Preparing for a large-scale Site Reliability Engineering (SRE) and DevOps interview for distributed systems requires a combination of technical knowledge, problem-solving skills, and a deep understanding of relevant tools and methodologies. Here's a comprehensive guide to help you prepare:

Technical Knowledge:

1. Distributed Systems Concepts:

• Understand the fundamentals of distributed systems, including consistency, availability, and partition tolerance (CAP theorem).
• Know about distributed storage, data replication, and partitioning strategies.

1. Networking:

• Have a solid understanding of networking principles, including TCP/IP, DNS, load balancing, and routing.

1. Cloud Platforms:

• Familiarize yourself with major cloud platforms (e.g., AWS, Azure, Google Cloud) and their services relevant to distributed systems.

1. Containerization and Orchestration:

• Understand containerization technologies like Docker and container orchestration tools such as Kubernetes.

1. Infrastructure as Code (IaC):

• Know how to use tools like Terraform or AWS CloudFormation for infrastructure provisioning.

1. Monitoring and Logging:

• Be well-versed in monitoring tools (Prometheus, Grafana) and logging frameworks (ELK stack, Splunk).

1. Continuous Integration/Continuous Deployment (CI/CD):

• Understand CI/CD pipelines, version control systems (Git), and tools like Jenkins, Travis CI, or GitLab CI.

1. Automation Scripting:

• Be proficient in scripting languages like Python, Bash, or PowerShell for automating tasks.

You also need to have a hands on with leetcode medium at least and a good understanding of transaction handling.