🚀 Introduction DevOps has matured from a set of tools to a strategic business function.In 2025, senior DevOps engineers, platform engineers, and architects are expected to design resilient systems, secure pipelines, and enable developer velocity — all while maintaining governance and compliance. High-level DevOps interviews go beyond syntax or command knowledge. They test: This guide … Read more
Managing Kubernetes efficiently often comes down to knowing the right commands at the right time. Whether you’re debugging a pod, managing services, or deploying applications, this cheat sheet will become your go-to reference. Let’s break it down section by section with detailed explanations! 📘 📡 Kubernetes Cluster Commands 🔧 These commands help you inspect your … Read more
In modern DevOps environments, Docker is everywhere — but knowing basic commands isn’t enough. Real-world usage requires smart troubleshooting, optimization, and deployment strategies. Below is a curated list of Docker scenario-based questions with real-life examples, tailored for interviews and hands-on engineering 🚀 🛑 1. Port Conflict in Containers ✅ Solution: 🔍 Real-Life Example:During a production … Read more
1️⃣ How to run Kubernetes locally? You can run Kubernetes locally using these tools: 🧪 These are ideal for local development, learning, and testing Kubernetes configurations without needing a cloud provider. 2️⃣ What is Kubernetes Load Balancing? Kubernetes uses multiple load balancing mechanisms to distribute traffic evenly across pods: 🎯 Load balancing ensures high availability … Read more
1️⃣ User Management: A user complains they cannot log in. How will you troubleshoot? 🔍 Steps to resolve: 1️⃣ Check if the user exists: 2️⃣ Verify the account is not locked: 3️⃣ Check failed login attempts: 4️⃣ Ensure correct permissions for the home directory: 2️⃣ File Permissions: A script is executable by one user but … Read more
1. What is DevOps, and why is it important? 🚀 DevOps is a software development approach that combines development (Dev) and IT operations (Ops) to enable faster and more reliable software delivery. It focuses on automation, collaboration, and continuous improvement, helping organizations enhance efficiency, reduce deployment time, and improve software quality. 💻⚡ 2. What are … Read more
I came across several scenario-based Kubernetes interview questions that I’d like to share with you all. 1.Pods in CrashLoopBackOff State :-• Imagine you deploy an application on Kubernetes, but some of your pods go into a `CrashLoopBackOff` state. How would you troubleshoot and resolve this issue? Let’s break down the steps to troubleshoot and resolve … Read more
1. CrashLoopBackOff State Check Pod Logs: kubectl logs Inspect Pod YAML: kubectl get pod -o yaml Examine Container Images: kubectl describe pod 2. Image Pull Back Off Verify Image Existence: docker images Check Registry Credentials: kubectl describe secret <registry-secret-name> 3. Services Latency Monitor Metrics: kubectl top pod <pod-name> || … Read more
In K8s, both Service & Deployment seem to shelter a group of Pods with similar characteristics by providing an interface on top. So what’s the difference? 👉 A Deployment keeps a set of Pods running as specified by the user If you want to run 5 Pods for your application, you can create & manage … Read more
1) Define the various components of Kubernetes Architecture? Basically, there are 2 components of Kubernetes and those are master nodes and worker nodes. Further, these nodes have different components to support Kubernetes. Components of Master Nodes Components of Worker Nodes 2) Explain Kube-proxy? The Kube-proxy is a component of worker nodes. The Kube-proxy goes through … Read more