R Ram Sharma 🎓 Coach ⭐ 193.88K Points 📊 Docker Q. What is a Docker 'Dockerfile'? (A) A configuration file used to build a Docker image (B) A file that defines the environment variables for Docker containers (C) A file used to orchestrate containers in Docker Swarm (D) A file used to manage Docker volumes 👁️ Show Answer 💬 Discuss 🔗 Share ⚡Menu ✅ Correct Answer: (A) A configuration file used to build a Docker image Explanation: A Dockerfile is a script containing a series of instructions on how to build a Docker image.