DevOps Consultant Interview Questions and Answers: Insights from Experience Recently, Someone had the opportunity to interview for a DevOps Consultant role. The session lasted 45 minutes and covered various aspects of my 3-year experience, tools, technologies, and best practices. Here’s how I tackled the questions: 1. Walk me through your profile? I highlighted my journey from the basics of DevOps to working on advanced tools and technologies. I emphasized: My hands-on experience with CI/CD pipelines. Proficiency in tools like Jenkins, Docker, Kubernetes, Terraform, Ansible, and Prometheus. Key projects, challenges faced, and my contributions to optimizing DevOps processes. 2. What are the tools and technologies you have worked on? I listed the tools with context: CI/CD : Jenkins, GitHub Actions. Containerization : Docker, Kubernetes, Helm. Infrastructure as Code (IaC) : Terraform, CloudFormation. Monitoring : Prometheus, Grafana, Loki. Security : SonarQube, Trivy for image...
How I Would Solve These Tricky SQL Questions Asked in American Express Interview SQL is a fundamental skill for any data analyst, and mastering complex queries is key to standing out in interviews. Below, I break down how I would approach solving the tricky SQL questions mentioned. Each of these challenges is designed to test both your technical proficiency and your problem-solving ability. Let’s dive into the solutions. 1. Find the Second-Highest Salary in a Table Without Using LIMIT or TOP This is a classic problem that requires creativity. My solution: sql SELECT MAX (salary) FROM employees WHERE salary < ( SELECT MAX (salary) FROM employees); Here, the subquery finds the maximum salary, and the outer query selects the highest salary below that. 2. Find All Employees Who Earn More Than Their Managers Joining the table to itself is the key here: sql SELECT e1.employee_name FROM employees e1 JOIN employees e2 ON e1.manager_id = e2.employee_id WHERE e1.salary > ...