AiVONIC Technology Cloud Devops Engineer Interview Questions and Answers

Q1. What blue green deployment?
Ans. 
Blue green deployment is a software release strategy that reduces downtime and risk by running two identical production environments.
• In blue green deployment, one environment (blue) is currently live and serving production traffic, while the other environment (green) is idle.

• The new version of the software is deployed to the idle environment (green) and tested thoroughly.

• Once the new version is deemed stable, traffic i...read more
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Q2. What is kubeadm?
Ans. 
kubeadm is a tool used to bootstrap Kubernetes clusters.
• kubeadm helps in setting up a minimum viable Kubernetes cluster.

• It automates the process of configuring the cluster's control plane.

• It is part of the Kubernetes project and is used for cluster initialization.

• kubeadm simplifies the process of creating a Kubernetes cluster by handling complex tasks like TLS certificate generation.
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Self introduction and questions

Coding knowledge and my preparation

Q1. Tell me about kubernetes architecture
Ans. 
Kubernetes architecture is a container orchestration platform that manages containerized applications across a cluster of nodes.
• Kubernetes follows a master-slave architecture with a master node and multiple worker nodes.

• Master node components include API server, scheduler, controller manager, and etcd.

• Worker node components include kubelet, kube-proxy, and container runtime (e.g. Docker).

• Pods are the smallest deployabl...read more
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Q1. What is your roles and responsibilities in your current job..?
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Q2. What is CICD...? What is functions used in jenkinsfile..?
Ans. 
CICD stands for Continuous Integration/Continuous Deployment. Jenkinsfile functions include stages, steps, post, and more.
• CICD stands for Continuous Integration/Continuous Deployment

• Jenkinsfile functions include stages, steps, post, agent, environment, and more

• Stages define a series of tasks to be executed in a pipeline

• Steps define individual actions within a stage

• Post defines actions to be taken after the pipeline has...read more
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Q3. What is Kubernetes ..?
Ans. 
Kubernetes is an open-source container orchestration platform for automating deployment, scaling, and management of containerized applications.
• Kubernetes helps in automating the deployment, scaling, and management of containerized applications.

• It allows for easy scaling of applications by adding or removing containers based on demand.

• Kubernetes provides features like service discovery, load balancing, and self-healing ...read more
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Q4. What is Workspaces in docker
Ans. 
Workspaces in Docker are isolated environments where developers can work on different projects without affecting each other.
• Workspaces allow developers to have separate environments for each project, preventing conflicts between dependencies.

• Each workspace has its own set of containers, volumes, and networks, ensuring isolation.

• Developers can easily switch between workspaces to work on different projects.

• Workspaces are...read more
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Q5. How Cost Optimization achieved ..? Give a example where you achieved this.
Ans. 
Cost optimization in DevOps is achieved through efficient resource utilization, automation, and continuous monitoring.
• Implementing auto-scaling to dynamically adjust resources based on demand

• Using containerization to maximize resource utilization and reduce costs

• Leveraging cloud services for pay-as-you-go pricing model

• Implementing cost monitoring tools to identify and eliminate wasteful spending

• Optimizing code and infr...read more
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Q6. What is the challange that you faced in your work and how you can overcome that..?
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Q7. How monitoring has been done .? Explain Prometheus and Grafana.
Ans. 
Monitoring is done using Prometheus and Grafana. Prometheus collects metrics and Grafana visualizes them.
• Prometheus is an open-source monitoring and alerting toolkit

• It collects metrics from monitored targets by scraping HTTP endpoints

• Grafana is a visualization tool that creates dashboards for the collected metrics

• It allows users to create graphs, charts, and alerts based on the data from Prometheus
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Q1. Devops with aws
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Q1. Devops questions
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Case study is quite practical based scenario

Q1. 1.Cannot mention interview question, but I was more on more hands on and production grade scenario.
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Q2. Scalibloty related to question
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Q1. Your day to day work is asked related to technology you are in
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Q2. STAR TECHNIQUE QUESTIONS
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Q3. Coding questions to explain cloud
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Q1. Most of the question will be from your resume
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Q1. Most of the questions are from the cloud and docker,Kubernetes,ci/cd,past working project
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Q1. Normal basic question
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