Day 3 | Docker Containers | Interview Scenarios with Answers | Real-Time Docker Questions

🚀 Welcome to Day 3 of the Zero to Interview Hero - Docker Course! 🚀 Whether you're a fresher starting in DevOps, an experienced professional sharpening your Docker/Kubernetes skills, or someone planning a career switch into cloud and DevOps, this video is your go-to resource! Today, we dive deep into one of the most crucial Docker topics: 👉 Docker Containers - Real Interview Q&A Also Watch : Docker | Zero to Interview Hero Course https://www.youtube.com/playlist?list=PL8h_iS3fGq0KW3nd1u9HNygpK6LVhS0BN Day 1 | Docker Basics Interview Scenarios with Answers | Real-Time Docker Questions https://youtu.be/HlLIgUTGVm0 Day 2 | Docker Architecture | Interview Scenarios with Answers | Real-Time Docker Questions https://youtu.be/TqAn7rvDrog With this series, you'll never skip a Docker interview question again. Each question is tackled with a practical, real-world troubleshooting mindset — exactly how top candidates answer in interviews! 🔹 Perfect for: Freshers preparing for DevOps interviews Experienced engineers brushing up on Docker/Kubernetes Career switchers entering the Cloud/DevOps field ⏰ Video Breakdown - Chapter 3: Working with Docker Containers (Questions and timestamps) 00:00 Intro 00:29 Que 1 - A container keeps crashing on start. How do you approach this? 01:06 Que 2 - You hit a “port already in use” error while running a container. How do you fix it? 01:46 Que 3 - What do you do if the host runs out of disk due to Docker? 02:22 Que 4 - How do you make sure container data isn’t lost after a restart? 03:34 Que 5 - A container won’t start and gives no useful logs. What next? 04:11 Que 6 - How do you reduce Docker image size in your projects? 05:16 Que 7 - Your containers can’t talk to each other. What do you do? 05:47 Que 8 - How do you roll back a failed container deployment? 06:17 Que 9 - A container exits with code 137. What does that mean? 06:48 Que 10 - How do you deal with logs in production containers? 07:17 Que 11 - Why might a change in Dockerfile not reflect in the image? 07:49 Que 12 - What’s your process for debugging networking issues between containers? 08:23 Que 14 - You get “ImagePullBackOff” on a Kubernetes pod. What’s your first check? 09:07 Que 15 - What’s your strategy to keep Docker host clean? 09:35 Que 16 - How do you keep a container running in the background during debugging? 10:06 Que 17 - What’s the difference between bind mounts and volumes? When do you use each? 10:06 Que 18 - What’s the first thing you check if Docker says "Cannot connect to daemon"? 11:02 Que 19 - How do you monitor the health of a container? 11:31 Que 20 - You’re in a team. How do you ensure Docker images are consistent across all devs? 12:07 Que 21 - How do you execute a command inside a running container without restarting it? 12:50 Que 22 - How do you execute a command inside a running container without restarting it? 13:27 Que 23 - What is the difference between docker exec and docker attach? 14:07 Ending ✅ Don't forget to Like, Subscribe, and Hit the Bell Icon 🔔 for daily/weekly real-world DevOps interview prep! ✅ Share with anyone preparing for Docker, Kubernetes, and DevOps interviews. 👉 #DevOps #Docker #Kubernetes #DevOpsInterview #CareerSwitch #CloudComputing #Containers #ZeroToHero #TechWorldWithSahana #ZerotoInterviewHero