Exam 350-901 topic 1 question 149 discussion

Correct answer is C

using -p at runtime publishs a container’s specific port to the Docker host docker run -p <hostPort>:<containerPort> imageName

This is a question about 'docker run -p" Publish or expose port (-p, --expose) docker run -p 127.0.0.1:80:8080/tcp nginx:alpine This binds port 8080 of the container to TCP port 80 on 127.0.0.1 of the host. You can also specify udp and sctp ports. The Networking overview page explains in detail how to publish ports with Docker. Note If you don't specify an IP address (i.e., -p 80:80 instead of -p 127.0.0.1:80:80) when publishing a container's ports, Docker publishes the port on all interfaces (address 0.0.0.0) by default.

Correct answer: C docker run -p <hostPort>:<containerPort> imageName

http://localhost:4000