam 220-1102 is also an ideal resource for aspiring and early-career computer technicians who want to improve their understanding of some of the foundational concepts they rely on each day in the field.

Master Amazon Web Services solution delivery and efficiently prepare for the AWS Certified SAA-C03 Exam with this all-in-one study guide The AWS Certified Solutions Architect Study Guide: Associate (SAA-C03) Exam, 4th Edition comprehensively and effectively prepares you for the challenging SAA-C03 Exam. This Study Guide contains efficient and accurate study tools that will help you succeed on the exam. It offers access to the Sybex online learning environment and test bank, containing hundreds of test questions, bonus practice exams, a glossary of key terms, and electronic flashcards. In this complete and authoritative exam prep blueprint, Ben Piper and David Clinton show you how to: Design resilient AWS architectures Create high-performing solutions Craft secure applications and architectures Design inexpensive and cost-optimized architectures An essential resource for anyone trying to start a new career as an Amazon Web Services cloud solutions architect, the AWS Certified Solutions Architect Study Guide: Associate (SAA-C03) Exam, 4th Edition will also prove invaluable to currently practicing AWS professionals looking to brush up on the fundamentals of their work.

The?one-stop resource for all?your?Python queries? Powerful and flexible, Python is one of the most popular programming languages in the world.?It's?got all the right stuff for the?software?driving the cutting-edge of the development world?machine learning, robotics, artificial intelligence, data science, etc. The good news is that it's also pretty straightforward?to?learn, with a simplified syntax, natural-language flow, and an amazingly supportive user community. The latest edition of? Python All-in-One?For?Dummies ?gives you an inside look at?the exciting possibilities offered in the Python world and?provides a?springboard?to?launch?yourself into?wherever you want your?coding?career to take you.? These?7?straightforward and friendly?mini-books?assume?the reader is?a beginning programmer, and?cover?everything from?the?basic elements?of?Python code to?introductions to the specific applications where you'll use it. Intended as a hands-on reference,?the?focus?is on?practice?over theory, providing you with?examples?to follow?as well as?code?for you to?copy?and?start?modifying in the "real world"?helping you?get?up and running in your area of interest almost right away.?This means you'll be?finishing off?your first app or building and?remote-controlling?your?own?robot?much?faster than you can believe. Get a thorough grounding?in?the language basics? Learn?how the syntax is applied in high-profile industries? Apply Python to projects in enterprise? Find out how Python can?get you?into?hot careers in?AI, big data, and more? Whether you're a newbie coder or?just?want to add Python to your?magic?box of tricks, this is the perfect, practical introduction?and one you'll return to as you grow your career.

Prepare to take the Cisco Certified Network Associate (200-301 CCNA) exam and get to grips with the essentials of networking, security, and automation Key Features Secure your future in network engineering with this intensive boot camp-style certification guide Gain knowledge of the latest trends in Cisco networking and security and boost your career prospects Design and implement a wide range of networking technologies and services using Cisco solutions Book Description In the dynamic technology landscape, staying on top of the latest technology trends is a must, especially if you want to build a career in network administration. Achieving CCNA 200-301 certification will validate your knowledge of networking concepts, and this book will help you to do just that. This exam guide focuses on the fundamentals to help you gain a high-level understanding of networking, security, IP connectivity, IP services, programmability, and automation. Starting with the functions of various networking components, you'll discover how they are used to build and improve an enterprise network. You'll then delve into configuring networking devices using a command-line interface (CLI) to provide network access, services, security, connectivity, and management. The book covers important aspects of network engineering using a variety of hands-on labs and real-world scenarios that will help you gain essential practical skills. As you make progress, this CCNA certification study guide will help you get to grips with the solutions and technologies that you need to implement and administer a broad range of modern networks and IT infrastructures. By the end of this book, you'll have gained the confidence to pass the Cisco CCNA 200-301 exam on the first attempt and be well-versed in a variety of network administration and security engineering solutions. What you will learn Understand the benefits of creating an optimal network Create and implement IP schemes in an enterprise network Design and implement virtual local area networks (VLANs) Administer dynamic routing protocols, network security, and automation Get to grips with various IP services that are essential to every network Discover how to troubleshoot networking devices Who this book is for This guide is for IT professionals looking to boost their network engineering and security administration career prospects. If you want to gain a Cisco CCNA certification and start a career as a network security professional, you'll find this book useful. Although no knowledge about Cisco technologies is expected, a basic understanding of industry-level network fundamentals will help you grasp the topics covered easily.

