Answer:- Dogpile effect or cache stampede indicates the expiry of cache, followed by the website being simultaneously hit by numerous requests. Semaphore lock helps prevent this effect by generating a new value as the cache expires.

Answer:- DevOps is all about people, culture, and automation. Continuous testing plays a crucial role in DevOps. Scripts are written for software testing and made auto executable so that testing can be automated and frequent releases are possible using the delivery pipelines.

Answer:- Forking Workflow gives Developers the service-side repositories. It supports open-source projects and is often used together with a Git hosting service like Bitbucket.

Answer:- Following are a few useful Jenkins plugins: Amazon EC2 Maven 2 project HTML publisher Join Copy artifact Green Balls

Answer:- Yes, it is possible. Jenkins can be moved or copied from one server to another. When copying Jenkins, it is possible to move the jobs directory from the older server to the new or the current one. This enables moving an installation by copying in the corresponding job directory.

Answer:- Azure DevOps Project is a simplified way to effectively bring existing code and Git repository for the creation of CI and CD pipeline to Azure. Let’s move on to the next section of advanced Azure DevOps Interview Questions for experienced professionals.

Answer:- This is one of the trickier Azure DevOps interview questions. Azure DevOps Services is the cloud service of Microsoft Azure and it offers a highly scalable and reliable hosted service that is globally available. DevOps Server, on the other hand, is an on-premise offering that is on a SQL Server back end. Enterprises go for the on-premise offering when they want their day within their network or when there is a requirement for accessing SQL Server reporting services that are integrated with Azure DevOps data and tools.

Answer:- Multiple tools and technologies can be leveraged with Azure to design solution architectures for the below DevOps scenarios: CI/CD for Azure VMs CI/CD for Azure Web Apps CI/CD for containers DevTest image factory Using Azure Web Apps and Jenkins for Java CI/CD Using Jenkins and Terraform on Azure Virtual Architecture for immutable infrastructure CI/CD Using Jenkins and Kubernetes on Azure Kubernetes Service for Container CI/CD

Answer:- Make sure to go through this question as it is one of the important interview questions. Implementing CI and CD pipelines ensures quality and reliable code. Azure pipelines are there to ensure a secure, easy, and quick way to automate processes for project development as well as their availability. They are completely free for use in public projects and cost-effective for private ones (free 30 hours per month). Below are a few reasons for using CI/CD and Azure pipelines: • Supports any platform or language • Enables work with open-source project> • Building on Windows, Mac, and Linux machines • Enables simultaneous deployment to various types of a target • Integration with GitHub and Azure deployments

Answer:- The answer is the introduction of a new feed for the package. Packages that are hosted in Azure Artifacts, find storage in a feed. Sharing packages with higher scalability and according to requirements can be ensured by setting up permissions on the feed. These multiple feeds enable control of access to packages across four levels. These four levels of access are: • Owners • Readers • Contributors • Collaborators

Answer:- For such an application, the isolation of members of different project teams into different communication channels is the first criterion. Additionally, maintaining communication history in the concerned channels is necessary. Effective integration with Azure DevOps is also important for the application and allows one to add external suppliers and contractors to projects. The Microsoft teams have addressed these requirements through their offering of the right capabilities. Classifying teams allows the creation of different channels by users for the organization of communications according to the topic. Every channel can include a few to thousands of users. Microsoft Teams provides a guest access feature that allows the invitation of external people to join internal channels for the purpose of meetings, file sharing, and messaging. It helps in B2B project management and can also directly integrate with Azure DevOps.

Answer:- The appropriate option, in this case, is Application Map in Azure Application Insights. This is because it helps in identifying the performance bottlenecks as well as the failure hotspots in different components of the multi-tier applications. Application components and the related dependencies are represented by the nodes on the map. Furthermore, it is also capable of providing the status for health KPI and alerts.

Answer:- Selecting “Run PMD” in a Maven build task will do the trick. PMD is a source code analyzer that is capable of identifying common programming errors like unnecessary object creation, unused variables, and empty code blocks. An Apache Maven PMD Plugin will automatically run the tool on a project’s source code and the detailed code error results are provided on the site report.

Answer:- The integration of Azure DevOps and Bitbuckets requires a self-hosted agent and an external Git service connection. Since GitLab CI/CD is compatible with GitHub and Bitbucket. Instead of moving an entire project to GitLab, it is possible to connect the external repository. One can make use of GitLab CI/CD in this manner.