📖 1. What is Cloud Storage? Cloud Storage refers to the service model where data is stored, managed, and accessed remotely over the internet instead of being stored locally on physical hard drives or servers.It allows users and organizations to save files, databases, media, backups, and application data on highly secure and scalable off-premises infrastructure…
🟥 The Complete Guide to AWS Redshift – Cloud Data Warehousing at Scale As the digital economy expands, the amount of data generated by businesses is growing exponentially. From customer transactions and website clicks to IoT streams and app analytics, organizations are dealing with petabytes of data that need to be organized, stored, and analyzed…
Amazon one of the big name, offering its customers computing infrastructure through Amazon Web Services since 2006. Aims to use its own infrastructure to provide the building blocks for other organizations to use. Such as Elastic Compute Cloud (EC2) is an AWS offering that enables you to spin up virtual servers as you need the…
1) What is DevOps? DevOps is Development and Operation’s Collaboration, it’s a Union of 3Ps – Process, People and Product (working Product) that enable continuous integration and continuous delivery of value to our end users. DevOps accelerate the process to deliver applications and software services at high speed and high velocity. So that organization can…
1. What is Spring Boot? Spring Boot is a framework that makes it easy to create stand-alone, production-grade Spring applications. It provides a number of features that make it easier to develop, run, and deploy Spring applications, including: 2. What are the benefits of using Spring Boot? There are many benefits to using Spring Boot,…
Sure, here are some top 50 Scala interview questions and answers with headings: 1. What is Scala? Scala is a general-purpose programming language that combines object-oriented and functional programming features. It is designed to be concise, expressive, and scalable. Scala is often used for large-scale data processing and machine learning applications. 2. What are the…
1. What is Jenkins? Jenkins is an open-source automation server that helps automate various aspects of software development, such as building, testing, and deploying code. It allows developers to set up continuous integration and continuous delivery (CI/CD) pipelines, streamlining the development and release process. 2. How can I install Jenkins? You can install Jenkins by…
General Questions Element Identification and Interaction Multiple Device Support Native and Hybrid App Automation WebView Automation Testing Framework Integration Gestures and Actions Test Configuration and Management Error Handling and Debugging Performance and Efficiency Handling Dynamic Elements Selendroid Grid and Distributed Testing Cross-Browser Testing Handling Alerts and Pop-ups Upcoming Features and Updates Rajesh KumarI’m a DevOps/SRE/DevSecOps/Cloud…
SRE is one of the trending roles in the tech industry these days, although it is much more than buzz. It is a relatively new practice that can be implemented for improved system management and problem-solving. We may think of this concept as a new way of system administration. In this concept software engineers use…
DataStax Astra DB simplifies cloud-native application development, and reduces time to install, deploy and scale from weeks to minutes. Astra DB eliminates operational overhead, the biggest obstacle to using Apache Cassandra, the open-source NoSQL database behind the largest applications in the world, including Netflix and Instagram. It provides the ability to develop and deploy data-driven…
Couchbase Server, originally known as Membase, is an open-source, distributed (shared-nothing architecture) multi-model NoSQL document-oriented database software package optimized for interactive applications. These applications may serve many concurrent users by creating, storing, and retrieving, aggregating, manipulating and presenting data. In support of these kinds of application needs, Couchbase Server is designed to provide easy-to-scale key-value…
What is Jacoco? JaCoCo is an open-source toolkit for measuring code coverage in a code base and reporting it via visual reports. It is quite popular among a variety of code coverage frameworks. It measures line and branch coverage based on the code covered by the running unit test cases and provides a visual report,…
History & Origin of Junit JUnit was born on a flight from Zurich to Atlanta in 1997 for OOPSLA. Kent Erich was flying with Gamma, and what else were the two geeks doing besides program on a long flight? The first version of JUnit was built there, pair programmed, and tested first (a pleasant form…
History & Origin of Selendroid The Selenium is a collection of different tools and has contributions from different notable people. The long history of the selenium project has different stages with key individuals contributing immensely to the growth at different stages. Selenium was initially developed by Jason Huggins in 2004 while he was working as…
History & Origin of Testlink TestLink was created by Chad Rosen, a software developer for Good Technology in the early 2000s. Rosen came up with the idea of creating a test tracking tool after the development team he worked on had difficulties manually tracking QA test results and which test cases were and were not…
