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DCA시험대비덤프최신샘플문제, DCA퍼펙트덤프문제

참고: DumpTOP에서 Google Drive로 공유하는 무료 2025 Docker DCA 시험 문제집이 있습니다: https://drive.google.com/open?id=199QKrjjvPxr-RR7v7hyymv89cCcONhUe

DumpTOP는 우수한 IT인증시험 공부가이드를 제공하는 전문 사이트인데 업계에서 높은 인지도를 가지고 있습니다. DumpTOP에서는 IT인증시험에 대비한 모든 덤프자료를 제공해드립니다. Docker인증 DCA시험을 준비하고 계시는 분들은DumpTOP의Docker인증 DCA덤프로 시험준비를 해보세요. 놀라운 고득점으로 시험패스를 도와드릴것입니다.시험에서 불합격하면 덤프비용 전액환불을 약속드립니다.

Docker Certified Associate(DCA) 시험은 Docker, Inc.에서 제공하는 자격증 프로그램으로, IT 전문가들의 Docker 기술 사용 능력과 지식을 인증합니다. 이 시험은 컨테이너화, 이미지 생성, 오케스트레이션, 네트워킹 및 보안과 같은 Docker의 핵심 개념에 대한 지식을 시험합니다. DCA 시험은 Docker를 기초적으로 이해하고 있으며 전문적인 환경에서 Docker를 사용하는 능력을 입증하고자 하는 개인들을 대상으로 합니다.

DCA 시험은 라이브 환경에서 일련의 작업을 완료해야 하는 성과 기반 시험입니다. 이 시험은 실제 상황에서 Docker 컨테이너를 다루는 능력을 시험하는 것을 목적으로 합니다. 후보자는 Docker 컨테이너 배포, 관리 및 문제 해결 능력을 증명해야 합니다. DCA 자격증은 2년 동안 유효하며 재인증 시험을 통해 갱신할 수 있습니다.

Docker DCA는 Docker 지식과 기술을 검증하려는 전문가를위한 훌륭한 인증 프로그램입니다. 인증 시험은 포괄적이며 Docker Containerization과 관련된 모든 필수 주제를 다룹니다. Docker DCA 인증은 전문가가 경력을 발전시키고 목표를 달성하는 데 도움이되는 귀중한 자격 증명입니다.

>> DCA시험대비 덤프 최신 샘플문제 <<

시험패스에 유효한 DCA시험대비 덤프 최신 샘플문제 최신버전 덤프데모문제 다운로드

많은 사이트에서Docker 인증DCA 인증시험대비자료를 제공하고 있습니다. 그중에서 DumpTOP를 선택한 분들은Docker 인증DCA시험통과의 지름길에 오른것과 같습니다. DumpTOP는 시험에서 불합격성적표를 받으시면 덤프비용을 환불하는 서비스를 제공해드려 아무런 걱정없이 시험에 도전하도록 힘이 되어드립니다. DumpTOP덤프를 사용하여 시험에서 통과하신 분이 전해주신 희소식이 DumpTOP 덤프품질을 증명해드립니다.

최신 Docker Certified Associate DCA 무료샘플문제 (Q47-Q52):

질문 # 47
You want to mount external storage to a particular filesystem path in a container in a Kubernetes pod.
What is the correct set of objects to use for this?

A. a volume in the pod specification, populated with a storageClass which is bound to a provisioner defined by a persistentVolume
B. a storageClass in the pod's specification, populated with a volume which is bound to a provisioner defined by a persistentVolume
C. a volume in the pod specification, populated with a persistentVolumeClaim bound to a persistentVolume defined by a storageClass
D. a persistentVolume in the pod specification, populated with a persistentVolumeClaim which is bound to a volume defined by a storageClass

정답：C

설명：
Explanation
In Kubernetes, to mount external storage to a filesystem path in a container within a pod, you would use a volume in the pod specification. This volume is populated with a persistentVolumeClaim that is bound to an existing persistentVolume. The persistentVolume is defined and managed by the storageClass which provides dynamic or static provisioning of the volume and determines what type of storage will be provided1.
References:
*Dynamic Volume Provisioning | Kubernetes

질문 # 48
Will this sequence of steps completely delete an image from disk in the Docker Trusted Registry?
Solution. Delete the image and remove permissions to the repository in the Docker Trusted Registry.

A. No
B. Yes

정답：A

설명：
= The sequence of steps will not completely delete an image from disk in the Docker Trusted Registry.
Deleting the image and removing permissions to the repository will only remove the image from the registry's user interface and prevent unauthorized access to it. However, the image data will still remain on the registry's storage backend until garbage collection is performed1. Garbage collection is a process that removes unused blobs (layers) from the registry's storage2. To run garbage collection, the registry must be stopped and the command bin/registry garbage-collect /etc/docker/registry/config.yml must be executed3. Alternatively, the registry can be configured to run garbage collection automatically at regular intervals4. References:
* Deleting images | Docker Documentation
* Garbage collection | Docker Documentation
* How to delete images from a private docker registry? | Stack Overflow
* Automating garbage collection | Docker Documentation

질문 # 49
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?

