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Gold mine of critical IT interview Q&A for freshers Key Features Understand various best practices, principles, concepts, and guidelines Common pitfalls to avoid during interviews Trending programming languages including Python and R. Tools, best practices, techniques, and processes Methodologies and processes for DevOps, microarchitecture, SDLC, APIs, SOA integration Best practices and programming standards Holistic view of key concepts, principles, and best practices Description Are you a fresher looking to pass your first IT interview and get your hands on that dream job of yours? This is the best choice for you to make. By emphasizing on the importance of sufficient preparation, this book will help aspirants prepare for the IT interview process. With this practical hands-on guide, readers will not only learn industry-standard IT interview practices and tips, but will also get curated, situation-specific, and timeline-specific interview preparation techniques that will help them take a leap ahead of others in the queue. This book includes sample questions asked by top IT companies while hiring and the readers can expect a similar set of questions in their interview. The book also offers hints on solving them as you move ahead, and each hint is customized similar to how your actual interview is likely to progress. Whether you are planning to prepare for an interview through a semester for six months or preparing for just a weekend coding competition, this book will have all the necessary information that will lead you to your first successful job. What You Will Learn This is a comprehensive book on IT interviews for aspirants with profiles ranging from freshers to experienced (up to four years’ experience) and with different backgrounds such as BE, BCA, BSc, BCom, and MCA. This reference guide for freshers has a double advantage: It will guide them for their interview and discussions. It will help interview panels in selecting candidates for their practice/units while bringing in standardization in the selection process. This book has more than five hundred questions in eight domains, including a chapter on trending programming languages (Python and R). It presents an exhaustive question bank with special emphasis on practical scenarios and business cases. It covers all the key domains including data structures, OOPs, DBMS, OS, methodologies and processes, programming languages, and digital technologies. The book includes a section on frameworks and methodologies for quality assurance and testing, DevOps, Agile, Scrum, APIs, microservices, and SOA. Based on our experience, the assurance is that at least 80% of the content will be discussed during a typical interview. The book also has a section on pre- and post-interview preparations. The coverage is extensive in terms of depth and breadth of domains addressed in the book. But it can be referred to for selective reading as per the choice of domain. The book has more than a hundred diagrams depicting various scenarios, models, and methodologies. Who This Book is For Students: IT and other computer science streams Freshers from IT and computer science institutes Programmers/Software engineers/Developers: 0–4 years’ experience Interview panels Table of Contents 1. Introduction 2. Written Test & Group Discussion 3. Interview Preparations 4. Data Structure & Algorithms 5. Operating System 6. Object-oriented Programming (OOP) 7. C/C++ Programming 8. Java Programming 9. Database Management System (DBMS) 10. Trending Programming Languages: Python & R 11. Methodologies & Processes 12. HR Round
Learn how to build and program real autonomous robots Key Features Simplified coverage on fundamentals of building a robot platform. Learn to program Raspberry Pi for interacting with hardware. Cutting-edge coverage on autonomous motion, mapping, and path planning algorithms for advanced robotics. Description Practical Robotics in C++ teaches the complete spectrum of Robotics, right from the setting up a computer for a robot controller to putting power to the wheel motors. The book brings you the workshop knowledge of the electronics, hardware, and software for building a mobile robot platform. You will learn how to use sensors to detect obstacles, how to train your robot to build itself a map and plan an obstacle-avoiding path, and how to structure your code for modularity and interchangeability with other robot projects. Throughout the book, you can experience the demonstrations of complete coding of robotics with the use of simple and clear C++ programming. In addition, you will explore how to leverage the Raspberry Pi GPIO hardware interface pins and existing libraries to make an incredibly capable machine on the most affordable computer platform ever. What You Will Learn Write code for the motor drive controller. Build a Map from Lidar Data. Write and implement your own autonomous path-planning algorithm. Write code to send path waypoints to the motor drive controller autonomously. Get to know more about robot mapping and navigation. Who this book is for This book is most suitable for C++ programmers who have keen interest in robotics and hardware programming. All you need is just a good understanding of C++ programming to get the most out of this book. Table of Contents 1. Choose and Set Up a Robot Computer 2. GPIO Hardware Interface Pins Overview and Use 3. The Robot Platform 4. Types of Robot Motors and Motor Control 5. Communication with Sensors and other Devices 6. Additional Helpful Hardware 7. Adding the Computer to