Mind Spark Technologies Associate DevOps Engineer Interview Questions and Answers

Read Replicas in Amazon RDS enhance database performance and scalability by offloading read traffic from the primary database.

• Improves read scalability by distributing read traffic across multiple replicas.

• Reduces load on the primary database, allowing it to handle more write operations.

• Can be used for reporting and analytics, ensuring that heavy read queries do not impact the primary database's performance.

• Supports au...read more

Yes, AWS Lambda can be integrated with Amazon ECR to deploy containerized applications.

• AWS Lambda supports container images, allowing you to package your code and dependencies in a Docker container.

• You can push your container images to Amazon ECR, which serves as a fully managed Docker container registry.

• To deploy a Lambda function using an ECR image, specify the image URI in the Lambda function configuration.

• Example: ...read more

GitHub Actions is a CI/CD tool that automates workflows directly in GitHub repositories.

• Automates software workflows: GitHub Actions allows you to automate tasks like testing, building, and deploying code.

• Event-driven: Workflows can be triggered by GitHub events such as push, pull requests, or issues.

• Customizable workflows: You can define workflows using YAML files, specifying jobs and steps.

• Integration with GitHub: Se...read more

Integrating Kubernetes and Docker with Jenkins enables automated CI/CD workflows for containerized applications.

• 1. Install Jenkins and required plugins: Ensure Jenkins is installed and add plugins like 'Kubernetes' and 'Docker Pipeline'.

• 2. Configure Docker: Set up Docker on the Jenkins server to build and manage container images.

• 3. Set up Kubernetes: Configure a Kubernetes cluster where Jenkins can deploy applications.

• ...read more

Amazon S3 lifecycle manages object storage through automated transitions and deletions based on defined policies.

• Lifecycle policies can transition objects to different storage classes (e.g., S3 Standard to S3 Glacier).

• Objects can be automatically deleted after a specified period (e.g., delete objects after 365 days).

• You can set rules based on object creation date or last modified date.

• Example: Move infrequently accesse...read more

Implemented various cost optimization strategies to enhance efficiency and reduce expenses in cloud infrastructure and operations.

• Utilized auto-scaling features to adjust resources based on demand, reducing costs during low-traffic periods.

• Migrated to serverless architecture for certain applications, which eliminated the need for provisioning and managing servers.

• Conducted regular audits of cloud resource usage, identi...read more

Plugins in Jenkins extend its functionality, allowing integration with various tools and services for CI/CD processes.

• Plugins are modular components that enhance Jenkins capabilities.

• They allow integration with version control systems like Git and SVN.

• Examples include the Git plugin for source code management and the Docker plugin for container management.

• Plugins can be installed from the Jenkins Plugin Manager or manu...read more

Elastic MapReduce (EMR) is a cloud-based big data platform for processing large datasets using frameworks like Hadoop and Spark.

• EMR simplifies running big data frameworks like Apache Hadoop, Apache Spark, and Presto.

• It allows for scalable processing of vast amounts of data across multiple EC2 instances.

• Users can easily spin up clusters, configure them, and terminate them when not needed, optimizing costs.

• EMR integrates...read more