Valid DCA Dumps shared by ExamDiscuss.com for Helping Passing DCA Exam! ExamDiscuss.com now offer the newest DCA exam dumps, the ExamDiscuss.com DCA exam questions have been updated and answers have been corrected get the newest ExamDiscuss.com DCA dumps with Test Engine here:
Access DCA Dumps Premium Version
(189 Q&As Dumps, 35%OFF Special Discount Code: freecram)
<< Prev Question Next Question >>
Question 14/72
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 service create myorg/myimage:1.0
If myorg/myimage: 1.0 is unsigned, does Docker block this command?
Solution: docker service create myorg/myimage:1.0
Correct Answer: A
Explanation
When content trust is enabled, Docker blocks any command that operates on unsigned images, such as docker service create. This is because Docker Content Trust (DCT) allows users to verify the integrity and publisher of specific image tags, using digital signatures stored on a Notary server. If an image tag is not signed, or the signature cannot be verified, Docker will refuse to pull, run, or build with that image. Therefore, if myorg/myimage:1.0 is unsigned, Docker will block the command docker service create myorg/myimage:1.0 and display an error message. References:
* Content trust in Docker
* Docker Content Trust: What It Is and How It Secures Container Images
* Automation with content trust
When content trust is enabled, Docker blocks any command that operates on unsigned images, such as docker service create. This is because Docker Content Trust (DCT) allows users to verify the integrity and publisher of specific image tags, using digital signatures stored on a Notary server. If an image tag is not signed, or the signature cannot be verified, Docker will refuse to pull, run, or build with that image. Therefore, if myorg/myimage:1.0 is unsigned, Docker will block the command docker service create myorg/myimage:1.0 and display an error message. References:
* Content trust in Docker
* Docker Content Trust: What It Is and How It Secures Container Images
* Automation with content trust
- Question List (72q)
- Question 1: Is this a way to configure the Docker engine to use a regist...
- Question 2: You want to create a container that is reachable from its ho...
- Question 3: Will This command list all nodes in a swarm cluster from the...
- Question 4: A persistentVolumeClaim (PVC) is created with the specificat...
- Question 5: A company's security policy specifies that development and p...
- Question 6: Will this command ensure that overlay traffic between servic...
- Question 7: Seven managers are in a swarm cluster. Is this how should th...
- Question 8: Is this the purpose of Docker Content Trust? Solution.Indica...
- Question 9: Will this sequence of steps completely delete an image from ...
- Question 10: Are these conditions sufficient for Kubernetes to dynamicall...
- Question 11: Are these conditions sufficient for Kubernetes to dynamicall...
- Question 12: Your organization has a centralized logging solution, such a...
- Question 13: Does this describe the role of Control Groups (cgroups) when...
- Question 14: You configure a local Docker engine to enforce content trust...
- Question 15: Will this command list all nodes in a swarm cluster from the...
- Question 16: You add a new user to the engineering organization in DTR. W...
- Question 17: The Kubernetes yaml shown below describes a networkPolicy. (...
- Question 18: Will this action upgrade Docker Engine CE to Docker Engine E...
- Question 19: Will this Linux kernel facility limit a Docker container's a...
- Question 20: Will this command display a list of volumes for a specific c...
- Question 21: Which networking drivers allow you to enable multi-host netw...
- Question 22: Your organization has a centralized logging solution, such a...
- Question 23: Will this Linux kernel facility limit a Docker container's a...
- Question 24: Is this the purpose of Docker Content Trust? Solution: Enabl...
- Question 25: Two development teams in your organization use Kubernetes an...
- Question 26: Is this an advantage of multi-stage builds? Solution: optimi...
- Question 27: Your organization has a centralized logging solution, such a...
- Question 28: Does this command create a swarm service that only listens o...
- Question 29: Is this a type of Linux kernel namespace that provides conta...
- Question 30: The Kubernetes yaml shown below describes a networkPolicy. (...
- Question 31: You want to mount external storage to a particular filesyste...
- Question 32: Is this the purpose of Docker Content Trust? Solution: Verif...
- Question 33: Is this a function of UCP? Solution: scans images to detect ...
- Question 34: Will this command ensure that overlay traffic between servic...
- Question 35: Is this an advantage of multi-stage builds? Solution: simult...
- Question 36: You add a new user to the engineering organization in DTR. W...
- Question 37: Your organization has a centralized logging solution, such a...
- Question 38: A company's security policy specifies that development and p...
- Question 39: An application image runs in multiple environments, with eac...
- Question 40: Will this action upgrade Docker Engine CE to Docker Engine E...
- Question 41: You configure a local Docker engine to enforce content trust...
- Question 42: Does this describe the role of Control Groups (cgroups) when...
- Question 43: Which docker run` flag lifts cgroup limitations?...
- Question 44: You want to create a container that is reachable from its ho...
- Question 45: Does this command display all the pods in the cluster that a...
- Question 46: Will this Linux kernel facility limit a Docker container's a...
- Question 47: Seven managers are in a swarm cluster. Is this how should th...
- Question 48: You add a new user to the engineering organization in DTR. W...
- Question 49: Two development teams in your organization use Kubernetes an...
- Question 50: Will this command mount the host's '/data' directory to the ...
- Question 51: A users attempts to set the system time from inside a Docker...
- Question 52: You created a new service named 'http' and discover it is no...
- Question 53: In Docker Trusted Registry, is this how a user can prevent a...
- Question 54: Will this sequence of steps completely delete an image from ...
- Question 55: Will a DTR security scan detect this? Solution.private keys ...
- Question 56: In the context of a swarm mode cluster, does this describe a...
- Question 57: A company's security policy specifies that development and p...
- Question 58: The following Docker Compose file is deployed as a stack: (E...
- Question 59: Does this command display all the pods in the cluster that a...
- Question 60: The Kubernetes yaml shown below describes a networkPolicy. (...
- Question 61: The following Docker Compose file is deployed as a stack: (E...
- Question 62: Does this command display all the pods in the cluster that a...
- Question 63: During development of an application meant to be orchestrate...
- Question 64: Will this action upgrade Docker Engine CE to Docker Engine E...
- Question 65: Seven managers are in a swarm cluster. Is this how should th...
- Question 66: One of several containers in a pod is marked as unhealthy af...
- Question 67: Is this a type of Linux kernel namespace that provides conta...
- Question 68: Does this describe the role of Control Groups (cgroups) when...
- Question 69: Is this a type of Linux kernel namespace that provides conta...
- Question 70: A company's security policy specifies that development and p...
- Question 71: Will this command display a list of volumes for a specific c...
- Question 72: Is this a Linux kernel namespace that is disabled by default...