Control your Robot 8. Robot Control Strategy 9. Coordinating the Parts 10. Maps for Robot Navigation 11. Robot Tracking and Localization 12. Autonomous Motion 13. Autonomous Path Planning 14. Wheel Encoders for Odometry 15. Ultrasonic Range Detectors 16. IMUs: Accelerometers, Gyroscopes, and Magnetometers 17. GPS and External Beacon Systems 18. LIDAR Devices and Data 19. Real Vision with Cameras 20. Sensor Fusion 21. Building and Programming an Autonomous Robot About the Author Lloyd Brombach is a controls engineer, programmer, and long-time electronics and robotics enthusiast. He has competed at robotics events such as the NASA-funded 2007 Lunar Regolith Excavation Challenge and recently the 27th Intelligent Ground Vehicle Challenge. He is committed to making contributions to the robotics field that future roboticists and robot-owners will benefit from for years to come. Facebook Profile: www.facebook.com/practicalrobotics Youtube: www.youtube.com/practicalrobotics LinkedIn Profile: https://www.linkedin.com/in/lbrombach
Master python programming language in easy steps Key Features Start from basics of Python Control statement, loop structure, break, continue, and pass statement Detailed description of Python data types: string, tuple, list, and dictionary with the help of example Organizing code using function, modules, and packages Saving text and complex data in text, pickle, and JSON files Learn the use of time and time zones Parallel execution with the help of threading, multiprocessing, and subprocessing Helpful modules for industry Description It is said that learning Python is easy, but if a learner did not get the right path, then things can get complicated. This book is designed in such a way that you start from basics, followed by advance levels and then move on to some industry-related modules. The initial chapters are written in a simple manner, some chapters are of advance level. Start from the data structure of Python, such as string, list, tuple, and dictionary. The function and module chapter will let you know how to organize a large code. The built-in functions and modules like collections will give you greater flexibility to write efficient codes. The "time" chapter is very important when we deal with time-related things. The mid-chapter contains the advance chapters such as regular expressions, interaction with OS, and multithreading. These chapters are helpful when we want to search the pattern, run the OS commands, and execute the program in parallel. The last chapters are specially designed from an industry point of view. In order to ensure a high quality of code, we use config-parser to avoid hard-coding and logger to log the events. In the multiprocessing and subprocess chapter, you will learn creation, execution, and communication between the processes. What will you learn Python for developers is created by taking beginner and intermediate programmers. The book starts from scratch and takes you to the advanced level. After learning advance levels, you will learn parallel programming using multithreading, multiprocessing, and sub-processing. The book will provide information on modules which will be helpful form industry perspective. The book also contains the question for the preparation of the interview. You will also learn the difference between Python 2.7 and Python 3.7. Some of the chapters include an advance part, which will give an in-depth knowledge of the chapters. Who this book is for This book is for whoever wants to learn Python and aspires to become a developer or work on projects. Beginners can read this book easily, however, a little knowledge about the programming concepts would be helpful. Basic knowledge of computers would suffice. Table of Contents 1. Introduction to Python 2. Python Operators 3. Control statements and loop 4. Strings 5. List and tuple 6. Dictionary and sets 7. Functions 8. Modules 9. Exception handling 10. File handling 11. Collection 12. Random modules and built-in function 13. Time 14. Regular expression 15. Operating system interfaces 16. Class 17. Threads 18. Queue 19. Multiprocessing and Subprocess 20. Useful Modules About the Author Mohit (mohitraj.cs@gmail.com) is a Python programmer with a keen interest in the field of information security. He has completed his Bachelor's degree (B.tech)in Computer Science from Kurukshetra University, Kurukshetra, and a Master’s in Engineering (2012) in Computer Science from Thapar University, Patiala. He is a CEH, ECSA from EC-Council USA. He has worked in IBM, Teramatrix (Startup), and Sapient. LinkedIn Profile: https://www.linkedin.com/in/mohit-990a852a/
Concise Interpretation of every essential element of Python with Use-cases Key Features -Numerous examples and solutions to assist beginners in understanding the concept. -Contains visual representations of data structures. -Demonstrations of how to use data structures with a Python implementation. Description This book will aid you in your learning of the Python 3.x programming language. The chapters in this book will benefit every aspect of a programmer's or developer's life by preparing them to solve problems using Python programming and its key data structures and internals. This book explains the built-in and user-defined data structures in Python 3.x. The book begins by introducing Python, its fundamental data structures, and asymptotic notations. Once you master the fundamentals of Python, you'll be able to fully comprehend the built-in data structures. The book covers real-world applications to understand user-defined data structures and their actual