IBM Infrastructure Specialist Interview Questions and Answers

Modules in Terraform are reusable components that allow you to encapsulate and organize your infrastructure code.

• Modules help in breaking down complex infrastructure into smaller, manageable components

• They promote reusability and maintainability of code

• Modules can be shared and used across different projects

• Example: Creating a module for provisioning a virtual machine in Azure

Use variables or data sources in Terraform to dynamically manage AMI IDs without hard coding.

• Define a variable for the AMI ID in your Terraform configuration: `variable "ami_id" {}`.

• Use a data source to fetch the latest AMI ID dynamically: `data "aws_ami" "latest" {}`.

• Reference the variable or data source in your resource block: `ami = var.ami_id` or `ami = data.aws_ami.latest.id`.

• Utilize Terraform workspaces or enviro...read more

Use encrypted variables, limit access to credentials, and utilize secure storage solutions.

• Encrypt sensitive variables using tools like Vault or AWS KMS

• Limit access to credentials by using least privilege principles

• Store credentials securely in a password manager or key vault

• Avoid hardcoding credentials in Terraform configuration files

VPC is a virtual private cloud that allows you to create isolated networks, NAT Gateway enables instances in a private subnet to connect to the internet, NACL controls inbound and outbound traffic at the subnet level, SG controls traffic at the instance level.

• VPC is a virtual network in the cloud that you can define and customize, providing a secure environment for your resources.

• NAT Gateway allows instances in a priva...read more

A Dockerfile is a text document that contains all the commands a user could call on the command line to assemble an image.

• Start with a base image

• Use the FROM keyword to specify the base image

• Add any necessary dependencies using the RUN keyword

• Copy application code into the image using the COPY keyword

• Expose any necessary ports using the EXPOSE keyword

• Specify the command to run when the container starts using the CMD ke...read more

CICD stages include build, test, deploy, and monitor. Common issues include integration challenges and pipeline failures.

• Stages: Build, Test, Deploy, Monitor

• Issues: Integration challenges, Pipeline failures

• Example: Integration challenges with third-party tools delaying deployment

To check if a pod in ReplicaSet went down or failed, monitor the pod status, logs, and events.

• Monitor the pod status using kubectl get pods command

• Check the pod logs for any error messages using kubectl logs command

• Review the events related to the pod using kubectl describe pod command

• Set up alerts or notifications for pod failures using monitoring tools like Prometheus or Grafana

Experienced Infrastructure Specialist with a strong background in network management, cloud solutions, and system optimization.

• Over 7 years of experience in IT infrastructure management, focusing on network security and performance optimization.

• Led a project to migrate on-premises servers to AWS, resulting in a 30% reduction in operational costs.

• Skilled in implementing virtualization technologies, such as VMware and Hy...read more

Yes, I am capable of working in various roles such as DevOps, Cloud, and Development.

• I have experience and skills in DevOps practices such as automation, CI/CD, and infrastructure as code.

• I am proficient in cloud technologies like AWS, Azure, or Google Cloud Platform.

• I have a strong background in software development with expertise in languages like Python, Java, or JavaScript.

Yes, I have experience with both Cloud services and Linux/Windows operating systems.

• Experience with AWS, Azure, or Google Cloud Platform

• Proficient in Linux distributions such as Ubuntu, CentOS, or Red Hat

• Familiar with Windows Server operating systems

• Knowledge of virtualization technologies like VMware or Hyper-V