SAP Devops Interview Questions and Answers

Q1. What is ipconf.pl?
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Q2. What is the difference between scan vip & node vip?
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Q1. What is quarantile in Exadata?
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Q2. How to identify the master switch in Exadata?
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Q3. What is spine switch & leaf switch in exadata?
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One of the node of a 3 node cluster is down. Explain the step by step process to troubleshoot the issue.

Shell script & terraform code output was asked.

Array, math, sort, string javascript qutions

Simple coding qution

Q1. Explain our company devops process
Ans. 
Our company's DevOps process focuses on continuous integration, automated testing, and deployment.
• Continuous integration: Developers regularly merge their code changes into a shared repository, triggering automated builds and tests.

• Automated testing: Testing is automated at various stages of the development process to ensure code quality and reliability.

• Deployment automation: Code changes are automatically deployed to ...read more
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Q1. About Linux and AWS
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Q2. Python coding Test
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Q1. Deep dive in AWS
Ans. 
AWS is a cloud computing platform by Amazon offering a wide range of services for storage, computing, networking, databases, and more.
• AWS provides a wide range of services including EC2 (Elastic Compute Cloud), S3 (Simple Storage Service), RDS (Relational Database Service), and more.

• AWS offers scalability, flexibility, and cost-effectiveness for businesses of all sizes.

• AWS has a global infrastructure with data centers ...read more
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Q2. Deep dive in Terraform and Python
Ans. 
Terraform is an infrastructure as code tool, while Python is a versatile programming language often used for automation in DevOps.
• Terraform is used for provisioning and managing infrastructure resources in a declarative way.

• Python is commonly used for scripting, automation, and building tools in the DevOps ecosystem.

• Terraform can be integrated with Python scripts to enhance automation capabilities.

• Both Terraform and Py...read more
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Q1. Low level design
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Q2. High level design
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Leetcode medium to hard question

Q1. If i delete an instance on the console and then i deploy the same instance terraform template how will terraform behave?
Ans. 
Terraform will recreate the instance as per the template
• Terraform will detect that the instance is missing and recreate it based on the template

• The new instance will have the same configuration as defined in the template

• Any changes made to the instance outside of Terraform will be lost
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Q2. If i have an instance configuration terraform template, and i manually add an ebs to it through console and then give terraform apply how will terraform behave?
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Q3. What will be the IP range if i need 500 IPs?
Ans. 
The IP range for 500 IPs would typically be a /23 subnet.
• For 500 IPs, you would need at least a /23 subnet.

• A /23 subnet provides 512 IP addresses (2^9 = 512), with 510 usable IPs after subtracting network and broadcast addresses.

• The IP range for a /23 subnet would be from x.x.x.0 to x.x.x.255.
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Q4. Python coding on string manipulation
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Q5. What are the health checks after creating instances - 2/2? What do they mean?
Ans. 
Health checks after creating instances ensure the instances are functioning properly.
• Instance status checks ensure the instance is reachable and responding to traffic.

• System status checks ensure the underlying hardware is functioning properly.

• Example: If an instance fails the system status check, it may indicate a problem with the underlying host hardware.
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Q6. How to deploy microservices?
Ans. 
Microservices can be deployed using containerization tools like Docker and orchestration tools like Kubernetes.
• Use containerization tools like Docker to package each microservice along with its dependencies into a container image.

• Leverage orchestration tools like Kubernetes to manage and deploy multiple microservices across a cluster of machines.

• Implement continuous integration and continuous deployment (CI/CD) pipelin...read more
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Q7. Write terraform code to launch an ec2 instance in a vpc and attach a role to it
Ans. 
Launch an EC2 instance in a VPC and attach a role using Terraform
• Define a VPC resource in Terraform

• Define a subnet resource within the VPC

• Create a security group for the EC2 instance

• Define an IAM role for the EC2 instance

• Launch an EC2 instance within the subnet and attach the IAM role
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Q1. Day to day activities
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Q2. Why do you learn various technologies?
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Q3. How will it be beneficial for you to learn various technologies because you will be working with limited technologies?
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Q4. Your project workflow, and how do you manage your tasks
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Overall ok It was 30 min duration