A. `kubectl cordon <node name>
B. `docker swarm leave'
C. `docker node update -availability drain <node name>
D. `kubectl drain <node name>'

정답：D

설명：
The command kubectl drain <node name> is the correct one to run on the node to gracefully terminate all pods on the node, while marking the node as unschedulable. This command will safely evict all the pods from the node before you perform maintenance on the node, such as installing patches or an OS upgrade1. It will respect the PodDisruptionBudgets you have specified, if any, and allow the pod's containers to gracefully terminate1. It will also mark the node as unschedulable, so that no new pods can be scheduled on the node until it is ready1.
The other commands are not correct because:
* docker swarm leave will make the node leave the swarm cluster, but it will not affect the Kubernetes workloads on the node2.
* docker node update -availability drain <node name> will change the availability of the node to drain, which means that no new tasks can be assigned to the node, but it will not terminate the existing pods on the node3.
* kubectl cordon <node name> will mark the node as unschedulable, but it will not evict the pods on the node4.
Reference:
* Safely Drain a Node | Kubernetes
* [docker swarm leave | Docker Docs]
* [docker node update | Docker Docs]
* [kubectl cordon | Kubernetes Docs]

질문 # 50
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. Pass -- insecure-registry to the Docker client.
B. Place the certificate in '/etc/docker/dtr/dtr.example.com.crt' and restart the Docker daemon on all cluster nodes.
C. Place the certificate in your OS certificate path, trust the certificate system- wide, and restart the Docker daemon across all cluster nodes.
D. Place the certificate in /etc/docker/certs.d/dtr.example.com/ca.crt' on all cluster nodes.
E. Pass '-trust-certificate ca.crt to the Docker client.

정답：C,D

설명：
Explanation
To trust a self-signed certificate from a Docker Trusted Registry (DTR), you need to place the certificate in the appropriate location on all cluster nodes and restart the Docker daemon. There are two possible locations for the certificate, depending on your OS and Docker version1:
*/etc/docker/certs.d/dtr.example.com/ca.crt: This is the preferred location for Linux systems and Docker versions 1.13 and higher. This directory is scanned by Docker for certificates and keys for each registry domain2.
*Your OS certificate path: This is the fallback location for other OSes and Docker versions. You need to find the certificate store for your OS and copy the certificate there. You also need to trust the certificate system-wide, which may require additional steps depending on your OS3.
The other options are not correct because:
*Passing '-trust-certificate ca.crt to the Docker client is not a valid option. There is no such flag for the Docker client4.
*Placing the certificate in '/etc/docker/dtr/dtr.example.com.crt' is not a valid location. The certificate should be in the /etc/docker/certs.d directory, not the /etc/docker/dtr directory1.
*Passing - insecure-registry to the Docker client is not a recommended option. This flag disables the TLS verification for the registry, which makes the communication insecure and vulnerable to attacks.
References:
*Use self-signed certificates | Docker Docs
*Test an insecure registry | Docker Docs
*Add TLS certificates as a trusted root authority to the host OS | Docker Docs
*docker | Docker Docs
*[Deploy a registry server | Docker Docs]

질문 # 51
A users attempts to set the system time from inside a Docker container are unsuccessful. Could this be blocking this operation?
Solution: inter-process communication

A. No
B. Yes

정답：A

설명：
(Please check the official Docker site for the answer) Comprehensive= (Please check the official Docker site for the comprehensive explanation) Reference: (Some possible references from the web search results are) Docker Security - Docker Documentation Docker Security Best Practices - Medium Docker Security Cheat Sheet - GitHub Docker Security: A Comprehensive Guide - Snyk Docker Security: Tips and Tricks to Secure Your Containers - DevSecOps I hope this helps you in your exam preparation. Good luck!

질문 # 52
......

저희 DumpTOP의 덤프 업데이트시간은 업계에서 가장 빠르다고 많은 덤프구매자 분들께서 전해주셨습니다. Docker DCA 덤프도 마찬가지 입니다. 저희는 수시로 덤프업데이트 가능성을 체크하여 덤프를 항상 시중에서 가장 최신버전이 될수있도록 최선을 다하고 있습니다. 구매후 1년무료업데이트서비스를 해드리기에 구매후에도 덤프유효성을 최대한 연장해드립니다.

DCA퍼펙트 덤프문제: https://www.dumptop.com/Docker/DCA-dump.html

BONUS!!! DumpTOP DCA 시험 문제집 전체 버전을 무료로 다운로드하세요: https://drive.google.com/open?id=199QKrjjvPxr-RR7v7hyymv89cCcONhUe

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