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DCA Certification Practice & DCA Interactive Course

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The society has an abundance of capable people and there is a keen competition. Don't you feel a lot of pressure? No matter how high your qualifications, it does not mean your strength forever. Qualifications is just a stepping stone, and strength is the cornerstone which can secure your status. Docker DCA certification exam is a popular IT certification, and many people want to have it. With it you can secure your career. Dumpcollection's Docker DCA Exam Training materials is a good training tool. It can help you pass the exam successfully. With this certification, you will get international recognition and acceptance. Then you no longer need to worry about being fired by your boss.

The DCA exam is a comprehensive test that covers a wide range of topics related to Docker technology. It consists of 55 multiple-choice questions, and candidates are given 90 minutes to complete the exam. DCA exam is designed to assess the candidate's ability to work with Docker in real-world scenarios, and it covers topics such as Docker architecture, Docker CLI, Docker networking, Docker Compose, Docker Swarm, and Docker security. Candidates who pass the DCA Exam are considered Docker experts and are eligible to receive the DCA certification, which can help them stand out in the job market and advance their careers in the field of containerization and Docker technology.

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The second version is the web-based format of the Docker Certified Associate (DCA) Exam (DCA) practice test. Browsers such as Internet Explorer, Microsoft Edge, Firefox, Safari, and Chrome support the web-based practice exam. You don't have to install excessive plugins or software to attempt this Docker Certified Associate (DCA) Exam (DCA) practice test.

Docker Certified Associate (DCA) Exam Sample Questions (Q66-Q71):

NEW QUESTION # 66
You want to create a container that is reachable from its host's network. Does this action accomplish this?
Solution:Use either EXPOSE or --publish to access the containers on the bridge network

A. No
B. Yes

Answer: A

Explanation:
The answer depends on whether you want to access the container from the host's network or from other containers on the same network. EXPOSE and --publish have different effects on the container's port visibility. Reference: Docker run reference, Dockerfile reference, Docker networking overview

NEW QUESTION # 67
Does this describe the role of Control Groups (cgroups) when used with a Docker container?
Solution: role-based access control to clustered resources

A. No
B. Yes

Answer: A

Explanation:
= The role of Control Groups (cgroups) when used with a Docker container is not role-based access control to clustered resources. Cgroups are a feature of the Linux kernel that allow you to limit, manage, and isolate resource usage of collections of processes running on a system1. Resources are CPU time, system memory, network bandwidth, or combinations of these resources, and so on2. Cgroups allow Docker Engine to share available hardware resources to containers and optionally enforce limits and constraints3. Cgroups can help avoid "noisy neighbor" issues and improve the performance and security of containers4. Role-based access control (RBAC) is a different concept that refers to controlling access to resources based on the roles of individual users within an organization5.
References: : Lab: Control Groups (cgroups) | dockerlabs : Container security fundamentals part 4: Cgroups | Datadog Security Labs : Docker Namespace Vs Cgroup. Namespace and Cgroup | by MrDevSecOps - Medium : Role-based access control - Wikipedia : Control groups (cgroups) - Learn Docker - Fundamentals of Docker 18.x ...

NEW QUESTION # 68
How do you change the default logging driver for the docker daemon in Linux?

A. Use the -log-driver1 flag when you run a container.
B. Install a logging agent on the Linux host.
C. Set the value of 'log-driver' to the name of the logging driver in the daemon.json in /etc/docker.
D. At the command line, type: docker log driver set <driver name>

Answer: C

NEW QUESTION # 69
Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution. Set INSECURE_REGISTRY in the' /etc/docker/default' configuration file.

A. Yes
B. No

Answer: A

Explanation:
= Setting INSECURE_REGISTRY in the /etc/docker/default configuration file is one way to configure the Docker engine to use a registry without a trusted TLS certificate. This option tells the Docker daemon to accept insecure connections to the specified registry, bypassing the certificate verification1. However, this method is not recommended, as it exposes the registry and the Docker engine to potential security risks2. A better way to use a registry without a trusted TLS certificate is to add the registry's CA certificate to the Docker daemon's trust store, as described in the Docker documentation3 or other online guides4. Reference:
1: How to build docker registry without SSL
2: Verify repository client with certificates | Docker Docs
3: "docker pull" certificate signed by unknown authority
4: Login to docker registry with client certificate under windows

NEW QUESTION # 70
The Kubernetes yaml shown below describes a networkPolicy.

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

A. Yes
B. No

Answer: A

Explanation:
Explanation
The networkPolicy will block this traffic because it only allows ingress traffic from pods that have the tier: api label. Pods that have the tier: backend label do not match this selector and are therefore denied access to pods that have the tier: frontend label.
References:
https://kubernetes.io/docs/concepts/services-networking/network-policies/#the-networkpolicy-resource

NEW QUESTION # 71
......

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Biography

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Pass Guaranteed Quiz The Best DCA - Docker Certified Associate (DCA) Exam Certification Practice

Docker Certified Associate (DCA) Exam Sample Questions (Q66-Q71):

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DCA Certification Practice & DCA Interactive Course

Pass Guaranteed Quiz The Best DCA - Docker Certified Associate (DCA) Exam Certification Practice

Docker Certified Associate (DCA) Exam Sample Questions (Q66-Q71):

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