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| Section | Objectives |
|---|---|
| Troubleshooting | - Diagnostics and debugging
|
| Networking | - Docker networking concepts
|
| Image Creation, Management, and Registry | - Docker images lifecycle
|
| Storage and Volumes | - Data persistence in Docker
|
| Security | - Docker security fundamentals
|
| Orchestration | - Container orchestration basics
|
| Docker Installation & Configuration | - Docker Engine setup and configuration
|
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NEW QUESTION # 161
Will this action upgrade Docker Engine CE to Docker Engine EE?
Solution.Run docker engine activate.
Answer: B
Explanation:
Running docker engine activate will upgrade Docker Engine CE to Docker Engine EE. This is a feature that allows you to switch from the Community Edition to the Enterprise Edition without reinstalling Docker or losing any data. You need to have a valid license file and a subscription to Docker EE to use this feature1. Docker EE is a premium version of Docker CE that offers additional features, such as security scanning, image management, and certified plugins23. Reference:
Upgrade Docker Engine | Docker Docs
What is the exact difference between Docker EE (Enterprise Edition), Docker CE (Community Edition) and Docker (Custom Support) - Stack Overflow Docker Community Edition or Docker Enterprise Edition - Docker | BoxBoat
NEW QUESTION # 162
Is this a way to configure the Docker engine to use a registry without a trusted TLS certificate?
Solution. Set and export the IGNORE_TLS environment variable on the command line.
Answer: A
Explanation:
Explanation
Setting and exporting the IGNORE_TLS environment variable on the command line is not a way to configure the Docker engine to use a registry without a trusted TLS certificate. The IGNORE_TLS environment variable is not recognized by Docker and has no effect on its behavior. To configure the Docker engine to use a registry without a trusted TLS certificate, you need to either set INSECURE_REGISTRY in the /etc/docker/default configuration file or add --insecure-registry flag to the dockerd command. References:
https://docs.docker.com/registry/insecure/,
https://docs.docker.com/engine/reference/commandline/dockerd/#insecure-registries
NEW QUESTION # 163
When seven managers are in a swarm cluster how would they be distributed across three datacenters or availability zones?
Answer: A
NEW QUESTION # 164
Your organization has a centralized logging solution, such as Splunk.
Will this configure a Docker container to export container logs to the logging solution?
Solution. docker logs <eontainer-id>
Answer: A
Explanation:
Explanation
This does not configure a Docker container to export container logs to the logging solution. The docker logs command shows information about the logs of a container. It does not export or send the logs to any external destination. To configure a Docker container to export container logs to the logging solution, you need to use the --log-driver and --log-opt flags when creating or running the container. These flags allow you to specify which logging driver and options to use for the container. For example, to use Splunk as the logging driver, you can use --log-driver splunk and provide the Splunk URL, token, and other options using --log-opt.
References: https://docs.docker.com/engine/reference/commandline/logs/,
https://docs.docker.com/config/containers/logging/configure/,
https://docs.docker.com/config/containers/logging/splunk/
NEW QUESTION # 165
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.
Answer: A
Explanation:
= Creating a collection for each application is not a way to accomplish this. A collection is a term used by Ansible to describe a package of related content that can be used to automate the management of Kubernetes resources1. A collection is not a native Kubernetes concept and does not group resources together within the cluster. To group Kubernetes-specific resources, such as secrets, for each application, you need to use namespaces. A namespace is a logical partition of the cluster that allows you to isolate resources and apply policies to them2. You can create a namespace for each application and store the secrets and other resources in that namespace. This way, you can prevent conflicts and limit access to the resources of each application. To create a namespace, you can use the kubectl create namespace command or a yaml file2. To create a secret within a namespace, you can use the kubectl create secret command with the --namespace option or a yaml file with the metadata.namespace field3. References:
* Kubernetes Collection for Ansible - GitHub
* Namespaces | Kubernetes
* Secrets | Kubernetes
* Managing Secrets using kubectl | Kubernetes
NEW QUESTION # 166
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