ITC Infotech Devops Engineer Interview Questions and Answers

Q1. They asked me to write a dockerfile
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Q2. Minimal questions about linux
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Q1. What is vault & how it is integrated with your AWS
Ans. 
Vault is a tool for managing secrets and protecting sensitive data.
• Vault securely stores and manages sensitive information such as API keys, passwords, and certificates.

• It provides a centralized place for managing access control and encryption of data.

• Vault can be integrated with AWS to securely store and retrieve AWS credentials and other sensitive information.

• Integration with AWS allows for automated provisioning and...read more
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Q1. Explain kubernetes architecture
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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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Q2. Types of instances in AWS
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Types of instances in AWS include On-Demand Instances, Reserved Instances, and Spot Instances.
• On-Demand Instances: Pay for compute capacity by the hour or second with no long-term commitments.

• Reserved Instances: Reserve capacity for 1 or 3 years in exchange for a significant discount.

• Spot Instances: Bid on unused EC2 capacity and potentially save up to 90% compared to On-Demand prices.
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Q1. What is the challenges you have faced in kubernetes
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Challenges faced in Kubernetes include networking issues, resource management, and complexity of configurations.
• Networking issues can arise due to misconfigurations or conflicts between pods

• Resource management challenges include optimizing resource allocation and scaling

• Complexity of configurations can lead to difficulties in troubleshooting and maintaining the cluster
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Q2. What is the cicd pipeline you have troubleshoot
Ans. 
I have troubleshooted a CI/CD pipeline for a microservices architecture using Jenkins and Docker.
• Identified and resolved issues with Jenkins plugins causing build failures

• Optimized Docker images to reduce build times and improve deployment speed

• Debugged pipeline scripts to ensure proper integration and testing of microservices
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Q1. Kubernetes architecture
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Q2. CICD pipeline in jenkins
Ans. 
CICD pipeline in Jenkins automates the process of building, testing, and deploying code.
• Jenkins is a popular automation server used for CICD pipelines

• CICD pipeline in Jenkins typically involves stages like build, test, deploy

• Jenkins plugins can be used to integrate with various tools for automation

• Pipeline scripts in Jenkins can be written in Groovy language
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Q1. Questions on Docker
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Aptitude was mix of questions from logical reasoning, english grammar to simple numerical problems.

Q1. Questions were regarding projects done.
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