Top 50 Docker Interview Questions and Answers
Top 50 Docker Interview Questions and Answers

Author: Knowledge Powerhouse

Publisher:

Published: 2016-12-22

Total Pages: 43

ISBN-13: 9781520212500

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This book contains basic to expert level Docker interview questions that an interviewer asks. Each question is accompanied with an answer so that you can prepare for job interview in short time. We have compiled this list after attending dozens of technical interviews in top-notch companies like- Google, Facebook, Netflix, Amazon etc.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 Docker.The difficulty rating on these Questions varies from a Fresher level software programmer to a Senior software programmer. 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 on Docker for an experienced programmer.Sample Questions are:What is Docker?What is the difference between Docker image and Docker container?How will you remove an image from Docker?How is a Docker container different from a hypervisor?Can we write compose file in json file instead of yaml?Can we run multiple apps on one server with Docker?What are the common use cases of Docker?What are the main features of Docker-compose?What is the most popular use of Docker?What is the role of open source development in the popularity of Docker?What is the difference between Docker commands: up, run and start?What is Docker Swarm?What are the features of Docker Swarm?What is a Docker Image?What is a Docker Container?What is Docker Machine?Why do we use Docker Machine?How will you create a Container in Docker?Do you think Docker is Application-centric or Machine-centric?Can we lose our data when a Docker Container exits?Can we run more than one process in a Docker container?What are the objects created by Docker Cloud in Amazon Web Services (AWS) EC2?How will you take backup of Docker container volumes in AWS S3?What are the three main steps of Docker Compose?What is Pluggable Storage Driver architecture in Docker based containers?What is Docker Hub?What are the main features of Docker Hub?What are the main security concerns with Docker based containers?What are the security benefits of using Container based system?How can we check the status of a Container in Docker?What are the main benefits of using Docker?How does Docker simplify Software Development process?What is the basic architecture behind Docker?What are the popular tasks that you can do with Docker Command line tool?What type of applications- Stateless or Stateful are more suitable for Docker Container?How can Docker run on different Linux distributions?Why do we use Docker on top of a virtual machine?How can Docker container share resources?What is the difference between Add and Copy command in a Dockerfile?What is Docker Entrypoint?What is ONBUILD command in Docker?What is Build cache in Docker?What are the most common instructions in Dockerfile?What is the purpose of EXPOSE command in Dockerfile?What are the different kinds of namespaces available in a Container?How will you monitor Docker in production?What are the Cloud platforms that support Docker?How can we control the startup order of services in Docker compose?Why Docker compose does not wait for a container to be ready before moving on to start next service in dependency order?How will you customize Docker compose file for different environments?

Java/J2EE Job Interview Companion
Java/J2EE Job Interview Companion

Author: Arulkumaran Kumaraswamipillai

Publisher:

Published: 2007

Total Pages: 356

ISBN-13: 9781411668249

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400+ Java/J2EE Interview questions with clear and concise answers for: job seekers (junior/senior developers, architects, team/technical leads), promotion seekers, pro-active learners and interviewers. Lulu top 100 best seller. Increase your earning potential by learning, applying and succeeding. Learn the fundamentals relating to Java/J2EE in an easy to understand questions and answers approach. Covers 400+ popular interview Q&A with lots of diagrams, examples, code snippets, cross referencing and comparisons. This is not only an interview guide but also a quick reference guide, a refresher material and a roadmap covering a wide range of Java/J2EE related topics. More Java J2EE interview questions and answers & resume resources at http: //www.lulu.com/java-succes

Jesus Outside the Lines
Jesus Outside the Lines

Author: Scott Sauls

Publisher: Tyndale House Publishers, Inc.

Published: 2015-03-01

Total Pages: 289

ISBN-13: 1496403835

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Whether the issue of the day on Twitter, Facebook, or cable news is our sexuality, political divides, or the perceived conflict between faith and science, today’s media pushes each one of us into a frustrating clash between two opposing sides. Polarizing, us-against-them discussions divide us and distract us from thinking clearly and communicating lovingly with others. Scott Sauls, like many of us, is weary of the bickering and is seeking a way of truth and beauty through the conflicts. Jesus Outside the Lines presents Jesus as this way. Scott shows us how the words and actions of Jesus reveal a response that does not perpetuate the destructive fray. Jesus offers us a way forward—away from harshness, caricatures, and stereotypes. In Jesus Outside the Lines, you will experience a fresh perspective of Jesus, who will not (and should not) fit into the sides.