implementation. Towards the end, it will help you investigate how to solve practical problems by first comprehending the issue at hand. After reading this book, you will be able to identify data structures and utilize them to solve a specific problem. You will learn about various algorithm implementations in Python and use this knowledge to advance your Python skills. After reading this book you will be able to plan your application’s migration to containers, prepare for Docker and Kubernetes Certifications, or apply for six digit DevOps jobs. What you will learn -Calculate the complexity of time and space using asymptotic notations. -Discover Python 3.x's built-in and user-defined data structures. -Create user-defined data structures from the bottom up. -Make use of libraries to create new user-defined data structures. -Determine and implement the most appropriate data structure for resolving issues. Who this book is for This book caters to those who want to enhance their careers as application developers, machine learning engineers, or researchers. Knowing basic programming concepts will be good, but not mandatory. Table of Contents 1. Python 2. Data Types 3. Algorithm Analysis 4. Data Structure Introduction 5. List 6. Dictionary 7. Tuple 8. Sets 9. Arrays 10. Stack 11. Queue 12. Trees 13. Linked Lists 14. Graphs 15. HashMaps 16. Practical Problem Solutions
Take tiny steps to enter the big world of data science through this interesting guide Key Features Acquire basic concepts related to python programming Understand the core functionalities of Python Programming Provide the information regarding idle IDE Computational Problem solving in Python Object oriented concepts in Python Database connectivity with Python Description In the last few years, python gained popularity and became the first choice of the students, teachers as well as professionals. It is being used in different fields such as education, software development, website development and also in various advanced research. In the field of education it allows students to learn the programming language in an easier and efficient manner. In the information technology field it can be used as a language for creating softwares as well as for web developments. It can be integrated with different platforms like Django. In research, Python programming can be used in simulation or it can be used for machine learning techniques. The primary goal of this text is to create a pedagogically sound and accessible textbook that emphasises on core concepts of Python programming. The book contains lots of practical examples to show the working of a particular code construct. The book can be very helpful in order to learn the basic and advance concepts of python programming. In the beginning of the book the focus is on the basic concepts related to core python programming starting from the installation phase of python interpreter to building the concepts for the reader towards python programming. Then the book moves towards the concept of different statements and programming conditions that python programming can handle in an easier manner. It then moves to the concepts related to object oriented programming and at last the reader will get to know about the database connectivity with the python program. What you will learn You can learn the core concept related to python programming You will get to learn how to program in python You can learn how Python programming helps to solve computational problems By reading this book you can learn how to work with python You will get familiarity with the python programming concepts. You will learn how to operate idle IDE and how it can be used to write python program in easier way. Who This Book is For The book is intended for anyone who wish to learn python programming language. This book also covers the syllabus of various universities and readers can use this book as a help in their academic education. This book can be used by readers to start with python programming from basics to advanced level even without having any prior knowledge of python programming. Table of Contents Introduction to Python Python Fundamentals Expression and Operators Control Statements Functions List Processing Tuple Processing Dictionary Processing String Processing File Processing Exception Handling Object Oriented Programming Inheritance & Polymorphism Database Design in Python About the Author Rydhm Beri teaches in BBK DAV College for Women, Amritsar, as an Assistant Professor, since last three years and has 5 years of experience in the field of education and 3 years of experience in research. Her research interests include MANETs, Cloud computing, IOT, Fog Computing. She has done M.Sc. Computer Science from BBK DAV College for Women, Amritsar and MCA from Lovely Professional University and is currently pursuing Ph.D. in the field of IOT and embedded systems. She has a deep knowledge of programming and has worked for different projects in languages like, .Net, Java, PHP and Python. Currently she is working on Python programming and relate it to IOT and Machine learning field. She has published 19 research papers out of which 17 are international and 2 are national research papers. She has also been working as a reviewer in conferences and journals. In her leisure time, she likes to attend workshops and conferences and likes to program applications. Blog links: https://rydhmberi.weebly.com/
