Altimetrik Devops Engineer Interview Questions and Answers

Configuration management is crucial in DevOps for consistency, scalability, and automation.

• Ensures consistency across environments

• Facilitates scalability by automating infrastructure changes

• Enables automation of deployment and testing processes

• Helps in tracking changes and maintaining version control

• Examples: Ansible, Chef, Puppet, SaltStack

To make a call from one namespace to another in AKS environment, use the fully qualified domain name (FQDN) of the service.

• Use the FQDN of the service to make a call from one namespace to another in AKS environment

• The FQDN should include the namespace and service name, for example: myservice.mynamespace.svc.cluster.local

• Ensure that the service is exposed within the cluster and has a stable IP address

• Use the appropriate...read more

AKS pods can be divided based on load using horizontal pod autoscaling (HPA) and cluster autoscaler.

• Use HPA to automatically scale the number of replicas of a deployment based on CPU or memory usage.

• Use cluster autoscaler to add or remove nodes from the AKS cluster based on the demand.

• Use resource requests and limits to ensure that pods are scheduled on nodes with sufficient resources.

• Consider using node selectors or a...read more

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

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.