Dynamisch IT Devops Engineer Interview Questions, Process, and Tips

Q1. How to check kubernetes resources
Ans. 
To check kubernetes resources, use kubectl command-line tool.
• Use 'kubectl get' command to list resources

• Use 'kubectl describe' command to get detailed information about a resource

• Use 'kubectl logs' command to view logs of a container

• Use 'kubectl exec' command to execute a command in a container

• Use 'kubectl apply' command to apply changes to a resource

• Use 'kubectl delete' command to delete a resource
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Q1. What is the current CTC
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Q1. Tell me about yourself
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Q2. About your company and project
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Q1. Explain 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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Q2. Types of instances in AWS
Ans. 
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. Explain CI/CD pipeline .
Ans. 
CI/CD pipeline is a set of automated processes that allow developers to continuously integrate code changes and deploy them to production.
• Continuous Integration (CI) involves automatically building and testing code changes as they are committed to a shared repository.

• Continuous Deployment (CD) involves automatically deploying code changes to production environments after passing automated tests.

• CI/CD pipelines typicall...read more
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Q2. Explain daemonset in kubernetes.
Ans. 
DaemonSet ensures that all or some nodes run a copy of a Pod
• DaemonSet is a Kubernetes resource that ensures a copy of a Pod is running on all or some nodes in the cluster

• It is useful for running a single instance of a Pod on every node, such as log collection or monitoring agents

• DaemonSet automatically adds or removes Pods as nodes are added or removed from the cluster
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Q1. Explain the networking services in AWS.
Ans. 
AWS provides a variety of networking services to help users manage their network infrastructure.
• Virtual Private Cloud (VPC) allows users to create isolated networks within the AWS cloud

• Elastic Load Balancing distributes incoming traffic across multiple instances to ensure high availability

• Route 53 is a scalable domain name system (DNS) web service

• Direct Connect allows users to establish a dedicated network connection b...read more
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Q2. What is terraform module?
Ans. 
Terraform module is a reusable, configurable, and self-contained collection of Terraform resources.
• Terraform modules help organize and reuse code for infrastructure components

• Modules can be shared and reused across different projects

• Modules can have input variables to customize their behavior

• Modules can output values that can be used by other parts of the infrastructure code
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Q1. Why GitOps tool ?
Ans. 
GitOps tools help automate infrastructure management, version control, and deployment processes.
• Enables infrastructure as code practices

• Facilitates version control for infrastructure configurations

• Automates deployment processes

• Promotes collaboration and visibility among team members

• Examples: Argo CD, Flux, Jenkins X
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Q2. What is AWS secret manager?
Ans. 
AWS Secret Manager is a service that helps you protect access to your applications, services, and IT resources.
• It allows you to securely store, manage, and retrieve sensitive credentials and configuration data.

• You can rotate, manage, and retrieve secrets throughout their lifecycle.

• Integrates with AWS services like Lambda, EC2, RDS, and more for secure access to secrets.

• Helps you meet security and compliance requirement...read more
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Q1. S3 storage class
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Do basic aptitude and one coding question.

Q1. Be patient. You'll definately crack if your basic of programming and oops are clear.
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Q2. Questions specific to my final year project and code review.
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