1. What does docker build -t app:1.0 . do? Junior A. list the currently running containers B. build an image from the Dockerfile in the current directory and tag it app:1.0 C. start a container in the background mapping host port 8080 to container port 80 D. upload the tagged image to its remote registry
2. Which command will build an image from the Dockerfile in the current directory and tag it app:1.0? Junior A. docker logs -f web B. docker build -t app:1.0 . C. docker exec -it web bash D. docker run -d -p 8080:80 app
3. Which statement is correct? Junior A. docker build -t app:1.0 . — open an interactive shell inside the already-running container web B. docker build -t app:1.0 . — upload the tagged image to its remote registry C. docker build -t app:1.0 . — start a container in the background mapping host port 8080 to container port 80 D. docker build -t app:1.0 . — build an image from the Dockerfile in the current directory and tag it app:1.0
4. What does docker run -d -p 8080:80 app do? Junior A. list the currently running containers B. start a container in the background mapping host port 8080 to container port 80 C. upload the tagged image to its remote registry D. open an interactive shell inside the already-running container web
5. Which command will start a container in the background mapping host port 8080 to container port 80? Junior A. docker build -t app:1.0 . B. docker ps C. docker logs -f web D. docker run -d -p 8080:80 app
6. Which statement is correct? Junior A. docker run -d -p 8080:80 app — open an interactive shell inside the already-running container web B. docker run -d -p 8080:80 app — start a container in the background mapping host port 8080 to container port 80 C. docker run -d -p 8080:80 app — list the currently running containers D. docker run -d -p 8080:80 app — stream (follow) the stdout/stderr logs of the container named web
7. What does docker ps do? Junior A. list the currently running containers B. start a container in the background mapping host port 8080 to container port 80 C. stream (follow) the stdout/stderr logs of the container named web D. build an image from the Dockerfile in the current directory and tag it app:1.0
8. Which command will list the currently running containers? Junior A. docker logs -f web B. docker ps C. docker exec -it web bash D. docker run -d -p 8080:80 app
9. Which statement is correct? Junior A. docker ps — open an interactive shell inside the already-running container web B. docker ps — list the currently running containers C. docker ps — stream (follow) the stdout/stderr logs of the container named web D. docker ps — upload the tagged image to its remote registry
10. What does docker logs -f web do? Junior A. start a container in the background mapping host port 8080 to container port 80 B. list the currently running containers C. stream (follow) the stdout/stderr logs of the container named web D. upload the tagged image to its remote registry
11. Which command will stream (follow) the stdout/stderr logs of the container named web? Junior A. docker logs -f web B. docker run -d -p 8080:80 app C. docker push registry/app:1.0 D. docker ps
12. Which statement is correct? Junior A. docker logs -f web — build an image from the Dockerfile in the current directory and tag it app:1.0 B. docker logs -f web — stream (follow) the stdout/stderr logs of the container named web C. docker logs -f web — upload the tagged image to its remote registry D. docker logs -f web — open an interactive shell inside the already-running container web
13. What does docker exec -it web bash do? Mid A. start a container in the background mapping host port 8080 to container port 80 B. build an image from the Dockerfile in the current directory and tag it app:1.0 C. open an interactive shell inside the already-running container web D. upload the tagged image to its remote registry
14. Which command will open an interactive shell inside the already-running container web? Mid A. docker run -d -p 8080:80 app B. docker exec -it web bash C. docker ps D. docker logs -f web
15. Which statement is correct? Mid A. docker exec -it web bash — upload the tagged image to its remote registry B. docker exec -it web bash — list the currently running containers C. docker exec -it web bash — open an interactive shell inside the already-running container web D. docker exec -it web bash — stream (follow) the stdout/stderr logs of the container named web
16. What does docker push registry/app:1.0 do? Mid A. open an interactive shell inside the already-running container web B. stream (follow) the stdout/stderr logs of the container named web C. build an image from the Dockerfile in the current directory and tag it app:1.0 D. upload the tagged image to its remote registry
17. Which command will upload the tagged image to its remote registry? Mid A. docker exec -it web bash B. docker ps C. docker run -d -p 8080:80 app D. docker push registry/app:1.0
18. Which statement is correct? Mid A. docker push registry/app:1.0 — start a container in the background mapping host port 8080 to container port 80 B. docker push registry/app:1.0 — list the currently running containers C. docker push registry/app:1.0 — upload the tagged image to its remote registry D. docker push registry/app:1.0 — build an image from the Dockerfile in the current directory and tag it app:1.0