Will this Linux kernel facility limit a Docker container's access to host resources, such as CPU or memory?
Solution: seccomp

• A.No
• B.Yes

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Which of the following commands will ensure that overlay traffic between service tasks is encrypted?

• A.docker service create --network <network-name> --encrypted <service-name>
• B.docker service create --network <network-name> --secure <service-name>
• C.docker network create -d overlay --secure <network-name>
• D.docker network create -d overlay -o encrypted=true <network-name>

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Will this command ensure that overlay traffic between service tasks is encrypted?
Solution: docker network create -d overlay -o encrypted=true <network-name>

• A.No
• B.Yes

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You are pulling images from a Docker Trusted Registry installation configured to use self-signed certificates, and this error appears:
'x509: certificate signed by unknown authority'.
You already downloaded the Docker Trusted Registry certificate authority certificate from https://dtr.example.com/ca.
How do you trust it? (Select two.)

• A.Place the certificate in '/etc/docker/dtr/dtr.example.com.crt' and restart the Docker daemon on all cluster nodes.
• B.Pass --insecure-registry to the Docker client.
• C.Pass '-trust-certificate ca.crt' to the Docker client.
• D.Place the certificate in your OS certificate path, trust the certificate system-wide, and restart the Docker daemon across all cluster nodes.
• E.Place the certificate in '/etc/docker/certs.d/dtr.example com/ca.crt' on all cluster nodes.

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The following health check exists in a Dockerfile:
'HEALTCHECK
CMD curl --fail http://localhost/health || exit 1'
Which of the following describes its purpose?

• A.Defines the health check endpoint on the local host interface for containers to monitor the health of the docker engine.
• B.Defines the health check for the containerized application so that the application health can be monitored by the Docker engine
• C.Defines the action taken when container health fails, which in this case will kill the container with exit status 1.
• D.Defines the health check endpoint on the localhost interface for external monitoring tools to monitor the health of the docker engine.

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