Create, develop and deploy a Smart Contract with ease Key Features Familiarize yourself with Blockchain terminology and its concepts Understand and implement the Cryptography basic principles Understand the life cycle of an Ethereum Transaction Explore and work with Dapps on Ethereum A practical guide that will teach you to create and deploy Smart Contracts with Solidity Description The book covers the fundamentals of Blockchain in detail and shows how to create a Smart Contract with ease. This book is both for novices and advanced readers who want to revisit the Smart Contract development process. The book starts by introduces Blockchain, its terminology, its workflow, and cryptographic principles. You will get familiar with the basics of Ethereum and some Distributed apps available on Ethereum. Furthermore, you will learn to set-up Ethereum Blockchain on Azure. Then you will learn how to create, develop, and deploy a smart contract on Ethereum. Towards the end, you will understand what Blockchain uses and advantages in the real-world scenario. What you will learn Get familiar with the basics of Blockchain and Bitcoin Setup a development environment for programming Smart Contracts Learn how to set up an Ethereum Blockchain on Azure Understand the basics of Solidity, an object-oriented programming language for writing smart contracts Learn how to test and deploy a smart contract Who this book is for This book is for Developers, Architects, and Software/Technology Enthusiasts who are interested in Blockchain, Ethereum, and Smart Contracts. It is also for Developers who want to build a Blockchain-based DApps on Ethereum Network. It is for everyone who is learning Solidity and is looking to create and integrate Blockchain into their project. Table of Contents Section 1: What is Blockchain and how does it work? 1. Blockchain – The Concept 2. Blockchain – Cryptographic Principles Section 2: Ethereum and DAAPS 1. Distributed Applications 2. Setting up Ethereum Blockchain on Azure Section 3: Smart Contracts Development 1. Setting up an Environment for Smart Contracts Development 2. Programming Smart Contracts Section 4: Blockchain in Real World 1. Blockchain-Offerings and Usages About the Author Akhil Mittal lives in Noida, India. He is two times Microsoft MVP (Most Valuable Professional) firstly awarded in 2016 continued in 2017 in Visual Studio and Technologies category, C# Corner MVP since 2013, Code Project MVP since 2014, a blogger, author and likes to write/read technical articles, blogs, and books. Akhil actively contributes his technical articles on CodeTeddy (www.codeteddy.com) He works as a Sr. Consultant with Magic EdTech (www.magicedtech.com) which is recognized as a global leader in delivering end to end learning solutions. He has an experience of more than 12 years in developing, designing, architecting enterprises level applications primarily in Microsoft Technologies. He has diverse experience in working on cutting edge technologies that include Microsoft Stack, AI, Machine Learning, Blockchain and Cloud computing. Akhil is an MCP (Microsoft Certified Professional) in Web Applications and Dot Net Framework.
Let us break the SQL interview with the help of SQL Server interview questions. Key Features Database Basic Concepts SQL Fundamentals DDMS, SQL Statements, and Clauses SQL Operators, Datatypes, and Keywords SQL Functions, Wildcards and Dates SQL Joins and CASE Statement SQL DDL, DCL, and DTL Statements SQL Stored procedures, Triggers, Views, and Transactions SQL Keys, Indexes, Injection, and Constraints SSRS, SSIS, SQL Cloud database (Azure), and JSON Support New features of SQL 2016, 2017, and 2019 SQL Performance Improvement Tips Fuzzy Interview Questions and Answers Description This book gives you a complete idea about the SQL database. It starts from a very basic concept like what is a database, its usage, types, creation, and data storage, security, sorting, and searching for a stored procedure. This book is a complete set of interview breaking questions and answers with live examples and plenty of screenshots. This book takes you on a journey to mastering the SQL database, including SQL datatypes, functions, triggers, and stored procedures. This book also covers the latest and new features of SQL 2016, 2017 and 2019 CTP with examples. In the beginner section, we start with very basic concepts like what is a database, why to use a database, different types of database types, what is SQL, its usages, advantage and disadvantages, SQL datatypes, its different operators and how to use them with samples. In the intermediate section, we will learn about the different SQL functions, SQL Joins (used to fetch values from multiple SQL tables) and SQL DDL, DCL, and DTL commands. (About the last chapters) This is the advanced section of the book where we have provided an explanation of the SQL stored procedure, triggers and SQL view concepts, additionally, we have covered SQL core concepts like keys, indexes, injections and constraints. We have also introduced cutting-edge concepts like SSRS, SSIS, SQL Cloud database (Azure), JSON Support and a list of the new features of SQL 2016, 2017, CTP-2019 with SQL performance improvement tips. Finally, we have ended the book with a series of random SQL questions and answers. What you will learn After reading this book, you will be able to understand SQL database concepts, handle core database activities like data security, searching, migration, and sorting. You will be able to handle the database transactions, use different SQL datatypes, functions, triggers, and stored procedures to save and retrieve data from the database. You will also be able to understand advanced SQL concepts like SQL reporting services, integration services, cloud