[Oct-2023] Study resources for the Valid DCA Braindumps! [Q59-Q82]

QUESTION 59
The Kubernetes yaml shown below describes a networkPolicy.

Will the networkPolicy BLOCK this traffic?
Solution: a request issued from a pod lacking the tier: api label, to a pod bearing the tier: backend label

QUESTION 60
Is this a type of Linux kernel namespace that provides container isolation?
Solution: Network

QUESTION 61
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.)

QUESTION 62
Which of these swarm manager configurations will cause the cluster to be in a lost quorum state?

QUESTION 63
After creating a new service named ‘http’, you notice that the new service is not registering as healthy. How do
you view the list of historical tasks for that service by using the command line?

QUESTION 64
Will this command mount the host’s ‘/data’ directory to the ubuntu container in read-only mode?
Solution: ‘docker run –add-volume /data /mydata -read-only ubuntu’

QUESTION 65
Which of the following is required to install Docker EE from a package repository?

QUESTION 66
Is this a supported user authentication method for Universal Control Plane?
Solution. SAML

QUESTION 67
You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object.
Does this command display it?
Solution: kubectl events deployment api

QUESTION 68
Is this a supported user authentication method for Universal Control Plane?
Solution: PAM

QUESTION 69
Will this command list all nodes in a swarm cluster from the command line?
Solution: ‘docker Is -a’

QUESTION 70
The following Docker Compose file is deployed as a stack:

Is this statement correct about this health check definition?
Solution: Health checks test for app health ten seconds apart. Three failed health checks transition the container into “unhealthy” status.

QUESTION 71
You configure a local Docker engine to enforce content trust by setting the environment variable DOCKER_CONTENT_TRUST=1.
If myorg/myimage: 1.0 is unsigned, does Docker block this command?
Solution: docker image import <tarball> myorg/myimage:1.0

QUESTION 72
A Kubernetes node is allocated a /26 CIDR block (64 unique IPs) for its address space.
If every pod on this node has exactly two containers in it, how many pods can this address space support on this node?

QUESTION 73
What is one way of directly transferring a Docker Image from one Docker host in another?

QUESTION 74
You are troubleshooting a Kubernetes deployment called api, and want to see the events table for this object.
Does this command display it?
Solution: kubectl describe deployment api

QUESTION 75
In the context of a swarm mode cluster, does this describe a node?
Solution: a virtual machine participating in the swarm

QUESTION 76
Two development teams in your organization use Kubernetes and want to deploy their applications while ensuring that Kubernetes-specific resources, such as secrets, are grouped together for each application.
Is this a way to accomplish this?
Solution. Create a collection for for each application.

QUESTION 77
Seven managers are in a swarm cluster.
Is this how should they be distributed across three datacenters or availability zones?
Solution: 3-3-1

QUESTION 78
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: Use the DTR web Ul to make all tags in the repository immutable.

QUESTION 79
What service mode is used to deploy a single task of a service to each node?

QUESTION 80
In the context of a swarm mode cluster, does this describe a node?
Solution: a physical machine participating in the swarm

QUESTION 81
What is the difference between the ADD and COPY dockerfile instructions? (choosen 2)

QUESTION 82
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 unhealthy container is restarted.