Preview Questions DevOps | Role Specific Skill

Question 1: You are tasked with optimizing the build and deployment process for your containerized applications to reduce lead times and improve developer productivity. What strategies do you employ to achieve this?

Which action should you take?

Choose only one option

Implement a CI/CD pipeline that automates the build, test, and deployment process, triggering builds and deployments on code changes.

Leverage container image caching and layer reuse to speed up build times and reduce storage requirements.

Utilize build tools like Buildah or Kaniko to build container images directly within your Kubernetes cluster, eliminating the need for external registries during development.

Optimize your Dockerfiles and build scripts to minimize image size and build complexity, improving build performance.

Question 2: You are experiencing performance bottlenecks in your containerized application running on Kubernetes. How do you identify and optimize resource utilization to improve application performance?

Which action should you take?

Choose only one option

Use Kubernetes monitoring tools like Prometheus and Grafana to collect and analyze metrics related to CPU, memory, and network usage of containers and pods.

Profile the application code running inside the containers to identify CPU-intensive or memory-hungry operations that might be causing bottlenecks.

Optimize container images by reducing their size, minimizing unnecessary layers, and leveraging efficient base images.

Adjust resource requests and limits for containers and pods to ensure they have access to adequate resources while avoiding over-provisioning.

Question 3: You're considering implementing a new CI/CD practice, like canary deployments or feature flags. How do you proceed?

Which action should you take?

Choose only one option

Research and evaluate different tools and approaches to implement the practice.

Conduct a pilot project to test the feasibility and benefits of the practice.

Create a detailed implementation plan and timeline for rolling out the practice.

Communicate the proposed changes to the team and gather their feedback.

Question 4: You are tasked with containerizing a legacy application that has multiple dependencies and complex configuration files. What is the first step you would take to ensure a smooth containerization process?

Which action should you take?

Choose only one option

Package all dependencies and configuration files within the container image to ensure portability.

Refactor the application to minimize dependencies and simplify configuration management within the container.

Utilize a base image that already includes the necessary dependencies and build the application on top of it.

Break down the monolithic application into smaller, loosely coupled microservices that can be containerized independently.

Question 5: You are tasked with improving the observability and monitoring of your IaC-provisioned infrastructure. How do you ensure that you have the necessary visibility into the health and performance of your infrastructure to proactively identify and address potential issues?

Which action should you take?

Choose only one option

Integrate monitoring and logging solutions into your IaC templates to automatically provision and configure monitoring agents and dashboards for all deployed resources.

Utilize infrastructure monitoring tools to collect and analyze metrics related to resource utilization, performance, and availability, setting up alerts for potential issues.

Leverage distributed tracing and application performance monitoring (APM) tools to gain insights into the behavior and interactions of your applications running on the IaC-provisioned infrastructure.

Implement a centralized logging and visualization platform to aggregate and analyze logs from various infrastructure components and applications, enabling correlation and root cause analysis.

Question 6: A new feature deployment caused a critical production outage. What is your immediate action?

Which action should you take?

Choose only one option

Roll back the deployment to the previous stable version.

Quickly try to identify and fix the issue in production.

Pause all further deployments until the issue is resolved.

Communicate the issue to stakeholders and provide an estimated time for resolution.