History & Origin of TeamCity TeamCity is a build management and continuous integration server from JetBrains. It was first released on October 2, 2006, and is commercial software and licensed under a proprietary license: a freemium license for up to 100 build configurations and three free Build Agent licenses are available. What is TeamCity? TeamCity…
1) If you were asked to review a colleague’s code that they had written, what key things would you look for? For this question, your interviewer will obviously be looking to hear that you have adequate knowledge when it comes to coding processes. But most importantly, your interviewer will be looking to gauge your ability…
History & Origin of Jenkins The Jenkins project was started in 2004 (originally called Hudson) by Kohsuke Kawaguchi, while he worked for Sun Microsystems. Kohsuke was a developer at Sun and got tired of incurring the wrath of his team every time his code broke the build. Jenkins has an early mover advantage since it…
1) A huge part of our business here at Slack is designing software for iOS. In this role, how would you steer away from retain cycles when using closures in Swift programming language? This question allows your interviewer to assess your technical knowledge and skills in designing apps for iOS products in a very simple…
1) What Is Postfix And Default Port Used For Postfix ? Postfix is a open source MTA (Mail Transfer agent) which is used to route & deliver emails. Postfix is the alternate of extensively used Sendmail MTA. Default port for postfix is 25. 2) What Is The Difference Between Postfix & Sendmail ? Postfix uses…
Clickhouse is an open-source columnar-oriented Database Management System (DBMS) used for online analytical processing (OLAP) created by Yandex. Currently, it powers the second largest web analytics platform, Yandex Metrica. It can also be considered the first open-source SQL data warehouse to ever match the scalability and performance of databases such as Veryica and Snowflake. Thanks…
1) You are not given the tools you need to be successful. How would you change that In Exim? State a business case to your manager / leader as to why you need the tools and make the request for them. 2) What type of people do you not work well with? Be very careful…
1) What is Apache Kafka? Apache Kafka is a publish-subscribe open source message broker application. This messaging application was coded in “Scala”. Basically, this project was started by the Apache software. Kafka’s design pattern is mainly based on the transactional logs design. 2) Enlist the several components in Kafka. The most important elements of Kafka…
Apache Cassandra is an open source non-relational, or NoSQL, a database that enables continuous availability, tremendous scale, and data distribution across multiple data centers and cloud availability zones. It is a highly scalable and available distributed database that facilitates storing and managing high-velocity structured data across multiple commodity servers without a single point of failure….
Nowadays, the age of tech big Data information is continuously increasing in volume and variety. This is the information that companies would like to quickly explore to identify strategic answers to the business. To overcome the problem of traditional database management systems to support large volumes of data arises Google BigQuery platform. This solution runs…
1) What is RabbitMQ? RabbitMQ is an open-source message-broker software is also known as message queueing technology. It defines queues to which applications communicate for data transfer, or message transmission. Any kind of information could be included in a message. This message is processed by the recipient application. 2) When and why to use RabbitMQ?…
1) Is HAProxy a load balancer? HAProxy (High Availability Proxy) is open source proxy and load balancing server software. It provides high availability at the network (TCP) and application (HTTP/S) layers, improving speed and performance by distributing workload across multiple servers. 2)What are the different types of load balancers? Elastic Load Balancing supports the following…
1) What is the ambassador program? An ambassador program is a standardized process companies create to find, recruit, manage, pay, and track brand ambassadors. Having a well-defined process helps companies onboard and work with ambassadors effectively. This way, brands can keep recruiting efficiently without having to plan each time it happens. 2) Which brand ambassador…
1) What is Traefik software? Traefik (pronounced traffic) is a modern HTTP reverse proxy and load balancer that makes deploying microservices easy. Traefik integrates with your existing infrastructure components (Docker, Swarm mode, Kubernetes, Marathon, Consul, Etcd, Rancher, Amazon ECS, …) and configures itself automatically and dynamically. 2) What are use cases of Traefik? The main…
1) Who owns Linkerd? the Cloud Native Computing FoundationLinkerd is hosted by the Cloud Native Computing Foundation (CNCF). The CNCF owns the trademark; the copyright is held by the Linkerd authors themselves. 2) When was Linkerd created? 2016Linkerd is a service mesh that provides critical observability, security, and reliability features to cloud native applications without…