7. Utilize Docker Images in Local Developer Environment 200-901 Practice Questions (Page 5)

Questions 21–25

1. 21foundation · easy

   What does the 'docker history' command display for each layer of an image?

   • AThe environment variables and exposed ports
   • BThe container ID and its status
   • CThe registry URL and push date
   • DThe command that created the layer and the layer size
   Reveal Solution Discussion Select an answer first
2. 22foundation · easy

   Before pushing an image to a registry, what must be included in the image name?

   • AThe Dockerfile path
   • BThe container ID
   • CThe registry hostname and repository
   • DThe image digest
   Reveal Solution Discussion Select an answer first
4. 23foundation · easy

   Which command downloads a Docker image named 'nginx' from Docker Hub?

   • Adocker fetch nginx
   • Bdocker get nginx
   • Cdocker download nginx
   • Ddocker pull nginx
   Reveal Solution Discussion Select an answer first
5. 24foundation · easy

   What file is used to define the steps for building a custom Docker image?

   • Aimage.yaml
   • BDockerfile
   • Cdocker-compose.yml
   • Dbuild.conf
   Reveal Solution Discussion Select an answer first
6. 25application · medium

   A developer wants to download a specific version of the 'nginx' image from Docker Hub to use locally. The developer wants to ensure the image is available before running a container. Which command should the developer run first?

   • Adocker tag nginx:1.21 nginx:latest
   • Bdocker images nginx:1.21
   • Cdocker run nginx:1.21
   • Ddocker pull nginx:1.21
   Reveal Solution Discussion Select an answer first