database and new features from the latest SQL versions like 2016, 2017, and 2019. Who this book is for This book is built in such a way that it is useful for all categories such as technical or non-technical readers. This book is perfect. If you are a fresher and you want to learn about SQL, or if you are a teacher and you want to spread SQL knowledge, this book is very helpful. If you want to crack the database interview or if you are working as a DBA and you want to upgrade your knowledge, or if you are backend developer, database tester, performance optimizer, or if your role is that of a database admin, SQL developer, data analyst, mobile app developer or if you are working on core SQL concepts, this book is just right for you. This book is very useful as it contains many simple real-time scenarios for each concept. All functionalities are explained with real SQL screenshots and database records. Table of Contents 1. Database and SQL Basics 2. DDMS SQL Statements and Clauses 3. SQL Operators, Keywords, and Datatypes 4. SQL Operators 5. SQL Functions, Wildcards, and Dates 6. SQL Joins and CASE Statement 7. SQL DDL, DCL, and DTL Statements 8. SQL Stored Procedures, Triggers, Views, and Transactions 9. SQL Keys, Indexes, Injections, and Constraints 10. SSRS, SSIS, SQL Cloud database (Azure), and JSON Support 11. New features of SQL 2016, 2017, and 2019 12. SQL Performance Improvement Tips and Fuzzy Interview Questions About the Author Prasad Kulkarni is a Microsoft MVP reconnect, Technical leader, Author, Agile Scrum Master and Blogger. He has 13 years of core experience in Microsoft technologies such as SQL, ASP.NET, MVC, ASP.NET Core, VB.NET, SQL server, word Automation, Office development etc. and other technologies such as HTML, CSS, jQuery, JavaScript, Bootstrap, and XML etc. He is very passionate about Microsoft .NET technology. He likes to write articles and blogs on different aspects of SQL stuff and .NET, also like to help developers resolve their issues and boost them on Microsoft Technologies. Prasad has impressive certifications as Microsoft Certified Professional (MCP), Microsoft Certified Technology Specialist (MCTS) and Agile Scrum Master, Prasad was also awarded the most valuable member at dotnetspider, most popular curator, most active curator, and featured curator at Microsoft Curah, and editor at dotnetspider, he has awarded for his articles on codeproject. LinkedIn Profile: https://in.linkedin.com/in/prasad-kulkarni-389152a5
Want to know more about routing concepts in Angular? Key Features In this book, the reader will be able to focus on one concept of Angular in deep. Some of the concepts of Routing discussed are:- Lazy Loading- Routing Parameters- Route Guards The examples in the book talk us through building an e-commerce website which helps the reader to connect to the real-life business scenarios. The book commences with an introduction to the important concepts of Angular to understand in general and then moves to how Routing helps us build our applications much effectively. By the end of this book, you should be able to understand Routing perfectly being able to perform all the operations using Routing. Do not forget to code along with your reading the book. This will give you hands-on experience to gain out of the book. The book will be provided with a GitHub link to it. DescriptionA basic understanding of HTML, CSS, JavaScript would be good to quickly get through the concepts of Angular. If you are already working in Angular, you are all good to go. The book starts with the introduction of basic concepts and structure of Angular applications like Components, Services, Modules, etc. This further focuses on the concepts of Routing, i.e. navigating from one view to another in your single-page applications. For all the web developers & students who love building web-apps, this book on Angular Routing will add great value to your skill set helping you to develop your applications with faster performance and refined view.What You Will LearnIn this book, you will learn the concepts of Angular routing to help you make your Angular applications more effective and have better performance when dealing with data.Who This Book is For This book is for learning the concept of routing in angular applications. If you are working in Angular, this book serves the purpose of clearing all your concepts around navigation from one view to another in single page applications. If you are new to Angular, this book will give you an introduction of the basic concepts of Angular and then give you the expertise in one of those concepts, Routing. Table of Contents 1. Introduction 2. Introduction to Routing 3. Basics of Routing 4. Routing Features 5. Routing Parameters 6. Child Routes 7. Secondary Routes 8. Route Guards 9. Grouping & Component-less Routes 10. Route Resolvers 11. Lazy Loading 12. CRUD operations with Routing About the AuthorNishu Goel is a software developer currently working with IBM in Bengaluru, India. She has completed her Bachelor studies in computer science as in 2018. She works on Angular and keeps learning on the go. She loves to write blog posts and talk around the basic concepts of Angular at conferences. She is also the author of "Angular for Beginners" course on Udemy. With her work to apply technology towards sustainable development goals (SDGs) by the United Nations living in the villages of Jharkhand, India for three months, she has been awarded by the Prime Minister of the UK. LinkedIn Profile: https://www.linkedin.com/in/nishu-goel-ab557041/ Blog: https://nishugoel.wordpress.com/