This ebook discusses 100 plus real problems and their solutions for microservices architecture based on Spring Boot, Spring Cloud, Cloud Native Applications. It covers core concepts of microservices architecture, various design patterns, interview questions & answers, security in microservices, testing strategies and best practices in distributed system design. Table of Contents: 1. Core concepts related Spring powered microservices architecture 2. Introduction to Spring Boot, Spring Cloud, Cloud Native Applications, Netflix OSS 3. Design Patterns in microservices architecture - API Gateway, Hystrix, etc. 4. 100 plus Interview Questions 5. Security - OAuth2 and JWT 6. Testing Strategies in microservices architecture 7. Best Practices and common pitfalls

Gold mine of microservices interview Questions & Answers for aspirants and domain experts. DESCRIPTION An SME typically attends several interviews and discussions for jobs or projects during his or her career. There is always a dire need to look up and read multiple books and references before these interviews/discussions so that you stay on top of things. This book will assist software engineers, programmer analysts, designers, consultants, technical, and solution, domain, and enterprise architects to perform well in microservices interview discussions and to launch a successful career. This book also tackles the NFR domain, which is the key aspect to be addressed while creating microservices applications. This book will also assist SMEs to become competent in their respective areas. Usually, it takes a good amount of time to understand the core concepts, fundamentals, patterns, and principles but this book is a gold mine of topics that are typically discussed during a microservices interview. The book is an honest attempt to share with practitioners, SMEs, and aspirants my experiences, learning, insights and proven methodologies that will benefit them in the long run. Interviewers will also be able to leverage this book to make sure they hire candidates with the right competencies depending on the job requirements. The primary audiences for this title are the gamut of roles starting from IT consultants, Programmer Analysts, Software Engineers, Solution Architects, and Interview Panelists who support strategic and tactical engagements for Fortune 100 customers worldwide. This title is for SMEs with background and competencies in architecture, design, and development of microservices-based applications and people who would like to gain advanced and next-level skills. The book provides a comprehensive approach for preparing for job interviews. It covers all key domains including, Core & Advance Concepts, Patterns, Frameworks & Tools, and DevOps. KEY FEATURES ● More than 200 questions in 5 domains including a chapter on patterns, practices, and NFRs. ● Extended coverage from architecture, design, development to NFRs domains. ● The book can be selectively read based on the relevant domains. ● Extensive coverage in terms of depth and breadth of domains. ● The title has more than 50 diagrams depicting various scenarios, models, and methodologies. WHAT WILL YOU LEARN ● Concepts, principles, and guidelines for various domains for the microservices ecosystem. ● This book presents an exhaustive question bank with special emphasis on practical scenarios and business cases. ● Based on our experience, we assure that at least 80% of the contents will be discussed during a typical interview. ● Common pitfalls to be avoided and patterns to leverage ● Frameworks, methodologies, and design approach leveraged for microservices topologies ● Design guidelines used for architecting microservices applications & systems ● Provides a holistic view of key concepts, design principles, and patterns related to evangelizing microservices applications ● Leverage the book as a reference guide for adopting best practices, standards, and design guidelines ● Extensive coverage in terms of depth and breadth of domains. The book can also be read selectively as per the choice of domain. ● This book has more than two hundred questions in five domains and around 50 depictions. WHO THIS BOOK IS FOR This books is for Enterprise Architects, Solution Architects, and Technical Architects/Designers, Project Managers, Programmer Analysts and Software Engineers, Students and Interview Panelists TABLE OF CONTENTS 1. Introduction 2. Core Concepts 3. Advance Concepts 4. Patterns, Practices and NFRs 5. Tools and Frameworks 6. DevOps