Build a Career in Data Science
Build a Career in Data Science

Author: Emily Robinson

Publisher: Manning

Published: 2020-03-24

Total Pages: 352

ISBN-13: 1617296244

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Summary You are going to need more than technical knowledge to succeed as a data scientist. Build a Career in Data Science teaches you what school leaves out, from how to land your first job to the lifecycle of a data science project, and even how to become a manager. Purchase of the print book includes a free eBook in PDF, Kindle, and ePub formats from Manning Publications. About the technology What are the keys to a data scientist’s long-term success? Blending your technical know-how with the right “soft skills” turns out to be a central ingredient of a rewarding career. About the book Build a Career in Data Science is your guide to landing your first data science job and developing into a valued senior employee. By following clear and simple instructions, you’ll learn to craft an amazing resume and ace your interviews. In this demanding, rapidly changing field, it can be challenging to keep projects on track, adapt to company needs, and manage tricky stakeholders. You’ll love the insights on how to handle expectations, deal with failures, and plan your career path in the stories from seasoned data scientists included in the book. What's inside Creating a portfolio of data science projects Assessing and negotiating an offer Leaving gracefully and moving up the ladder Interviews with professional data scientists About the reader For readers who want to begin or advance a data science career. About the author Emily Robinson is a data scientist at Warby Parker. Jacqueline Nolis is a data science consultant and mentor. Table of Contents: PART 1 - GETTING STARTED WITH DATA SCIENCE 1. What is data science? 2. Data science companies 3. Getting the skills 4. Building a portfolio PART 2 - FINDING YOUR DATA SCIENCE JOB 5. The search: Identifying the right job for you 6. The application: Résumés and cover letters 7. The interview: What to expect and how to handle it 8. The offer: Knowing what to accept PART 3 - SETTLING INTO DATA SCIENCE 9. The first months on the job 10. Making an effective analysis 11. Deploying a model into production 12. Working with stakeholders PART 4 - GROWING IN YOUR DATA SCIENCE ROLE 13. When your data science project fails 14. Joining the data science community 15. Leaving your job gracefully 16. Moving up the ladder

Learning Docker
Learning Docker

Author: Jeeva S. Chelladhurai

Publisher: Packt Publishing Ltd

Published: 2017-05-31

Total Pages: 289

ISBN-13: 178646201X

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Docker lets you create, deploy, and manage your applications anywhere at anytime – flexibility is key so you can deploy stable, secure, and scalable app containers across a wide variety of platforms and delve into microservices architecture About This Book This up-to-date edition shows how to leverage Docker's features to deploy your existing applications Learn how to package your applications with Docker and build, ship, and scale your containers Explore real-world examples of securing and managing Docker containers Who This Book Is For This book is ideal for developers, operations managers, and IT professionals who would like to learn about Docker and use it to build and deploy container-based apps. No prior knowledge of Docker is expected. What You Will Learn Develop containerized applications using the Docker version 17.03 Build Docker images from containers and launch them Develop Docker images and containers leveraging Dockerfiles Use Docker volumes to share data Get to know how data is shared between containers Understand Docker Jenkins integration Gain the power of container orchestration Familiarize yourself with the frequently used commands such as docker exec, docker ps, docker top, and docker stats In Detail Docker is an open source containerization engine that offers a simple and faster way for developing and running software. Docker containers wrap software in a complete filesystem that contains everything it needs to run, enabling any application to be run anywhere – this flexibily and portabily means that you can run apps in the cloud, on virtual machines, or on dedicated servers. This book will give you a tour of the new features of Docker and help you get started with Docker by building and deploying a simple application. It will walk you through the commands required to manage Docker images and containers. You'll be shown how to download new images, run containers, list the containers running on the Docker host, and kill them. You'll learn how to leverage Docker's volumes feature to share data between the Docker host and its containers – this data management feature is also useful for persistent data. This book also covers how to orchestrate containers using Docker compose, debug containers, and secure containers using the AppArmor and SELinux security modules. Style and approach This step-by-step guide will walk you through the features and use of Docker, from Docker software installation to the impenetrable security of containers.

T-SQL Window Functions
T-SQL Window Functions

Author: Itzik Ben-Gan

Publisher: Microsoft Press

Published: 2019-10-18

Total Pages: 716

ISBN-13: 0135861624

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Use window functions to write simpler, better, more efficient T-SQL queries Most T-SQL developers recognize the value of window functions for data analysis calculations. But they can do far more, and recent optimizations make them even more powerful. In T-SQL Window Functions, renowned T-SQL expert Itzik Ben-Gan introduces breakthrough techniques for using them to handle many common T-SQL querying tasks with unprecedented elegance and power. Using extensive code examples, he guides you through window aggregate, ranking, distribution, offset, and ordered set functions. You’ll find a detailed section on optimization, plus an extensive collection of business solutions — including novel techniques available in no other book. Microsoft MVP Itzik Ben-Gan shows how to: • Use window functions to improve queries you previously built with predicates • Master essential SQL windowing concepts, and efficiently design window functions • Effectively utilize partitioning, ordering, and framing • Gain practical in-depth insight into window aggregate, ranking, offset, and statistical functions • Understand how the SQL standard supports ordered set functions, and find working solutions for functions not yet available in the language • Preview advanced Row Pattern Recognition (RPR) data analysis techniques • Optimize window functions in SQL Server and Azure SQL Database, making the most of indexing, parallelism, and more • Discover a full library of window function solutions for common business problems About This Book • For developers, DBAs, data analysts, data scientists, BI professionals, and power users familiar with T-SQL queries • Addresses any edition of the SQL Server 2019 database engine or later, as well as Azure SQL Database Get all code samples at: MicrosoftPressStore.com/TSQLWindowFunctions/downloads

Site Reliability Engineering
Site Reliability Engineering

Author: Niall Richard Murphy

Publisher: "O'Reilly Media, Inc."

