Infogain Senior Devops Engineer Interview Questions, Process, and Tips

Q1. Architecture of Kubernetes?
Ans. 
Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications.
• Kubernetes follows a master-slave architecture with a master node that controls 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).

• Ku...read more
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Q2. Scenario based Questions
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Q1. About DevOps & roles and responsibilities
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Q2. Intro about yourself
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There was an aptitude test with math, English and logical reasoning problems.

A brief round of coding test based on language of your choice.

Q1. Managerial discussion
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Q2. Regarding previous experience
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Q3. Scenario based fitment questions
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Q4. Behavioral questions
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Q1. This was a weird one, conducted over a 2 minute call on phone
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Q1. No proper questions
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Q2. They trick you if you now answers
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Q3. What is java and help me understand your project worked on Maven tool
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Q4. What are the challenges you havefaced in your previous project
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Q5. Spme Troubleshooting scenarios on CI CD part
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Q1. How to ensure high available of eks cluster.
Ans. 
To ensure high availability of EKS cluster, utilize multiple availability zones, implement auto-scaling, use managed node groups, and set up monitoring and alerts.
• Utilize multiple availability zones to distribute workload and ensure redundancy.

• Implement auto-scaling to automatically adjust resources based on demand.

• Use managed node groups to simplify node management and ensure high availability.

• Set up monitoring and al...read more
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Q2. What are liveness and readiness probe
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Liveness and readiness probes are used in Kubernetes to check the health of containers.
• Liveness probe checks if a container is running and healthy. If it fails, Kubernetes restarts the container.

• Readiness probe checks if a container is ready to serve traffic. If it fails, Kubernetes stops sending traffic to the container.

• Probes are configured in the pod's YAML file using the 'livenessProbe' and 'readinessProbe' fields.

• ...read more
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Q1. Oops concept , Concepts on Strings and Arrays , Concepts on Data Structures etc
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Q1. What is docker, what is DevOps
Ans. 
Docker is a containerization platform that allows applications to be packaged and run in isolated environments. DevOps is a software development methodology that focuses on collaboration, automation, and integration between development and operations teams.
• Docker is a tool designed to make it easier to create, deploy, and run applications by using containers.

• Containers allow a developer to package up an application wit...read more
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Q2. Difference between git and sub git
Ans. 
Git is a version control system used for tracking changes in source code, while Subversion (SVN) is another version control system with similar features.
• Git is distributed, allowing for offline work and faster branching and merging.

• Subversion is centralized, requiring a network connection for most operations.

• Git uses a staging area for changes before committing, while Subversion commits changes directly to the reposito...read more
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Q1. What is Devops and how do you use
Ans. 
DevOps is a software development methodology that combines software development (Dev) with IT operations (Ops) to improve collaboration and efficiency.
• DevOps focuses on automating and streamlining the software development process.

• It involves continuous integration, continuous delivery, and continuous deployment.

• DevOps aims to shorten the system development life cycle and provide continuous delivery of high-quality soft...read more
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Q2. Explain k8s in your infratsru
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K8s, short for Kubernetes, is a popular open-source container orchestration platform used for automating deployment, scaling, and management of containerized applications.
• Kubernetes automates the deployment, scaling, and management of containerized applications.

• It provides features like self-healing, load balancing, and rolling updates.

• Kubernetes uses declarative configuration files to define the desired state of the a...read more
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