Publisher's Note: Products purchased from Third Party sellers are not guaranteed by the publisher for quality, authenticity, or access to any online entitlements included with the product. Fully redesigned and updated to provide accelerated review of all the topics covered on the new Core 1 and Core 2 CompTIA A+ exams Get on the fast track to becoming CompTIA A+ certified with this affordable, portable study tool. Inside, certification training guru Mike Meyers guides you on your exam preparation path, providing expert tips and sound advice along the way. With an intensive focus on only what you need to know to pass the CompTIA A+ 220-1001 & 220-1002 exams, this certification passport is your ticket to success on exam day. TECHNICAL BULLETS: Inside: Quick-reference tables and illustrated laptop teardown enhance coverage of mobile devices (Exam 1001, Domain 1.0) Quick-reference tables help you master hardware troubleshooting (Exam 1001, Domain 5.0) Practice questions and content review after each objective prepare you for exam mastery Enhanced coverage of network hardware and protocols, desktop hardware, and hardware and software troubleshooting Enhanced coverage of Windows 10, macOS, and Linux Enhanced coverage of computer security Covers all exam topics, including how to: Work with CPUs, RAM, BIOS, motherboards, power supplies, and other personal computer components Install, configure, and maintain hard drives Manage input devices and removable media Set up, upgrade, and maintain all versions of Windows Troubleshoot and fix computer problems Install printers and other peripherals Configure and secure mobile devices Connect to the Internet Set up wired and wireless networks Protect your personal computer and your network Implement virtualization and cloud-based technologies Online content includes: Practice exams for 220-1001 & 220-1002 Free sample of online video training from Mike Meyers Free sample of online interactive labs from Mike Meyers Mike's favorite PC tools and utilities CompTIA A+ Glossary

With the explosion of data, computing power, and cloud data warehouses, SQL has become an even more indispensable tool for the savvy analyst or data scientist. This practical book reveals new and hidden ways to improve your SQL skills, solve problems, and make the most of SQL as part of your workflow. You'll learn how to use both common and exotic SQL functions such as joins, window functions, subqueries, and regular expressions in new, innovative ways?as well as how to combine SQL techniques to accomplish your goals faster, with understandable code. If you work with SQL databases, this is a must-have reference. Learn the key steps for preparing your data for analysis Perform time series analysis using SQL's date and time manipulations Use cohort analysis to investigate how groups change over time Use SQL's powerful functions and operators for text analysis Detect outliers in your data and replace them with alternate values Establish causality using experiment analysis, also known as A/B testing

Enhance Linux security, application platforms, and virtualization solutions with SELinux to work within your boundaries, your rules, and your policies Key Features Learn what SELinux is, and how it acts as a mandatory access control system on Linux Apply and tune SELinux enforcement to users, applications, platforms, and virtualization solutions Use real-life examples and custom policies to strengthen the security posture of your systems Book Description Linux is a dominant player in many organizations and in the cloud. Securing the Linux environment is extremely important for any organization, and Security-Enhanced Linux (SELinux) acts as an additional layer to Linux system security. SELinux System Administration covers basic SELinux concepts and shows you how to enhance Linux system protection measures. You will get to grips with SELinux and understand how it is integrated. As you progress, you?ll get hands-on experience of tuning and configuring SELinux and integrating it into day-to-day administration tasks such as user management, network management, and application maintenance. Platforms such as Kubernetes, system services like systemd, and virtualization solutions like libvirt and Xen, all of which offer SELinux-specific controls, will be explained effectively so that you understand how to apply and configure SELinux within these applications. If applications do not exert the expected behavior, you?ll learn how to fine-tune policies to securely host these applications. In case no policies exist, the book will guide you through developing custom policies on your own. By the end of this Linux book, you?ll be able to harden any Linux system using SELinux to suit your needs and fine-tune existing policies and develop custom ones to protect any app and service running on your Linux systems. What you will learn Understand what SELinux is and how it is integrated into Linux Tune Linux security using policies and their configurable settings Manage Linux users with least-privilege roles and access controls Use SELinux controls in system services and virtualization solutions Analyze SELinux behavior through log events and policy analysis tools Protect systems against unexpected and malicious behavior Enhance existing policies or develop custom ones Who this book is for This Linux sysadmin book is for Linux administrators who want to control the secure state of their systems using SELinux, and for security professionals who have experience in maintaining a Linux system and want to know about SELinux. Experience in maintaining Linux systems, covering user management, software installation and maintenance, Linux security controls, and network configuration is required to get the most out of this book.

