Al Arkkan Training Center IT Infrastructure Lead Interview Questions and Answers for Experienced

Q1. Tell me about your project, how did you work and what were the tools used?
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Q2. What are modules in Terraform, share your screen and write module
Ans. 
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
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Q3. If you want to avoid hard coding the AMI Ids while creating an instance, how would you do that through Terraform?
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Q4. Questions on lifecycle block, data block, modules and resources in Terraform - scenario based just like one above
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Q5. How would you provide security to your credentials while using Terraform
Ans. 
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
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Q6. Explain VPC, NAT Gateway, difference between NACL and SG
Ans. 
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
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Q7. Write a Docker File
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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
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Q8. S3 Lifecycle rules
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Q9. If you are using CICD define your stages and issues you faced
Ans. 
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
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Q10. How will you check if a pod in ReplicaSet went down or failed and what was the reason for the same?
Ans. 
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
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Q1. Tell me about yourself
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Q2. Why do you like learning new things
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Q3. Agile methodology, Scrum
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Q4. Day to Day activities
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Q5. Will you be able to work if given any type of work like either DevOps or only Cloud or only Development?
Ans. 
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.
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Good and easy to clear

Q1. Communication test
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Q1. About role and hr questions
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Q1. What is OOPS and it's pillar ?
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OOPS stands for Object-Oriented Programming System. Its pillars are Inheritance, Encapsulation, Abstraction, and Polymorphism.
• Inheritance allows a class to inherit properties and behavior from another class.

• Encapsulation restricts access to certain components within a class, protecting the data.

• Abstraction hides the complex implementation details and only shows the necessary features to the outside world.

• Polymorphism a...read more
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Q1. Patch management
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Q2. Types of patches
Ans. 
Types of patches include security patches, bug fixes, feature updates, and service packs.
• Security patches are released to fix vulnerabilities and protect systems from cyber attacks.

• Bug fixes address issues and errors in software or systems.

• Feature updates introduce new functionalities or improvements.

• Service packs are collections of updates, fixes, and enhancements for a software product.
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Q3. Patch deployment
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Q4. Remote assistance
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Q1. VDI configuration
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Q2. Types of Hypervisiors
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Hypervisors are software that creates and runs virtual machines. Types include Type 1 (bare-metal) and Type 2 (hosted).
• Type 1 hypervisors run directly on the host's hardware, like VMware ESXi and Microsoft Hyper-V

• Type 2 hypervisors run on a conventional operating system, like VMware Workstation and Oracle VirtualBox
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Q3. Incident management
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Q4. Change management
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Q5. Team coordniation
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Q1. Client script & its types
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Client script is a script that runs on the client side of a network connection.
• Client scripts are written in languages like JavaScript, VBScript, or Python.

• Types of client scripts include event-driven scripts, form validation scripts, and AJAX scripts.

• Client scripts are used to enhance user experience, validate input, and interact with server-side scripts.
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Q2. Busniess rule & its type
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A business rule is a statement that defines or constrains some aspect of the business.
• Business rules are used to guide business processes and decisions.

• There are different types of business rules such as structural, action, and validation rules.

• Examples of business rules include 'Customers must be over 18 to purchase alcohol' and 'Employees must submit expense reports within 30 days.'
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