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[General] Latest Test DCA Experience | DCA Torrent

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【General】 Latest Test DCA Experience | DCA Torrent

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Docker Certified Associate (DCA) Certification Exam is a valuable certification for professionals working with Docker technologies. Docker Certified Associate (DCA) Exam certification exam validates the candidate's knowledge and skills in designing and deploying container-based applications and infrastructure. Docker Certified Associate (DCA) Exam certification is vendor-neutral and recognized globally, making it an excellent opportunity for professionals to showcase their expertise in using Docker technologies.
Docker Certified Associate (DCA) Exam Sample Questions (Q68-Q73):NEW QUESTION # 68
Is this a type of Linux kernel namespace that provides container isolation?
Solution. Process ID
  • A. No
  • B. Yes
Answer: B
Explanation:
Explanation
Process ID is a type of Linux kernel namespace that provides container isolation. Process ID (pid) namespace isolates the process ID number space, which means that processes in different pid namespaces can have the same PID. This allows each container to have its own init process (PID 1), which is the first process to start in a container and the ancestor of all other processes in the container. Pid namespace also prevents processes in one container from seeing or signaling processes in another container or on the host system, unless they share the same pid namespace or have the CAP_SYS_PTRACE capability. References:
https://docs.docker.com/engine/reference/run/#pid-settings-pid,
https://en.wikipedia.org/wiki/Linux_namespaces#Process_ID_(pid)

NEW QUESTION # 69
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 one pod and add all the resources needed for each application
  • A. Yes
  • B. No
Answer: B
Explanation:
Creating one pod and adding all the resources needed for each application is not a good way to accomplish the goal of grouping Kubernetes-specific resources for each application. This is because pods are the smallest unit of a Kubernetes application, and they are designed to run a single container or a set of tightly coupled containers that share the same network and storage resources1. Pods are ephemeral and can be created and destroyed by the Kubernetes system at any time. Therefore, putting multiple applications in one pod would make them harder to manage, scale, and update independently. A better way to accomplish the goal is to use namespaces, which are logical clusters within a physical cluster that can isolate resources, policies, and configurationsfor different applications2. Namespaces can also help organize secrets, which are Kubernetes objects that store sensitive information such as passwords, tokens, and keys3. Reference:
Pods | Kubernetes
Namespaces | Kubernetes
Secrets | Kubernetes

NEW QUESTION # 70
Is this a supported user authentication method for Universal Control Plane?
Solution.SAML
  • A. No
  • B. Yes
Answer: B
Explanation:
= SAML is a supported user authentication method for Universal Control Plane (UCP). UCP has its own built-in authentication mechanism and integrates with LDAP and Active Directory. It also supports Role Based Access Control (RBAC) and Docker Content Trust. UCP allows you to configure SAML as an authentication method and connect it to your Identity Provider (IdP). You need to provide the Entity ID and the ACS URL fromUCP to your IdP, and the SAML Sign-on URL and the x509 Certificate from your IdP to UCP12. Reference:
SAML | Docker Docs
Configure Single Sign-On | Docker Docs

NEW QUESTION # 71
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: B
Explanation:
Explanation
Using either EXPOSE or --publish to access the containers on the bridge network makes the container reachable from its host's network. The EXPOSE instruction in the Dockerfile specifies which ports the container listens on at runtime, while the --publish option maps a port on the host to a port in the container.
Both options allow external access to the container's services. References:
https://docs.docker.com/engine/reference/builder/#expose,
https://docs.docker.com/config/containers/container-networking/

NEW QUESTION # 72
Is this a type of Linux kernel namespace that provides container isolation?
Solution.Host
  • A. Yes
  • B. No
Answer: B
Explanation:
Explanation
= Host is not a type of Linux kernel namespace that provides container isolation. Linux namespaces are a feature of the Linux kernel that partitions kernel resources such that one set of processes sees one set of resources while another set of processes sees a different set of resources1. There are eight kinds of namespaces available: Mount, Process, User, Network, UTS, IPC, Cgroup, and Time1. Host is a parameter that can be used to run a container in the host's network namespace, which means the container shares the same network interfaces and configuration as the host2. References:
* Linux namespaces - Wikipedia
* Network settings | Docker Documentation

NEW QUESTION # 73
......
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