Algorithms and data structures are much more than abstract concepts. Mastering them enables you to write code that runs faster and more efficiently, which is particularly important for today?€?s web and mobile apps. Take a practical approach to data structures and algorithms, with techniques and real-world scenarios that you can use in your daily production code, with examples in JavaScript, Python, and Ruby. This new and revised second edition features new chapters on recursion, dynamic programming, and using Big O in your daily work. Use Big O notation to measure and articulate the efficiency of your code, and modify your algorithm to make it faster. Find out how your choice of arrays, linked lists, and hash tables can dramatically affect the code you write. Use recursion to solve tricky problems and create algorithms that run exponentially faster than the alternatives. Dig into advanced data structures such as binary trees and graphs to help scale specialized applications such as social networks and mapping software. You?€?ll even encounter a single keyword that can give your code a turbo boost. Practice your new skills with exercises in every chapter, along with detailed solutions. Use these techniques today to make your code faster and more scalable.

Learn GUI application development from the ground up by building simple projects that teach the fundamentals of using PyQt6. This 2nd edition includes updated code, programs, and new chapters to get you started using the newest version.  Taking a practical approach, each chapter will gradually teach more advanced and diverse concepts to aid you in designing and customizing interesting and professional applications. You'll start by learning important concepts related to GUI development, and then jump right into building different and exciting projects in every chapter. Along the way, you'll discover new widgets, layouts, and other concepts that will help you to build better UIs. You'll also construct more elaborate GUIs, covering topics that include storing data using the clipboard, graphics and animation, support for SQL databases, multithreading applications, and building modern-looking interfaces.  Using this knowledge, you'll be able to build a photo editor, games, a text editor, a working web browser, and an assortment of other GUIs. In the end, this book will guide you through the process of creating UIs to help you bring your own ideas to life.  Find out what you need to begin making your own applications with PyQt!  What You'll Learn Develop cross-platform UIs with PyQt and Python Use PyQt's many widgets and apply them by building real applications Build larger applications through a step-by-step approach and break the code into smaller chunks for deeper understanding Work with more complex applications in PyQt, covering SQL databases, multithreading, web browsers, and more Create modern-looking UIs with Qt Quick and QtQml using the latest version of PyQt Who This Book Is For Python developers who are looking to begin creating user interfaces and want to utilize the latest version of PyQt to gets started. Having prior knowledge of PyQt or other Python UI toolkits is not necessary to begin using this book.

Gain a deep understanding of building, maintaining, packaging, and shipping robust Python applications Key Features Discover the new features of Python, such as dictionary merge, the zoneinfo module, and structural pattern matching Create manageable code to run in various environments with different sets of dependencies Implement effective Python data structures and algorithms to write, test, and optimize code Book Description This new edition of Expert Python Programming provides you with a thorough understanding of the process of building and maintaining Python apps. Complete with best practices, useful tools, and standards implemented by professional Python developers, this fourth edition has been extensively updated. Throughout this book, you'll get acquainted with the latest Python improvements, syntax elements, and interesting tools to boost your development efficiency. The initial few chapters will allow experienced programmers coming from different languages to transition to the Python ecosystem. You will explore common software design patterns and various programming methodologies, such as event-driven programming, concurrency, and metaprogramming. You will also go through complex code examples and try to solve meaningful problems by bridging Python with C and C++, writing extensions that benefit from the strengths of multiple languages. Finally, you will understand the complete lifetime of any application after it goes live, including packaging and testing automation. By the end of this book, you will have gained actionable Python programming insights that will help you effectively solve challenging problems. What you will learn Explore modern ways of setting up repeatable and consistent Python development environments Effectively package Python code for community and production use Learn modern syntax elements of Python programming, such as f-strings, enums, and lambda functions Demystify metaprogramming in Python with metaclasses Write concurrent code in Python Extend and integrate Python with code written in C and C++ Who this book is for The Python programming book is intended for expert programmers who want to learn Python's advanced-level concepts and latest features. Anyone who has basic Python skills should be able to follow the content of the book, although it might require some additional effort from less experienced programmers. It should also be a good introduction to Python 3.9 for those who are still a bit behind and continue to use other older versions.