Linux Kuriosity

  1. What is Hadoop ? Ans: Hadoop is the framework to process and analyze Big Data. Hadoop’s popularity speaks for itself. A  huge volume  of data is considered as Big Data. Apache Hadoop was born out as a  solution to Big Data. Hadoop was created by  Doug Cutting  and  Mike Cafarella. Apache Hadoop software library is a  framework  that  allows for the distributed processing of large data sets across clusters of computers using simple programming model. 2. What is Big data ? Ans: Big data is a  collection of data sets so large and complex that your legacy IT systems cannot handle them. Now, the question arises what is considered as huge? Many terabytes, petabytes, exabytes of data. Now, the other question is how we can decide the data is Big Data or not? How can we say the problem needs a Big Data solution or not? If the problem satisfies the three factors. The four factors are...

  1. What is SVN ? Ans: It is a software versioning and revision control system distributed under an open source license. 2. Who created SVN? Ans: CollabNet Inc in 2000 3. What is Version control System ? Ans: It is a software that helps software developers to work together and maintain a complete history of their work. 4. What are the two categories of the VCS ? Ans: There are two categories of the VCS 1. Centralized Version control system 2. Decentralized Version control system 5. What is repository ? Ans: A repository is the heart of any version control system.It is the central place where developers store all their work. Note: For Devops Interview Please go through below books: URL:  https://www.amazon.com/dp/B07LBMCPNY URL:  https://www.amazon.com/dp/B07KPFDJMV

  1. What are Containers ? Ans: Containers are multiple isolated services  that are run on a single control host (underlying infrastructure) and they access a single kernel. 2. What is Container based Virtualization ? Ans: Container based virtualization is an OS-level virtualization  method for deploying and running distributed applications without launching an entire VM for each application. They  isolate applications  from one another. 3. What are the Advantages of Containers ? Advantages of Containers Improved portability Better performance Optimum RAM/disk space/cloud utilization Suited for agile environment 4. What is ACS ? Ans: Microsoft provides containers as a service, which accelerates containerized application development. This is called as  Azure Container Service (ACS) . Azure Container Service (ACS) helps in  managing, deploying and orchestrating  the containers. Curren...

  1. What is system ? Ans: A system is an arrangement in which all its unit assemble work together according to a set of rules. It can also be defined as a way of working, organizing or doing one or many tasks according to a fixed plan. 2. What are the three components of the embedded system ? Ans: An embedded system has three components − It has hardware. It has application software. It has Real Time Operating system (RTOS) that supervises the application software and provide mechanism to let the processor run a process as per scheduling by following a plan to control the latencies. 3. What are the characteristics of an embedded System ? Ans: Characteristics of an Embedded System Single-functioned  − An embedded system usually performs a specialized operation and does the same repeatedly. For example: A pager always functions as a pager. Tightly constrained  − All computing systems have constraints on design metrics, bu...

  1. What is Spark SQL ? Ans: Spark SQL  is a component of the Spark ecosystem and is used to access  structured  and  semi-structured  information. It is used for relational big data processing in integration with Scala, Python, Java, etc. It also provides the SQL query execution support to Spark. The process of querying data can be done on data stored in internal Spark RDDs and other external data sources. 2. What are the two types of data in Big Data ? Ans: Data in Big Data can be classified as:  Structured ,  Semi-structured   and  Unstructured data .  3. What is RDD ? Ans: RDD is  Resilient Distributed Datasets . It is an immutable, cacheable, distributed set of data. It is the primary distributed Dataset abstraction in Spark. 4. What is Spark SQL ? Ans: Spark SQL is the solution for data analysis from the Spark family of tool sets. It runs SQL on top of Spark. Spark SQL can...

  1. What is Jenkins ? Ans: It is a free source that can handle any kind of build or continuous integration. Jenkins is a popular tool for performing continuous integration of software projects. 2. Jenkins will be installed on server or clients ? Ans: It will be installed on server where the central build will take place. 3. What is continous integration ? Ans: It is a development practice that requires users to integrate code into a shared repository at regular intervals. 4. How to restart the jenkins from the browser ? Ans: http://localhost:8080/jenkins/restart 5. What is # of executors ? Ans: Refers to the total number of concurrent job executions that can take place on the jenkins machine. Note: Below are the books conatin all kind of Jenkins Interview QA  https://www.amazon.com/dp/B07LBMCPNY https://www.amazon.com/dp/B07KCHYQ8K

1. What is Amazon S3 ? Ans: Amazon simple storage service is storage for the internet. 2. What is the use of the Amazon S3 ? Ans: We can use Amazon S3 to store and retrieve any amount of data at any time from anywhere on the web. 3. In which form Amazon S3 stores the data ? Ans: Objects 4. What is Objects ? Ans: An object consist of a file and optionally any metadata that describes that file. 5. __________ are the containers for objects. Ans: Buckets 6. For each bucket we can control access to it. True or False. Ans: True For complete python and shell scripting guide please click on below link: https://payhip.com/b/247HD