FREE Docker Certified Associate Trivia Questions and Answers

How can John launch a container that utilizes the json-file log driver when he has configured his Docker daemon to use the syslog log driver by default?

By using “--logger json-file” along with docker run

By using “--log-opt json-file” along with docker run

By using “--log-driver json-file” along with docker run

None of the above

Correct! Wrong!

Which of the commands can be used to view an IPv4 network's subnet?

docker info network

docker network inspect

docker network is

docker network info

Correct! Wrong!

"docker network inspect" is an authorized command to examine a certain network

If the docker engine does not serve as a manager node for the docker swarm, how may overlay networks be created?

False

True

Correct! Wrong!

In the event that the docker engine is a component of a swarm, overlay networks may exist. Therefore, being a manager node in a swarm is a requirement for creating an overlay network.
The following problem occurs when we attempt to create overlay networks from a non-manager node:

ubuntu@ip-10-0-1-11:~$ docker network create -d overlay test-network

Daemon error message: Unable to build a multi-host network from a worker node. Please build the network starting with a manager node.

Which of the subsequent claims is true? Select exactly two statements.

Please select 2 correct answers

Only one container can be spawned from a given image at a time

Image is a collection of immutable layers whereas container is a running instance of an image.

If multiple containers are spawned from the same image then they all use the same copy of image in memory.

Container can exist without the image but image cannot exist without container

Correct! Wrong!

There are immutable layers in an image. A container is a live copy of an image.
When several containers are launched from a single picture, only one copy of the image is stored in memory. In order to handle its local modifications, each container has a separate Read and Write layer.

Which of the following parameters would allow you to SSH into an active "nginx" Docker container?

docker run -it nginx /bin/sh

docker exec -it nginx /bin/sh

docker ssh -it nginx /bin/sh

docker inspect webserver

Correct! Wrong!

"docker exec -it nginx /bin/sh" will construct a TTY-equipped interactive session that is tied to the STDIN.

On AWS, you are creating a brand-new Docker Swarm. You must make sure that neither the Security Group Rules nor the Network Access Control List are blocking traffic between hosts. Which of the following statements accurately describes every port that needs to be open between Docker hosts?

TCP/7946 and UDP/2377

TCP/2377, TCP/7946, and UDP/7946

TCP/2377 and TCP/4789

TCP/2377 and UDP/2377

Correct! Wrong!

TCP port 2377 for cluster management communications

TCP and UDP port 7946 for communication among nodes

What commands are valid to run global services in Docker swarm?

docker service create --global

docker service create --mode global

docker swarm create --global

docker swarm create --mode global

Correct! Wrong!

FREE Docker Certified Associate Trivia Questions and Answers

How can John launch a container that utilizes the json-file log driver when he has configured his Docker daemon to use the syslog log driver by default?

Which of the commands can be used to view an IPv4 network's subnet?

If the docker engine does not serve as a manager node for the docker swarm, how may overlay networks be created?

Which of the subsequent claims is true? Select exactly two statements.

Which of the following parameters would allow you to SSH into an active "nginx" Docker container?

On AWS, you are creating a brand-new Docker Swarm. You must make sure that neither the Security Group Rules nor the Network Access Control List are blocking traffic between hosts. Which of the following statements accurately describes every port that needs to be open between Docker hosts?

What commands are valid to run global services in Docker swarm?

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