Gold mine of microservices interview Questions & Answers for aspirants and domain experts.KEY FEATURES 1. More than 200 questions in 5 domains including a chapter on patterns, practices, and NFRs.2. Extended coverage from architecture, design, development to NFRs domains. 3. The book can be selectively read based on the relevant domains.4. Extensive coverage in terms of depth and breadth of domains.5. The title has more than 50 diagrams depicting various scenarios, models, and methodologies.DESCRIPTION An SME typically attends several interviews and discussions for jobs or projects during his or her career. There is always a dire need to look up and read multiple books and references before these interviews/discussions so that you stay on top of things. This book will assist software engineers, programmer analysts, designers, consultants, technical, and solution, domain, and enterprise architects to perform well in microservices interview discussions and to launch a successful career. This book also tackles the NFR domain, which is the key aspect to be addressed while creating microservices applications.This book will also assist SMEs to become competent in their respective areas. Usually, it takes a good amount of time to understand the core concepts, fundamentals, patterns, and principles but this book is a gold mine of topics that are typically discussed during a microservices interview. The book is an honest attempt to share with practitioners, SMEs, and aspirants my experiences, learning, insights and proven methodologies that will benefit them in the long run. Interviewers will also be able leverage this book to make sure they hire candidate with the right competencies depending on the job requirements.The primary audiences for this title are the gamut of roles starting from IT consultants, Programmer Analysts, Software Engineers, Solution Architects, and Interview Panelists who support strategic and tactical engagements for Fortune 100 customers worldwide. This title is for SMEs with background and competencies in architecture, design, and development of microservices-based applications and people who would like to gain advanced and next-level skills. The book provides a comprehensive approach for preparing for job interviews. It covers all key domains including, Core & Advance Concepts, Patterns, Frameworks & Tools, and DevOps. WHAT WILL YOU LEARN Concepts, principles, and guidelines for various domains for the microservices ecosystem.This book presents an exhaustive question bank with special emphasis on practical scenarios and business cases. Based on our experience, we assure that at least 80% of the contents will be discussed during a typical interview.Common pitfalls to be avoided and patterns to leverageFrameworks, methodologies, and design approach leveraged for microservices topologiesDesign guidelines used for architecting microservices applications & systemsProvides a holistic view of key concepts, design principles, and patterns related to evangelizing microservices applicationsLeverage the book as a reference guide for adopting best practices, standards, and design guidelinesExtensive coverage in terms of depth and breadth of domains. The book can also be read selectively as per the choice of domain.This book has more than two hundred questions in five domains and around 50 depictions.WHO THIS BOOK IS FOR This books is for Enterprise Architects, Solution Architects, and Technical Architects/Designers, Project Managers, Programmer Analysts and Software Engineers, Students and Interview Panelists TABLE OF CONTENTS1. Introduction2. Core Concepts3. Advance Concepts4. Patterns, Practices and NFRs5. Tools and Frameworks6. DevOpsABOUT THE AUTHORSameer Paradkar is an enterprise architect with more than 20 years of solid experience in the ICT industry, which spans across consulting, product development, and systems integration. He is an Open Group TOGAF, Oracle Master Java EA, TMForum NGOSS, IBM SOA Solutions, IBM Cloud Solutions, IBM MobileFirst, ITIL Foundation V3, COBIT 5, and AWS Solution Architect-Associate certified enterprise architect. He serves as an advisory architect on enterprise architecture programs and continues to work as a subject matter expert. He has worked on multiple architecture transformations and modernization engagements (in the USA, UK, Europe, Asia Pacific, and the Middle East Regions) that presented a phased roadmap to the transformation that maximized the business value while minimizing costs and risks. Sameer is part of the Architecture Group in AtoS. Prior to AtoS, he has worked in organizations such as EY - IT Advisory, IBM GBS - Application Innovation Services, Wipro Consulting Services - Enterprise Architecture, TechMahindra - Systems and Transformations, and Infosys Technologies - Product Engineering. He specializes in enterprise transformation and modernization engagements.LinkedIn Profile: linkedin.com/in/sameerparadkar

240+ Real Java Interview Questions on Core Java, Threads and Concurrency, Algorithms, Data Structures, Design Patterns, Spring, Hibernate, Puzzles & Sample Interview Questions for Investment Banks, HealthCare IT, Startups, Product and Service based companies. This book is ideal if you are preparing for Java Job Interview in Indian Market.Topics Covered in eBook Core Java (Collections, Concurrency & multi-threading, Lambda, Stream & Generics) Hibernate & Spring Problems Object Oriented Design Problems. Data structure and Algorithm problems This book tries to fill in the knowledge gaps for Java developers appearing for interviews in investment banking domain (RBS, BlackRock, UBS, Morgan Stanley, CitiGroup, Credit Suisse, Barclays Capital, Goldman, J.P. Morgan, Bank of America & Nomura, HSBC), product company (Oracle, Adobe, Markit), or service sector companies (Wipro, Infosys, HCL, Sapient, TCS). This book contains collection of Java related questions which are considered important for the interview preparation. A fair try has been given to address the Question, otherwise references has been provided for in depth study.

