Exam 350-901 topic 1 question 149 discussion

Actual exam question from Cisco's 350-901

Question #: 149
Topic #: 1

Refer to the exhibit. The command docker build --tag=friendlyhello . is run to build a docker image from the given Dockerfile, reguirements.txt, and app.py. Then the command docker run -p 4000:80 friendlyhello is executed to run the application.
Which URL is entered in the web browser to see the content served by the application?

A. http://127.0.0.1:80
B. http://4000:80
C. http://localhost:4000
D. http://localhost:80

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Suggested Answer: C 🗳️

by lente_kriebels at Aug. 22, 2021, 1:50 p.m.

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lente_kriebels

Highly Voted 1 year, 11 months ago

Correct answer is C

upvoted 18 times

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m0nking

Highly Voted 1 year, 8 months ago

Selected Answer: C

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

upvoted 8 times

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examtopicstroilevw

Most Recent 4 months, 2 weeks ago

Selected Answer: C

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.

upvoted 1 times