70-740 ExamRef-12 TB

10. What is the name of Docker's public image repository? A. Docker Hub B. GitHub C. Registry D. PSGallery

A. Docker Hub Docker Hub (https://hub.docker.com) is the name of Docker's public image repository.

5. Which Docker network driver involves each container endpoint connecting directly to the container host's physical network. A. Transparent B. L2 Bridge C. L2 Tunnel D. NAT

A. Transparent The Transparent Docker network driver involves each container endpoint connecting directly to the container host's physical network.

2. What action is performed by the -v parameter in the Docker command docker run -it -v? A. creates a data volume B. spawns an interactive session C. opens the container with administrative credentials D. creates a new PowerShell session

A. creates a data volume The -v parameter in the Docker command docker run -it -v is used to create a data volume inside the container.

8. Which docker run CPU parameter specifies which nodes on a NUMA host the container can use? A. -c B. -cpuset-mems C. -cpuset-cpus D. -cpu-shares

B. -cpuset-mems The docker -cpuset-mems docker run CPU parameter specifies which nodes on a NUMA host the container can use.

1. Which Docker command enables you to see a list of all the running containers on a host? A. docker attach B. docker ps -a C. docker run -it D. docker rm

B. docker ps -a The docker ps -a Docker command enables you to see a list of all the running containers on a host.

3. What is the purpose of the -it parameter in a docker run command? A. spawns a new container B. starts an interactive console session C. creates a data volume in the container D. secures the container

B. starts an interactive console session The -it parameter in a docker run command starts a virtual console session. The docker run command spawns a new container.

4. The Docker engine creates a(n) __________ network by default when the dockerd service first runs. A. L2 Bridge B. L2 Tunnel C. NAT D. Transparent

C. NAT The Docker engine creates a NAT network by default when the dockerd service first runs.

6. Which Docker command saves any changes made to the current container to a new container image? A. image B. diff C. commit D. ps

C. commit The docker commit statement saves any changes to the current container to a new container image.

9. The ___________ script contains instructions for building a new Docker image. A. dockerbuild B. dockerpull C. dockerfile D. dockerimage

C. dockerfile The dockerfile script contains instructions for building a new Docker image.

7. Which docker run memory parameter specifies the total amount of memory plus virtual memory that the container can use? A. -m B. -kernel-memory C. -oom-kill-disable D. -memory-swap

D. -memory-swap The -memory-swap docker run memory parameter specifies the total amount of memory plus virtual memory that the container can use.