Parsons International Infrastructure Inspector Interview Questions and Answers for Experienced

Q1. Tell about sdwan
Ans. 
SD-WAN stands for Software-Defined Wide Area Network, a technology that simplifies the management and operation of a WAN by decoupling the networking hardware from its control mechanism.
• SD-WAN uses software to dynamically route traffic across the network based on real-time data and policies.

• It improves network performance, reduces costs, and enhances security by utilizing multiple connection types such as MPLS, broadba...read more
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Q2. And architecture
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Q1. Tell me about your self
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Q1. Explain hybrid model
Ans. 
Hybrid model combines on-premises infrastructure with cloud services for flexibility and scalability.
• Combines on-premises infrastructure with cloud services

• Allows for flexibility and scalability

• Can help optimize costs by utilizing both on-premises and cloud resources as needed
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Q2. Explain forest in enterprise environment
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A forest in an enterprise environment refers to a collection of Active Directory domains that share a common schema and global catalog.
• A forest is made up of one or more domains that are interconnected in a trust relationship.

• It allows for centralized management of users, groups, and resources across multiple domains.

• Each domain within a forest has its own domain controllers but shares a common schema and global catalo...read more
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Q1. Reason for leaving previous organisation
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Q2. Places where you faced challenges and how you dealt with them
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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
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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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Q1. What is OOPS and it's pillar ?
Ans. 
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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About ypurself and gave topics to discuss

Basics math problems and grammer

Q1. About yourself background check
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Q2. Expected salary and willing to relocate
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Q1. How Workload Identity Federation works in GCP
Ans. 
Workload Identity Federation in GCP allows workloads running on GCP to authenticate using external identity providers.
• Workload Identity Federation enables workloads to use external identity providers like Active Directory or LDAP for authentication.

• It allows workloads to obtain short-lived credentials from GCP's Security Token Service (STS) using their external identity provider's credentials.

• This helps in centralizing...read more
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Q1. Where you look yourself after 5 years
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Q1. I interviewed for Meraki projects...so all questions where meraki related
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Q1. What are your salary expectations?
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Q2. It was salary negotiation rounds.
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Q1. Tell me about yourself:Keep it short and put your personal strength as I am passionate about customer service
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