Introduction: Top 50 Microservices Interview Questions & AnswersUpdated: 2020 versionLatest Architecture: Microservices is the latest trend in Technology world. It is the new architecture on which very few books have been written. If you are aiming to get a job in companies with Microservices architecture like- Netflix, Amazon etc. then this book can help you prepare for the technical interview.Q & A Format: This books also covers Architect level information in Q&A format for easy grasp of the concept. This book helps you in understanding the deep concepts behind Microservices in a Q&A format. It is an important topic for a software developer to know about Microservices. Great Compilation: It is a compilation of advanced Microservices interview questions after attending dozens of technical interviews in top-notch companies like- Facebook, Google, Ebay, Amazon etc. Each question is accompanied with an answer so that you can prepare for job interview in short time. Practical Purpose: Often, these questions and concepts are used in our daily programming work. But these are most helpful when an Interviewer is trying to test your deep knowledge of Microservices concepts. How will this book help me?By reading this book, you do not have to spend time searching the Internet for Microservices interview questions. We have already compiled the list of the most popular and the latest Microservices Interview questions. Are there answers in this book?Yes, in this book each question is followed by an answer. So you can save time in interview preparation. What is the best way of reading this book?You have to first do a slow reading of all the questions in this book. Once you go through them in the first pass, mark the questions that you could not answer by yourself. Then, in second pass go through only the difficult questions. After going through this book 2-3 times, you will be well prepared to face a technical interview in Microservices architecture. What is the level of questions in this book?This book contains questions that are good for a Associate Software engineer to an Architect level. The difficulty level of question varies in the book from a Fresher to an Experienced professional. What are the sample questions in this book? What are the characteristics of a Good Microservice? Is it a good idea for Microservices to share a common database? What are the issues in using REST over HTTP for Microservices? What is Reactive Extensions? What is Semantic Versioning? What is Continuous Integration? What is Ubiquitous language? What is Mike Cohn's Test Pyramid? How can we eradicate non-determinism in tests? What is PACT? What is a Consumer Driven Contract (CDC)? What is Canary Releasing? How can we separate Deployment from Release of Microservices? How will you implement Service Discovery in Microservices architecture? What is the difference between Orchestration and Choreography in Microservices architecture?

Cracking Java Interview is not easy and one of the main reasons for that is Java is very vast. There are a lot of concepts and APIs to master to become a decent Java developer. Many people who are good at general topics like Data Structure and Algorithms, System Design, SQL, and Database fail to crack the Java interview because they don't spend time to learn the Core Java concepts and essential APIs and packages like Java Collection Framework, Multithreading, JVM Internals, JDBC, Design Patterns, and Object-Oriented Programming. This book aims to fill that gap and introduce you to classical Java interview questions from these topics. By going through these questiosn and topic you will not only expand your knowledge but also get ready for your Next Java interview. If you are preparing for Java interviews then I highly recommend you to go through these questions befor your telephonic or face-to-face interviews, you will not only gain confidence and knowelge to answer the question but also learn how to drive Java interview in your favor. This is the single most important tip I can give you as a Java developer. Always, remember, your answers drive interviews, and these questions will show you how to drive Interviewer to your strong areas. All the best for the Java interview and if you have any questions or feedback you can always contact me on twitter javinpaul (http: //twitter.com/javinpaul) or comment on my blogs Javarevisited(http: //javarevisited.blogspot.com) and Java67(http: //java67.c

Summary Testing Java Microservices teaches you to implement unit and integration tests for microservice systems running on the JVM. You'll work with a microservice environment built using Java EE, WildFly Swarm, and Docker. You'll learn how to increase your test coverage and productivity, and gain confidence that your system will work as you expect. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the Technology Microservice applications present special testing challenges. Even simple services need to handle unpredictable loads, and distributed message-based designs pose unique security and performance concerns. These challenges increase when you throw in asynchronous communication and containers. About the Book Testing Java Microservices teaches you to implement unit and integration tests for microservice systems running on the JVM. You'll work with a microservice environment built using Java EE, WildFly Swarm, and Docker. You'll advance from writing simple unit tests for individual services to more-advanced practices like chaos or integration tests. As you move towards a continuous-delivery pipeline, you'll also master live system testing using technologies like the Arquillian, Wiremock, and Mockito frameworks, along with techniques like contract testing and over-the-wire service virtualization. Master these microservice-specific practices and tools and you'll greatly increase your test coverage and productivity, and gain confidence that your system will work as you expect. What's Inside Test automation Integration testing microservice systems Testing container-centric systems Service virtualization About the Reader Written for Java developers familiar with Java EE, EE4J, Spring, or Spring Boot. About the Authors Alex Soto Bueno and Jason Porter are Arquillian team members. Andy Gumbrecht is an Apache TomEE developer and PMC. They all have extensive enterprise-testing experience. Table of Contents An introduction to microservices Application under test Unit-testing microservices Component-testing microservices Integration-testing microservices Contract tests End-to-end testing Docker and testing Service virtualization Continuous delivery in microservices