Top 50 Docker Interview Questions and Answers PDF Download
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Author: Knowledge Powerhouse
Publisher:
ISBN: 9781520212500
Category :
Languages : en
Pages : 43
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Book Description
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?
Author: Knowledge Powerhouse
Publisher:
ISBN: 9781520212500
Category :
Languages : en
Pages : 43
Get Book Here
Book Description
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?
Author: Arulkumaran Kumaraswamipillai
Publisher:
ISBN: 9781411668249
Category : Computers
Languages : en
Pages : 356
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Book Description
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
Author: Emily Robinson
Publisher: Manning
ISBN: 1617296244
Category : Computers
Languages : en
Pages : 352
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Book Description
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
Author: Jeeva S. Chelladhurai
Publisher: Packt Publishing Ltd
ISBN: 178646201X
Category : Computers
Languages : en
Pages : 289
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Book Description
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.
Author: Scott Sauls
Publisher: Tyndale House Publishers, Inc.
ISBN: 1496403835
Category : Religion
Languages : en
Pages : 289
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Book Description
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.
Author: Itzik Ben-Gan
Publisher: Microsoft Press
ISBN: 0135861624
Category : Computers
Languages : en
Pages : 716
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Book Description
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
Author: Matt Perman
Publisher: Zondervan
ISBN: 0310494230
Category : Religion
Languages : en
Pages : 375
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Book Description
By anchoring your understanding of productivity in God's plan, What's Best Next gives you a practical approach for increasing your effectiveness in everything you do. There are a lot of myths about productivity--what it means to get things done and how to accomplish work that really matters. In our current era of innovation and information overload, it may feel harder than ever to understand the meaning of work or to have a sense of vocation or calling. So how do you get more of the right things done without confusing mere activity for actual productivity? Matt Perman has spent his career helping people learn how to do work in a gospel-centered and effective way. What's Best Next explains his approach to unlocking productivity and fulfillment in work by showing how faith relates to work, even in our everyday grind. What's Best Next is packed with biblical and theological insight and practical counsel that you can put into practice today, such as: How to create a mission statement for your life that's actually practicable. How to delegate to people in a way that really empowers them. How to overcome time killers like procrastination, interruptions, and multitasking by turning them around and making them work for you. How to process workflow efficiently and get your email inbox to zero every day. How to have peace of mind without needing to have everything under control. How generosity is actually the key to unlocking productivity. This expanded edition includes: a new chapter on productivity in a fallen world a new appendix on being more productive with work that requires creative thinking. Productivity isn't just about getting more things done. It's about getting the right things done--the things that count, make a difference, and move the world forward. You can learn how to do work that matters and how to do it well.
Author: Niall Richard Murphy
Publisher: "O'Reilly Media, Inc."
ISBN: 1491951176
Category :
Languages : en
Pages : 552
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Book Description
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
Author: Elton Stoneman
Publisher: Packt Publishing Ltd
ISBN: 1785288423
Category : Computers
Languages : en
Pages : 352
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Book Description
Learn how to run new and old Windows applications in Docker containers. About This Book Package traditional .NET Frameworks apps and new .NET Core apps as Docker images, and run them in containers for increased efficiency, portability, and security Design and implement distributed applications that run across connected containers, using enterprise-grade open source software from public Docker images Build a full Continuous Deployment pipeline for a .NET Framework application, and deploy it to a highly-available Docker swarm running in the cloud Who This Book Is For If you want to modernize an old monolithic application without rewriting it, smooth the deployment to production, or move to DevOps or the cloud, then Docker is the enabler for you. This book gives you a solid grounding in Docker so you can confidently approach all of these scenarios. What You Will Learn Comprehend key Docker concepts: images, containers, registries, and swarms Run Docker on Windows 10, Windows Server 2016, and in the cloud Deploy and monitor distributed solutions across multiple Docker containers Run containers with high availability and fail-over with Docker Swarm Master security in-depth with the Docker platform, making your apps more secure Build a Continuous Deployment pipeline by running Jenkins in Docker Debug applications running in Docker containers using Visual Studio Plan the adoption of Docker in your own organization In Detail Docker is a platform for running server applications in lightweight units called containers. You can run Docker on Windows Server 2016 and Windows 10, and run your existing apps in containers to get significant improvements in efficiency, security, and portability. This book teaches you all you need to know about Docker on Windows, from 101 to deploying highly-available workloads in production. This book takes you on a Docker journey, starting with the key concepts and simple examples of how to run .NET Framework and .NET Core apps in Windows Docker containers. Then it moves on to more complex examples—using Docker to modernize the architecture and development of traditional ASP.NET and SQL Server apps. The examples show you how to break up monoliths into distributed apps and deploy them to a clustered environment in the cloud, using the exact same artifacts you use to run them locally. To help you move confidently to production, it then explains Docker security, and the management and support options. The book finishes with guidance on getting started with Docker in your own projects, together with some real-world case studies for Docker implementations, from small-scale on-premises apps to very large-scale apps running on Azure. Style and approach Using a step-by-step approach, this book shows you how to use Docker on Windows. It includes practical examples and real-world technical and business scenarios that will help you effectively implement Docker in your environment.There are over 50 examples of Dockerized applications, using C# .NET projects as the source and packaging them into Docker images.
Author: Edgar Brovick
Publisher: Sams Publishing
ISBN: 9780735708709
Category : Computers
Languages : en
Pages : 422
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Book Description
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.
