Infosys AWS Devops Engineer Interview Questions and Answers

Implement security measures in CI/CD pipelines to protect code, dependencies, and environments throughout the development lifecycle.

• Use static code analysis tools (e.g., SonarQube) to identify vulnerabilities in code before deployment.

• Integrate dependency scanning tools (e.g., Snyk, OWASP Dependency-Check) to detect known vulnerabilities in third-party libraries.

• Implement secrets management solutions (e.g., AWS Se...read more

AWS is a comprehensive cloud platform offering scalable computing resources, storage, and services for businesses globally.

• Scalability: AWS allows businesses to scale resources up or down based on demand, such as using EC2 instances for variable workloads.

• Cost-Effectiveness: Pay-as-you-go pricing model helps reduce costs; for example, using S3 for storage only charges for what you use.

• Global Reach: AWS has data ce...read more

Kubernetes is an open-source platform for automating deployment, scaling, and management of containerized applications.

• Orchestration: Kubernetes automates the deployment, scaling, and management of containerized applications, reducing manual effort.

• Scalability: It allows applications to scale up or down seamlessly based on demand, ensuring optimal resource utilization.

• Load Balancing: Kubernetes provides built-in l...read more

Grant access to S3 bucket securely by using IAM policies and roles.

• Create an IAM policy with specific permissions for the S3 bucket

• Attach the IAM policy to an IAM role

• Assign the IAM role to the user or group that needs access

• Use bucket policies for more granular control if needed

IAM role is used to grant permissions to entities, while IAM group is used to group users with similar permissions.

• IAM role is used to delegate permissions to entities like EC2 instances or Lambda functions

• IAM group is used to group users with similar permissions for easier management

• IAM role can be assumed by trusted entities, while IAM group is used for managing user permissions

Ingress controls the external access to services in a cluster, while service defines a set of pods and how they can be accessed.

• Ingress manages external access to services in a cluster

• Service defines a set of pods and how they can be accessed

• Ingress can provide load balancing, SSL termination, and routing based on hostnames or paths

• Service can be of type ClusterIP, NodePort, LoadBalancer, or ExternalName

Pods communicate with other pods through network communication within the same Kubernetes cluster.

• Pods can communicate with each other using services, which provide a stable endpoint for communication.

• Pods can use DNS names to communicate with other pods within the same cluster.

• Pods can also communicate directly using IP addresses within the cluster network.

• Communication between pods can be secured using network p...read more

Kubernetes networking is the way in which different pods and services communicate with each other within a Kubernetes cluster.

• Kubernetes networking allows pods to communicate with each other across nodes in the cluster.

• It uses a flat network model where each pod gets its own IP address.

• Kubernetes networking can be implemented using various plugins like Calico, Flannel, or Cilium.

• Network policies can be defined to ...read more