QUESTION NO: 1
Does this command create a swarm service that only listens on port 53 using the UDP protocol?
Solution: 'docker service create --name dns-cache -p 53:53/udp dns-cache'
Does this command create a swarm service that only listens on port 53 using the UDP protocol?
Solution: 'docker service create --name dns-cache -p 53:53/udp dns-cache'
Correct Answer: B
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QUESTION NO: 2
In the context of a swarm mode cluster, does this describe a node?
Solution.an instance of the Docker CLI connected to the swarm
In the context of a swarm mode cluster, does this describe a node?
Solution.an instance of the Docker CLI connected to the swarm
Correct Answer: A
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QUESTION NO: 3
You are running only Kubernetes workloads on a worker node that requires maintenance, such as installing patches or an OS upgrade.
Which command must be run on the node to gracefully terminate all pods on the node, while marking the node as unschedulable?
You are running only Kubernetes workloads on a worker node that requires maintenance, such as installing patches or an OS upgrade.
Which command must be run on the node to gracefully terminate all pods on the node, while marking the node as unschedulable?
Correct Answer: B
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QUESTION NO: 4
A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.
Can this be used to schedule containers to meet the security policy requirements?
Solution: node affinities
A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.
Can this be used to schedule containers to meet the security policy requirements?
Solution: node affinities
Correct Answer: B
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QUESTION NO: 5
Will this command display a list of volumes for a specific container?
Solution: 'docker container inspect nginx'
Will this command display a list of volumes for a specific container?
Solution: 'docker container inspect nginx'
Correct Answer: B
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QUESTION NO: 6
One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?
Solution: The controller managing the pod is autoscaled back to delete the unhealthy pod and alleviate load.
One of several containers in a pod is marked as unhealthy after failing its livenessProbe many times. Is this the action taken by the orchestrator to fix the unhealthy container?
Solution: The controller managing the pod is autoscaled back to delete the unhealthy pod and alleviate load.
Correct Answer: A
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QUESTION NO: 7
In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository?
Solution: Keep a backup copy of the image on another repository.
In Docker Trusted Registry, is this how a user can prevent an image, such as 'nginx:latest', from being overwritten by another user with push access to the repository?
Solution: Keep a backup copy of the image on another repository.
Correct Answer: A
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QUESTION NO: 8
Is this an advantage of multi-stage builds?
Solution: optimizes Images by copying artifacts selectively from previous stages
Is this an advantage of multi-stage builds?
Solution: optimizes Images by copying artifacts selectively from previous stages
Correct Answer: B
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QUESTION NO: 9
An application image runs in multiple environments, with each environment using different certificates and ports.
Is this a way to provision configuration to containers at runtime?
Solution: Create a Dockerfile for each environment, specifying ports and ENV variables for certificates.
An application image runs in multiple environments, with each environment using different certificates and ports.
Is this a way to provision configuration to containers at runtime?
Solution: Create a Dockerfile for each environment, specifying ports and ENV variables for certificates.
Correct Answer: A
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