Published: 2016-03-23

Total Pages: 552

ISBN-13: 1491951176

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The overwhelming majority of a software system’s lifespan is spent in use, not in design or implementation. So, why does conventional wisdom insist that software engineers focus primarily on the design and development of large-scale computing systems? In this collection of essays and articles, key members of Google’s Site Reliability Team explain how and why their commitment to the entire lifecycle has enabled the company to successfully build, deploy, monitor, and maintain some of the largest software systems in the world. You’ll learn the principles and practices that enable Google engineers to make systems more scalable, reliable, and efficient—lessons directly applicable to your organization. This book is divided into four sections: Introduction—Learn what site reliability engineering is and why it differs from conventional IT industry practices Principles—Examine the patterns, behaviors, and areas of concern that influence the work of a site reliability engineer (SRE) Practices—Understand the theory and practice of an SRE’s day-to-day work: building and operating large distributed computing systems Management—Explore Google's best practices for training, communication, and meetings that your organization can use

Kubernetes Patterns
Kubernetes Patterns

Author: Bilgin Ibryam

Publisher: O'Reilly Media

Published: 2019-04-09

Total Pages: 267

ISBN-13: 1492050253

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The way developers design, build, and run software has changed significantly with the evolution of microservices and containers. These modern architectures use new primitives that require a different set of practices than most developers, tech leads, and architects are accustomed to. With this focused guide, Bilgin Ibryam and Roland Huß from Red Hat provide common reusable elements, patterns, principles, and practices for designing and implementing cloud-native applications on Kubernetes. Each pattern includes a description of the problem and a proposed solution with Kubernetes specifics. Many patterns are also backed by concrete code examples. This book is ideal for developers already familiar with basic Kubernetes concepts who want to learn common cloud native patterns. You’ll learn about the following pattern categories: Foundational patterns cover the core principles and practices for building container-based cloud-native applications. Behavioral patterns explore finer-grained concepts for managing various types of container and platform interactions. Structural patterns help you organize containers within a pod, the atom of the Kubernetes platform. Configuration patterns provide insight into how application configurations can be handled in Kubernetes. Advanced patterns covers more advanced topics such as extending the platform with operators.

Working Effectively with Legacy Code
Working Effectively with Legacy Code

Author: Michael Feathers

Publisher: Prentice Hall Professional

Published: 2004-09-22

Total Pages: 457

ISBN-13: 0132931753

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Get more out of your legacy systems: more performance, functionality, reliability, and manageability Is your code easy to change? Can you get nearly instantaneous feedback when you do change it? Do you understand it? If the answer to any of these questions is no, you have legacy code, and it is draining time and money away from your development efforts. In this book, Michael Feathers offers start-to-finish strategies for working more effectively with large, untested legacy code bases. This book draws on material Michael created for his renowned Object Mentor seminars: techniques Michael has used in mentoring to help hundreds of developers, technical managers, and testers bring their legacy systems under control. The topics covered include Understanding the mechanics of software change: adding features, fixing bugs, improving design, optimizing performance Getting legacy code into a test harness Writing tests that protect you against introducing new problems Techniques that can be used with any language or platform—with examples in Java, C++, C, and C# Accurately identifying where code changes need to be made Coping with legacy systems that aren't object-oriented Handling applications that don't seem to have any structure This book also includes a catalog of twenty-four dependency-breaking techniques that help you work with program elements in isolation and make safer changes.

Windows 2000 Active Directory
Windows 2000 Active Directory

Author: Edgar Brovick

Publisher: Sams Publishing

Published: 2000

Total Pages: 422

ISBN-13: 9780735708709

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Annotation Windows 2000 is one of most anticipated software releases in history and is a realization of a vision for desktop computing that Microsoft has been articulating for the past six years. The keystone and most eagerly anticipated new feature in the new administrative power inherent in the Windows 2000 Active Directory (AD). Windows 2000 Active Directory will provide the ideal foundation for achieving synergy between information about users, network infrastructure elements, and applications. Active Directory will provide the means to manage the entire network infrastructure from a single application. Active Directory will be a huge stumbling block for most administrators who need to get Windows 2000 up and running. Windows 2000 Active Directory will offer hands-on insight into the workings of the new and complex world of Active Directory. Through the use of case studies, troubleshooting tips, check lists, mitigation recommendations, and technological explanations, the reader will receive the expert advice of experienced authors and beta testers.